CN115893459A - Preparation method of multifunctional water-soluble nano magnesium hydroxide stock solution - Google Patents
Preparation method of multifunctional water-soluble nano magnesium hydroxide stock solution Download PDFInfo
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- CN115893459A CN115893459A CN202211638944.2A CN202211638944A CN115893459A CN 115893459 A CN115893459 A CN 115893459A CN 202211638944 A CN202211638944 A CN 202211638944A CN 115893459 A CN115893459 A CN 115893459A
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- 239000011550 stock solution Substances 0.000 title claims abstract description 28
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 title claims abstract description 27
- 239000000347 magnesium hydroxide Substances 0.000 title claims abstract description 27
- 229910001862 magnesium hydroxide Inorganic materials 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 87
- 239000000243 solution Substances 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000725 suspension Substances 0.000 claims abstract description 21
- 159000000003 magnesium salts Chemical class 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 239000002270 dispersing agent Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000012266 salt solution Substances 0.000 claims abstract description 5
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims abstract description 4
- 230000007062 hydrolysis Effects 0.000 claims abstract description 4
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 4
- 229940050906 magnesium chloride hexahydrate Drugs 0.000 claims description 9
- DHRRIBDTHFBPNG-UHFFFAOYSA-L magnesium dichloride hexahydrate Chemical compound O.O.O.O.O.O.[Mg+2].[Cl-].[Cl-] DHRRIBDTHFBPNG-UHFFFAOYSA-L 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 abstract description 26
- 229910000030 sodium bicarbonate Inorganic materials 0.000 abstract description 13
- 235000017557 sodium bicarbonate Nutrition 0.000 abstract description 13
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 10
- 235000013305 food Nutrition 0.000 abstract description 8
- 230000001954 sterilising effect Effects 0.000 abstract description 5
- 239000003814 drug Substances 0.000 abstract description 4
- 239000002537 cosmetic Substances 0.000 abstract description 3
- 229940079593 drug Drugs 0.000 abstract description 3
- 230000007935 neutral effect Effects 0.000 abstract description 3
- 229940091250 magnesium supplement Drugs 0.000 description 15
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 13
- 239000011777 magnesium Substances 0.000 description 13
- 229910052749 magnesium Inorganic materials 0.000 description 13
- 239000000047 product Substances 0.000 description 9
- 239000002244 precipitate Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
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- 108090000790 Enzymes Proteins 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 235000019606 astringent taste Nutrition 0.000 description 2
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- 210000004027 cell Anatomy 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003722 extracellular fluid Anatomy 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 235000019640 taste Nutrition 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 208000004998 Abdominal Pain Diseases 0.000 description 1
- 206010001497 Agitation Diseases 0.000 description 1
- 208000007415 Anhedonia Diseases 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 206010010071 Coma Diseases 0.000 description 1
- 206010010774 Constipation Diseases 0.000 description 1
- 206010012735 Diarrhoea Diseases 0.000 description 1
- 208000010496 Heart Arrest Diseases 0.000 description 1
- 206010020772 Hypertension Diseases 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 208000016285 Movement disease Diseases 0.000 description 1
- 208000007101 Muscle Cramp Diseases 0.000 description 1
- 206010028289 Muscle atrophy Diseases 0.000 description 1
- 206010028347 Muscle twitching Diseases 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 108010009736 Protein Hydrolysates Proteins 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 208000022531 anorexia Diseases 0.000 description 1
- 229940069428 antacid Drugs 0.000 description 1
- 239000003159 antacid agent Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000004596 appetite loss Effects 0.000 description 1
- 206010003119 arrhythmia Diseases 0.000 description 1
- 230000006793 arrhythmia Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 208000015114 central nervous system disease Diseases 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- 239000003792 electrolyte Substances 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 210000004211 gastric acid Anatomy 0.000 description 1
- 230000002496 gastric effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 210000005260 human cell Anatomy 0.000 description 1
- 208000028867 ischemia Diseases 0.000 description 1
- 235000021266 loss of appetite Nutrition 0.000 description 1
- 208000019017 loss of appetite Diseases 0.000 description 1
- 238000009140 magnesium supplementation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229940127554 medical product Drugs 0.000 description 1
- 210000003470 mitochondria Anatomy 0.000 description 1
- 230000020763 muscle atrophy Effects 0.000 description 1
- 201000000585 muscular atrophy Diseases 0.000 description 1
- 230000002232 neuromuscular Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 210000002027 skeletal muscle Anatomy 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
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- 238000003860 storage Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Images
Abstract
The invention provides a preparation method of a multifunctional water-soluble nano magnesium hydroxide stock solution, which is characterized in that magnesium salt is mixed with water at the temperature of 20-30 ℃ for hydrolysis, sodium hydroxide is mixed with water at the temperature of 20-30 ℃ for full stirring, then the two solutions are mixed and stirred to obtain a suspension, then a dispersing agent is dissolved in water and added into the suspension, the suspension is stirred to obtain a clear liquid, the mass concentration of the sodium hydroxide at normal temperature and normal pressure is 1-10%, the mixing is to pour the sodium hydroxide solution into the magnesium salt solution and stir the solution while slowly pouring, the dispersing agent solution is mainly sodium bicarbonate, and the mass concentration of the sodium bicarbonate at normal temperature and normal pressure is 1-20%. The invention has the advantages that: the product is pure water-soluble magnesium hydroxide stock solution, is transparent clear liquid with the pH value close to neutral, is easy to add and absorb, and can be directly or indirectly applied to daily necessities, cosmetics, disinfection and sterilization products, foods, health-care foods and medicines.
