GB2022248A - Method of determining nitric acid or nitrates - Google Patents

Method of determining nitric acid or nitrates

Info

Publication number
GB2022248A
GB2022248A GB7918846A GB7918846A GB2022248A GB 2022248 A GB2022248 A GB 2022248A GB 7918846 A GB7918846 A GB 7918846A GB 7918846 A GB7918846 A GB 7918846A GB 2022248 A GB2022248 A GB 2022248A
Authority
GB
United Kingdom
Prior art keywords
nitric acid
nitrates
sample
water
reaction heat
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.)
Withdrawn
Application number
GB7918846A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zellweger Uster AG
Original Assignee
Zellweger Uster AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zellweger Uster AG filed Critical Zellweger Uster AG
Publication of GB2022248A publication Critical patent/GB2022248A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
    • G01N25/48—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
    • G01N25/4873—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation for a flowing, e.g. gas sample
    • G01N25/4893—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation for a flowing, e.g. gas sample by using a differential method

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

A method of determining nitric acid in (i) a mixture with water or other acids; or (ii) in solid nitrates or mixtures of solid nitrates with other solids after they have been dissolved in water, and nitric acid has been liberated therefrom by the addition of sulphuric acid, comprising reacting the sample to be determined in the form of a solution with a readily nitratable chemical substance, measuring the reaction heat thus evolved, and evaluating the reaction heat measured as a gauge of the amount of nitric acid in the sample. The method is suitable for continuous determination.
GB7918846A 1978-05-31 1979-05-30 Method of determining nitric acid or nitrates Withdrawn GB2022248A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH594978A CH636446A5 (en) 1978-05-31 1978-05-31 METHOD FOR DETERMINING Nitric Acid In Mixture With Water Or Other Acids.

Publications (1)

Publication Number Publication Date
GB2022248A true GB2022248A (en) 1979-12-12

Family

ID=4302003

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7918846A Withdrawn GB2022248A (en) 1978-05-31 1979-05-30 Method of determining nitric acid or nitrates

Country Status (4)

Country Link
CH (1) CH636446A5 (en)
DE (1) DE2912578C3 (en)
FR (1) FR2427596A1 (en)
GB (1) GB2022248A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992000589A1 (en) * 1990-06-25 1992-01-09 Maxtor Corporation Read/write control for disk drive

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB817375A (en) * 1955-11-17 1959-07-29 Carves Simon Ltd Improvements relating to the control of chemical plant
US1594593A (en) * 1924-03-01 1926-08-03 Grasselli Chemical Co Apparatus for analyzing by heat of reaction
GB876031A (en) * 1959-03-16 1961-08-30 Transparent Paper Ltd Improvements in or relating to methods of testing and controlling the progress of chemical reactions
FR1385434A (en) * 1963-10-10 1965-01-15 Saint Gobain Nucleaire Soc Continuous fluid analysis method
CA836505A (en) * 1964-01-17 1970-03-10 T. Priestley Philip Apparatus for the determination of the concentration of a chemical compound in a liquid
FR1461653A (en) * 1965-10-28 1966-02-25 Magyar Optikai Muevek Method and device for rapid substance analysis using temperature measurements
BE677097A (en) * 1966-02-28 1966-08-29
DE6947615U (en) * 1969-12-09 1970-06-25 Kali Chemie Ag DEVICE FOR AUTOMATED THERMOMETRIC ANALYSIS
US3768973A (en) * 1971-04-12 1973-10-30 J Wasilewski Energy compensated enthalpimeter for process analysis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992000589A1 (en) * 1990-06-25 1992-01-09 Maxtor Corporation Read/write control for disk drive

Also Published As

Publication number Publication date
FR2427596A1 (en) 1979-12-28
DE2912578B2 (en) 1980-07-24
DE2912578A1 (en) 1979-12-13
CH636446A5 (en) 1983-05-31
DE2912578C3 (en) 1981-04-23

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)