JPH0313274B2 - - Google Patents
Info
- Publication number
- JPH0313274B2 JPH0313274B2 JP10945181A JP10945181A JPH0313274B2 JP H0313274 B2 JPH0313274 B2 JP H0313274B2 JP 10945181 A JP10945181 A JP 10945181A JP 10945181 A JP10945181 A JP 10945181A JP H0313274 B2 JPH0313274 B2 JP H0313274B2
- Authority
- JP
- Japan
- Prior art keywords
- soil
- water
- present
- parts
- antifreeze
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000002689 soil Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000007798 antifreeze agent Substances 0.000 claims description 11
- 150000008051 alkyl sulfates Chemical class 0.000 claims description 8
- 239000008187 granular material Substances 0.000 claims description 7
- 150000003839 salts Chemical class 0.000 claims description 7
- 230000007935 neutral effect Effects 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- GLMQHZPGHAPYIO-UHFFFAOYSA-L azanium;2-hydroxypropane-1,2,3-tricarboxylate;iron(2+) Chemical compound [NH4+].[Fe+2].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O GLMQHZPGHAPYIO-UHFFFAOYSA-L 0.000 claims description 5
- 239000004313 iron ammonium citrate Substances 0.000 claims description 5
- 235000000011 iron ammonium citrate Nutrition 0.000 claims description 5
- 229940057995 liquid paraffin Drugs 0.000 claims description 5
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 4
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 4
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 4
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 3
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 235000002639 sodium chloride Nutrition 0.000 description 11
- 238000007710 freezing Methods 0.000 description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 7
- 230000008014 freezing Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 239000011780 sodium chloride Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- 230000002528 anti-freeze Effects 0.000 description 3
- VOXCUZGLPPXOHV-UHFFFAOYSA-N 6-methylheptyl hydrogen sulfate Chemical compound CC(C)CCCCCOS(O)(=O)=O VOXCUZGLPPXOHV-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- ZUBJEHHGZYTRPH-KTKRTIGZSA-N [(z)-octadec-9-enyl] hydrogen sulfate Chemical compound CCCCCCCC\C=C/CCCCCCCCOS(O)(=O)=O ZUBJEHHGZYTRPH-KTKRTIGZSA-N 0.000 description 2
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 2
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 150000005846 sugar alcohols Polymers 0.000 description 2
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- WEHZNZTWKUYVIY-UHFFFAOYSA-N 3-oxabicyclo[3.2.2]nona-1(7),5,8-triene-2,4-dione Chemical compound O=C1OC(=O)C2=CC=C1C=C2 WEHZNZTWKUYVIY-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 235000011148 calcium chloride Nutrition 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 229960000541 cetyl alcohol Drugs 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 235000019864 coconut oil Nutrition 0.000 description 1
- 239000003240 coconut oil Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 235000011147 magnesium chloride Nutrition 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- -1 olefin sulfate Chemical class 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
Description
本発明は、氷点以下の土壌を長期間にわたつて
不凍結状態に維持せしめ、又、たとえ凍結状態に
到つても、氷土の硬度が低い、すなわち柔らかい
凍土凍結とするための、取り扱いの容易な顆粒状
土壌凍結防止剤に関するものである。
土壌には重力によつて自由に移動し得る自由水
と、土壌粒子の表面に極めて薄い膜をなして吸着
している吸着水の他に、各粒子間の空隙に生じて
毛細管力によつて保持されている保持水等の多量