Description
Technical Field
The invention relates to the field of additive preparation, and in particular relates to a preparation method of a multifunctional water-soluble nano magnesium hydroxide stock solution.
Background
The magnesium hydroxide has wide application range and can be used as food additives, rubber and plastic flame retardants, cleaning bactericides, antacids for medicines, gastric acid neutralizers and magnesium element supplements. However, magnesium hydroxide is a white crystal or powder, is poorly soluble in water, and is generally applied in a solid form. When used as a magnesium supplement, the magnesium supplement is applied in a liquid form instead of a solid, and is more easily absorbed by the living organism. In the field of magnesium supplementation of living organisms, the prior literature indicates that magnesium acts as an activator for at least 300 different enzyme systems in living organisms. The total magnesium content of a normal adult body is about 25g, wherein 60-65% of the magnesium is present in bones and teeth, and 27% of the magnesium is distributed in soft tissues.
Magnesium is the main cation in human cells in the medical field, is concentrated in mitochondria, is second to potassium and phosphorus, is second to sodium and calcium in extracellular fluid, and is an essential substance for basic biochemical reactions of various cells in vivo. Magnesium is the most important inorganic substance in the intercellular fluid system of a biological organism, and clinical medical experiments on human body functions show that magnesium plays an important role in controlling the activity of carbohydrate, fat and electrolyte conversion, cell permeability, neuromuscular excitability and division and transfer of phosphate by enzyme, and is an important factor for ensuring human health and preventing diseases. Based on the theory of the important role of magnesium for living organisms, a series of physical symptoms may be based on symptoms caused by insufficient magnesium:
1. central nervous system disorders manifested by anhedonia, depression, loss of appetite, disorientation and coma;
2. disorders of the skeletal muscle system manifested by muscle twitching, cramps, movement disorders, muscle atrophy;
3. cardiovascular diseases, i.e. arrhythmia, ischemia, hypertension, acute cardiac arrest;
4. gastrointestinal symptoms such as anorexia, diffuse abdominal pain, diarrhea, and obstipation;
however, most of magnesium element on the market exists in a solid form, a method for supplementing the magnesium element to people in time is lacked, and the absorption rate is low, so that a preparation method of a multifunctional water-soluble nano magnesium hydroxide stock solution which has high biological absorption efficiency and can be combined with daily necessities to supplement the magnesium element in vivo is needed.
Disclosure of Invention
The invention aims to provide a preparation method of a multifunctional water-soluble nano magnesium hydroxide stock solution, wherein a solution obtained by mixing a magnesium salt and a sodium hydroxide solution is easier to absorb by a human body, and the concentration of the magnesium salt can be adjusted from 1% to 30% according to the product requirement, so that the magnesium salt can be efficiently utilized.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that:
a preparation method of a multifunctional water-soluble nano magnesium hydroxide stock solution is characterized in that magnesium salts are mixed with water at the temperature of 20-30 ℃ for hydrolysis, sodium hydroxide is mixed with water at the temperature of 20-30 ℃ for full stirring, then the two solutions are mixed and stirred to obtain a suspension, then a dispersing agent is dissolved in water and added into the suspension, and the mixture is stirred to obtain a clear liquid.
As an improvement, the magnesium salt is a mixture of anhydrous magnesium chloride and magnesium chloride hexahydrate, the mass concentration of the mixture of the magnesium salt and water is 1-30%, and the reaction environment is at normal temperature and normal pressure.
As an improvement, the mass concentration of the sodium hydroxide at normal temperature and normal pressure is 1-10%, and the mixing is to pour the sodium hydroxide solution into the magnesium salt solution, and stirring is required to be carried out while slowly pouring.
As a modification, the dispersant solution is mainly sodium bicarbonate, and the mass concentration of the dispersant solution at normal temperature and normal pressure is 1-20%.
The beneficial effects of the invention are as follows: magnesium hydroxide and a salt solution obtained by mixing a magnesium salt and a sodium hydroxide solution are more convenient for absorption of living organisms, different products can be conveniently added and used by adjusting the mixing concentration ratio, and the final product is a pure water-soluble magnesium hydroxide stock solution, a transparent clear liquid with a pH value close to neutral, is easy to add and absorb, and can be directly or indirectly applied to daily necessities, cosmetics, disinfection and sterilization products, foods, health-care foods and medicine applications.
Drawings
FIG. 1 is a block diagram of a preparation method of a multifunctional water-soluble nano magnesium hydroxide stock solution.
Detailed Description
In order to make the content of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1, a method for preparing a multifunctional water-soluble nano magnesium hydroxide stock solution is characterized in that magnesium salt is mixed with water at 20-30 ℃ for hydrolysis, sodium hydroxide is mixed with water at 20-30 ℃ and fully stirred, then the two solutions are mixed and stirred to obtain a suspension, then a dispersing agent is dissolved in water and added into the suspension, and the mixture is stirred to obtain a clear liquid. When the product is required to be added, the product can be diluted by mixing with water and can be directly or directly applied according to the requirements and characteristics of the product, so that the discomfort of taste organs caused by bitter taste and astringent taste is avoided.
The magnesium salt is a mixture of anhydrous magnesium chloride and magnesium chloride hexahydrate, the mass concentration of the mixture of the magnesium salt and water is 1-30%, and the reaction environment is at normal temperature and normal pressure. The mass concentration of the sodium hydroxide is 1-10% at normal temperature and normal pressure, and the mixing is to pour the sodium hydroxide solution into the magnesium salt solution, and to stir the sodium hydroxide solution while pouring the sodium hydroxide solution slowly. The dispersant solution is mainly sodium bicarbonate, and the mass concentration of the dispersant solution at normal temperature and normal pressure is 1-20%. The magnesium salt and the sodium hydroxide solution are mixed and react to obtain the magnesium hydroxide solution and the salt, and the magnesium hydroxide solution is more convenient for human body to absorb.
Example 1: 800 g of anhydrous magnesium chloride is dissolved in 800 ml of water at normal temperature for standby. 10 g of sodium hydroxide is dissolved in 100 ml of water at normal temperature for later use. 10 g of sodium bicarbonate is dissolved in 100 ml of water at normal temperature for standby. Slowly dripping sodium hydroxide solution into the magnesium salt hydrolysate, stirring, and separating out white precipitate to obtain suspension. And (3) dripping the sodium bicarbonate solution into the suspension, and stirring until a clear water-soluble magnesium hydroxide stock solution with the mass concentration of 30% is obtained.
Example 2: 400 g of anhydrous magnesium chloride is dissolved in 800 ml of water at normal temperature for standby. 5g of sodium hydroxide is dissolved in 100 ml of water at normal temperature for standby. 5g of sodium bicarbonate is dissolved in 100 ml of water at normal temperature for standby. Slowly dripping the sodium hydroxide solution into the anhydrous magnesium chloride solution, stirring, and separating out white precipitate to obtain the suspension. And (3) dripping the sodium bicarbonate solution into the suspension, and stirring until a clear water-soluble magnesium hydroxide stock solution with the mass concentration of 15% is obtained.
Example 3: 30 g of anhydrous magnesium chloride is dissolved in 800 ml of water at normal temperature for standby. 0.5 g of sodium hydroxide was dissolved in 100 ml of water at room temperature for further use. 0.5 g of sodium bicarbonate is dissolved in 100 ml of water at normal temperature for standby. Slowly dripping the sodium hydroxide solution into the anhydrous magnesium chloride solution, stirring, and separating out white precipitate to obtain the suspension. And (3) dripping the sodium bicarbonate solution into the suspension, and stirring until a clear water-soluble magnesium hydroxide stock solution with the mass concentration of 1% is obtained.