の水分が含まれている。
従つて土壌が外気等の変化により、一旦、零下
に冷却されると、土壌中の自由水、吸着水、保持
水が凍結を始める。この様な凍結に対する防止剤
として、液状塩類からなる凍結防止剤や、ペース
ト状多価アルコール等からなる凍結防止剤などが
ある。しかしながら、分子量の小さい無機中性塩
類の場合、これを水に溶解すると、その溶液の氷
点を降下させることができるが、これを土壌に撒
布しても撒水あるいは降雨により溶解流出してし
まい、効果が失なわれてしまう事が多い。また、
多価アルコール等についても同様なことが云え
る。既知の凍結防止剤は降雨の影響や均一撒布の
困難さ、凍結後の硬度の硬さ（非常に硬くなる）
等に欠点が多い。また、土壌に撒布する以前の中
性無機塩類の保存は、湿度等により、水分が存在
すると土壌に撒布以前に相互に凝結してしまい、
取扱いが不便であるばかりでなく、撒布すること
ができなくなることすらしばしば発生する。
本発明は、これらの欠点をすべて解決したもの
で、取扱いが容易で、土壌に対して容易に撒布で
き、しかも土壌凍結防止効果にすぐれている新規
な土壌凍結防止剤を提供する。
本発明は、
Ａ 中性無機塩類の１種以上、
Ｂ 下記の式で示される高分子物質又はポリアク
リル酸ソーダ、
Ｃ ポリカルボン酸、カルボキシメチルセルロー
ズの１種以上、
上記Ａ，Ｂ、及びＣを水に溶いて混合した後、
高級アルキルサルフエートの１種以上を添加混合
して顆粒化し、これをクエン酸鉄アンモニウム及
び流動パラフインを用いてコーテイングしてなる
土壌凍結防止剤に関するものである。
本発明の土壌凍結防止剤は、上記Ａ，Ｂ及びＣ
を水に溶いて混合した後、高級アルキルサルフエ
ートの１種以上を添加混合して顆粒化し、これに
クエン酸鉄アンモニウム及び流動パラフインを添
加、混合して造粒物の表面をコーテイングし、必
要に応じてこれを乾燥脱水することによつて製造
することができる。
本発明に用いる中性無機塩類としては次のもの
が例示される：塩化ナトリウム、塩化リチウム、
岩塩、食塩、塩化カルシウム、塩化マグネシウ
ム、塩化アンモニウム、硝酸ナトリウム、硝酸カ
リウム。中性無機塩類は氷点降下に好適である。
また、本発明に用いる下記の式で示される高分
子物質は、イソバン（クラレイソプレンケミカル
社製）の名称で市販されているものが有利に使用
される。
この高分子物質又はボリアクリル酸ソーダは吸
水性が良好である。
また、ポリカルボン酸としては、飽和、不飽和
の脂肪族、脂環式、芳香族多塩基性カルボン酸を
使用し、その例としては次のようなものが好適で
ある：無水フタル酸、テレフタル酸、コハク酸、
マレイン酸、無水マレイン酸、フタル酸、イタコ
ン酸、コハク酸、マロン酸。
ポリカルボン酸及びカルボキシメチルセルロー
ズは造粒効果にすぐれている。
本発明においては、前記Ａ，Ｂ、及びＣを水に
溶いて混合した後、これに高級アルキルサルフエ
ートの１種以上を添加し、よく混合すれば、やが
て顆粒化物が生成する。
高級アルキルサルフエートは界面活性剤で、乳
化作用にすぐれている。高級アルキルサルフエー
トとしては、イソオクチルサルフエート、オレイ
ルサルフエート、オレフインサルフエート、ヤシ
油アルコール系アルキルサルフエート、セチルア
ルコール系アルキルサルフエートなどがある。
顆粒化物にはクエン酸鉄アンモニウム及び流動
パラフインを添加、混合して表面をコーテイング
し、必要に応じて乾燥脱水することによつて本発
明の土壌凍結防止剤が得られる。
本発明の土壌凍結防止剤は土壌を不凍結状態に
長時間継続させ、また、たとえ凍結状態に到つて
も氷土の硬度が低くて柔らかい凍土が得られると
いうすぐれた効果を発揮するものである。
次に本発明の実施例を示すが、部はすべて重量
部である。
実施例 １
NaCl55部、Na2SO416部、MgCl2・6H2O24部
を加え、混合する。この混合物に、ニーダー撹拌
器でクラレイ−イソバン110（アルキルカルボン酸
共重合体）0.15部及び無水フタル酸0.05部及びカ
ルボキシメチルセルローズ0.4部を３部の水に溶
いて混合した後、オレイルサルフエート0.3部、
イソオクチルサルフエート0.03部を加え、混合し
て顆粒化する。
この顆粒化物に、クエン酸鉄アンモニウム0.3
部、流動パラフイン0.3部を加えよく混合した後
150℃乾燥器中で脱水乾燥する。すると50〜100メ
ツシユの顆粒化凍結防止剤が得られる。
こうして得た顆粒状粉末を厚さ７cmの水分含量
10％の砂層表面に種々の割合で撒布し、表面の凍
結を測定し、表−１の結果を得た。
なお、表−２の従来の凍結防止剤としては、岩
塩を用いた。
The present invention maintains soil below the freezing point in an unfrozen state for a long period of time, and even if it becomes frozen, the hardness of the frozen soil is low, that is, the frozen soil is soft and easy to handle. The present invention relates to a granular soil antifreeze agent. In addition to free water that can move freely due to gravity in soil and adsorbed water that forms an extremely thin film on the surface of soil particles, there is also water that forms in the voids between each particle and is absorbed by capillary force. Contains a large amount of water, such as retained water. Therefore, once the soil is cooled to below zero due to changes in the outside air, free water, adsorbed water, and retained water in the soil begin to freeze. As antifreeze agents for such freezing, there are antifreeze agents made of liquid salts, antifreeze agents made of pasty polyhydric alcohols, and the like. However, in the case of inorganic neutral salts with small molecular weights, when dissolved in water, the freezing point of the solution can be lowered, but even if this is sprinkled on soil, it will dissolve and run off due to watering or rainfall, making it ineffective. is often lost. Also,
The same can be said of polyhydric alcohols and the like. Known antifreeze agents suffer from the effects of rainfall, difficulty in uniform application, and hardness after freezing (becomes very hard).
There are many shortcomings. In addition, if neutral inorganic salts are stored before being applied to the soil, they may condense together before being applied to the soil if water is present due to humidity, etc.
Not only is it inconvenient to handle, but it often even becomes impossible to spray. The present invention solves all of these drawbacks and provides a novel soil antifreeze agent that is easy to handle, can be easily applied to soil, and has an excellent soil antifreeze effect. The present invention comprises: A: one or more neutral inorganic salts; B: a polymeric substance represented by the following formula or sodium polyacrylate; C Polycarboxylic acid, one or more types of carboxymethyl cellulose, and after dissolving and mixing the above A, B, and C in water,
The present invention relates to a soil antifreeze agent made by adding and mixing one or more higher alkyl sulfates, granulating the granules, and coating the granules with iron ammonium citrate and liquid paraffin. The soil antifreeze agent of the present invention comprises the above A, B and C.
After dissolving and mixing in water, add and mix one or more higher alkyl sulfates to form granules, add and mix iron ammonium citrate and liquid paraffin to coat the surface of the granules, and coat the surface of the granules as necessary. It can be produced by drying and dehydrating it depending on the requirements. Examples of neutral inorganic salts used in the present invention include: sodium chloride, lithium chloride,
Rock salt, table salt, calcium chloride, magnesium chloride, ammonium chloride, sodium nitrate, potassium nitrate. Neutral inorganic salts are suitable for freezing point depression. Further, as the polymeric substance represented by the following formula used in the present invention, one commercially available under the name of Isoban (manufactured by Clareisoprene Chemical Co., Ltd.) is advantageously used. This polymer material or sodium polyacrylate has good water absorption. In addition, as the polycarboxylic acid, saturated or unsaturated aliphatic, alicyclic, or aromatic polybasic carboxylic acids are used, examples of which are preferably the following: phthalic anhydride, terephthalic anhydride. acid, succinic acid,
Maleic acid, maleic anhydride, phthalic acid, itaconic acid, succinic acid, malonic acid. Polycarboxylic acid and carboxymethyl cellulose have excellent granulation effects. In the present invention, after dissolving A, B, and C in water and mixing them, one or more higher alkyl sulfates are added thereto and mixed well to form a granulated product. Higher alkyl sulfates are surfactants and have excellent emulsifying properties. Examples of higher alkyl sulfates include isooctyl sulfate, oleyl sulfate, olefin sulfate, coconut oil alcohol-based alkyl sulfate, and cetyl alcohol-based alkyl sulfate. The soil anti-freezing agent of the present invention can be obtained by adding iron ammonium citrate and liquid paraffin to the granulated product, mixing it to coat the surface, and drying and dehydrating it as necessary. The soil antifreeze agent of the present invention exhibits the excellent effect of keeping soil in an unfrozen state for a long time, and even when it reaches a frozen state, the hardness of frozen soil is low and soft frozen soil can be obtained. . Examples of the present invention are shown below, in which all parts are by weight. Example 1 Add 55 parts of NaCl, 16 parts of Na 2 SO 4 and 24 parts of MgCl 2 .6H 2 O and mix. To this mixture, 0.15 parts of Kuraray-isoban 110 (alkyl carboxylic acid copolymer), 0.05 parts of phthalic anhydride, and 0.4 parts of carboxymethyl cellulose were dissolved in 3 parts of water and mixed, and then 0.3 parts of oleyl sulfate was added to this mixture using a kneader stirrer. Department,