Example 4: 800 g of magnesium chloride hexahydrate are dissolved in 400 ml of water at normal temperature for later use. 10 g of sodium hydroxide was dissolved in 100 ml of water at room temperature for further use. 10 g of sodium bicarbonate is dissolved in 100 ml of water at normal temperature for later use. Slowly dripping sodium hydroxide solution into magnesium chloride hexahydrate, stirring, and separating out white precipitate to obtain suspension. And (3) dripping the sodium bicarbonate solution into the suspension, and stirring until a clear water-soluble magnesium hydroxide stock solution with the mass concentration of 30% is obtained.
Example 5: 400 g of magnesium chloride hexahydrate is dissolved in 400 ml of water at normal temperature for later use. 5g of sodium hydroxide is dissolved in 100 ml of water at normal temperature for standby. 5g of sodium bicarbonate is dissolved in 100 ml of water at normal temperature for standby. Slowly dripping the sodium hydroxide solution into the magnesium chloride hexahydrate solution, stirring, and separating out white precipitate to obtain a suspension. And (3) dripping the sodium bicarbonate solution into the suspension, and stirring until a clear water-soluble magnesium hydroxide stock solution with the mass concentration of 15% is obtained.
Example 6: 40 g of magnesium chloride hexahydrate is dissolved in 400 ml of water at normal temperature for later use. 0.5 g of sodium hydroxide was dissolved in 100 ml of water at room temperature for further use. 0.5 g of sodium bicarbonate is dissolved in 100 ml of water at normal temperature for standby. Slowly dripping sodium hydroxide solution into magnesium chloride hexahydrate, stirring, and separating out white precipitate to obtain suspension. And (3) dripping the sodium bicarbonate solution into the suspension, and stirring until a clear water-soluble magnesium hydroxide stock solution with the mass concentration of 1% is obtained.
In the using process, the pure water-soluble magnesium hydroxide stock solution and the transparent clear liquid with the pH value close to neutral are easy to add and absorb, and can be directly or indirectly applied to daily necessities, cosmetics, disinfection and sterilization products, foods, health-care foods and medicines. The prepared high-concentration stock solution can be directly applied to the outside of an organism, the disinfection and sterilization effects are obvious, and if the stock solution is taken orally, the stock solution needs to be matched according to the actual conditions, so that the taste is prevented from being influenced by excessive bitter and astringent taste.
The preparation process of the stock solution is environment-friendly and harmless, no waste is generated, the whole production process is operated at normal temperature and normal pressure, the process is simple, the dispersibility and the stability are good, meanwhile, the storage and the transportation are convenient, and the use is safe and reliable. The stock solution is directly added into an application example in a liquid form, and can be used as a water-based flame retardant, a curing agent and a nutrition enhancer, so that the stock solution can be widely used as components of daily chemical products, disinfection and sterilization products, foods, health-care foods and medical products.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. A preparation method of a multifunctional water-soluble nano magnesium hydroxide stock solution is characterized in that magnesium salt is mixed with water at the temperature of 20-30 ℃ for hydrolysis, sodium hydroxide is mixed with water at the temperature of 20-30 ℃ for full stirring, then the two solutions are mixed and stirred to obtain a suspension, then a dispersing agent is dissolved in water and added into the suspension, and the mixture is stirred to obtain a clear liquid.
2. The method for preparing the multifunctional water-soluble nano magnesium hydroxide stock solution according to claim 1, wherein the magnesium salt is a mixture of anhydrous magnesium chloride and magnesium chloride hexahydrate, the mass concentration of the mixture of the magnesium salt and water is 1-30%, and the reaction environment is at normal temperature and normal pressure.
3. The method for preparing the multifunctional water-soluble nano magnesium hydroxide stock solution according to claim 1, wherein the mass concentration of the sodium hydroxide at normal temperature and normal pressure is 1-10%, and the mixing is performed by pouring the sodium hydroxide solution into the magnesium salt solution and stirring while slowly pouring.
4. The method for preparing the multifunctional water-soluble nano magnesium hydroxide stock solution as claimed in claim 1, wherein the dispersant solution is mainly sodium bicarbonate, and the mass concentration of the dispersant solution is 1 to 20 percent at normal temperature and normal pressure.
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|---|---|---|---|---|
| CA2032470A1 (en) * | 1989-05-05 | 1990-11-06 | Andreas Meier | Finely powdery magnesium hydroxide and a process for preparing thereof |
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2022
- 2022-12-20 CN CN202211638944.2A patent/CN115893459A/en active Pending
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|---|---|---|---|---|
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