Add 0.03 parts of isooctyl sulfate and mix to granulate. In this granulated product, iron ammonium citrate 0.3
After adding 0.3 parts of liquid paraffin and mixing well
Dehydrate and dry in a dryer at 150℃. This yields 50 to 100 meshes of granulated antifreeze. The granular powder obtained in this way is 7 cm thick with a moisture content of
It was applied at various ratios on the surface of a 10% sand layer, and the freezing of the surface was measured, and the results shown in Table 1 were obtained. Note that rock salt was used as the conventional antifreeze agent in Table 2.
【表】【table】
【表】
凍結した土壌を凍結より３時間後に木下式硬度
計を用いてその硬度を測定したところ、本凍結防
止剤を使用したものは、その硬度が10〜20Kg／cm2
であつたが従来の凍結防止剤では数十〜100Kg／
cm2の硬度を示した。[Table] When the hardness of frozen soil was measured using a Kinoshita hardness meter 3 hours after freezing, the hardness of the soil using this antifreeze was 10 to 20 kg/cm 2
However, with conventional anti-freezing agents, the amount of
It showed a hardness of cm 2 .
Claims (1)
リル酸ソーダ、 Ｃ ポリカルボン酸、カルボキシメチルセルロー
ズの１種以上、 上記Ａ，Ｂ及びＣを水に溶いて混合した後、高
級アルキルサルフエートの１種以上を添加混合し
て顆粒化し、これをクエン酸鉄アンモニウム及び
流動パラフインを用いてコーテイングしてなる土
壌凍結防止剤。[Scope of Claims] 1 A: One or more types of neutral inorganic salts, B: A polymeric substance represented by the following formula or sodium polyacrylate, C. After dissolving and mixing one or more of polycarboxylic acid, carboxymethyl cellulose, and the above A, B, and C in water, one or more of higher alkyl sulfates are added and mixed to form granules, and this is granulated with iron ammonium citrate. and a soil antifreeze agent coated with liquid paraffin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10945181A JPS5859280A (en) | 1981-07-15 | 1981-07-15 | Antifreezing agent for soil and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10945181A JPS5859280A (en) | 1981-07-15 | 1981-07-15 | Antifreezing agent for soil and production thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5859280A JPS5859280A (en) | 1983-04-08 |
| JPH0313274B2 true JPH0313274B2 (en) | 1991-02-22 |
Family
ID=14510564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10945181A Granted JPS5859280A (en) | 1981-07-15 | 1981-07-15 | Antifreezing agent for soil and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5859280A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60202182A (en) * | 1984-03-24 | 1985-10-12 | Matsushita Electric Works Ltd | Anti-icing composition |
| AT394199B (en) * | 1989-11-10 | 1992-02-10 | Lang Chem Tech Prod | FREEZER PROTECTOR AND ICE SOLVENT CONTAINING POLYCARBONIC ACIDS |
| CA2681890C (en) * | 2007-05-04 | 2017-05-16 | Ecolab Inc. | Water soluble magnesium compounds as cleaning agents and methods of using them |
| KR101655504B1 (en) * | 2010-05-21 | 2016-09-07 | 다케시 시미즈 | Cold-storage agent |
-
1981
- 1981-07-15 JP JP10945181A patent/JPS5859280A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5859280A (en) | 1983-04-08 |
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