GB222836A - - Google Patents

Info

Publication number
GB222836A
GB222836A GB17722/24A GB1772224A GB222836A GB 222836 A GB222836 A GB 222836A GB 17722/24 A GB17722/24 A GB 17722/24A GB 1772224 A GB1772224 A GB 1772224A GB 222836 A GB222836 A GB 222836A
Authority
GB
United Kingdom
Prior art keywords
acid
sulphuric acid
hydrofluosilicic
acids
fluoride
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
Application number
GB17722/24A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB222836A publication Critical patent/GB222836A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00Silicon; Compounds thereof
    • C01B33/08Compounds containing halogen
    • C01B33/10Compounds containing silicon, fluorine, and other elements
    • C01B33/103Fluosilicic acid; Salts thereof

Abstract

Hydrofluosilicic acid is produced by the interaction of sulphuric acid, fluorspar and silicon fluoride. In an example, molecular proportions of sulphuric acid and calcium fluoride are heated in a closed vat and a molecular proportion of silicon fluoride then introduced. After the reaction the mixture is removed and the precipitated calcium sulphate separated from the solution of hydrofluosilicic acid by filtration. The Specification as open to inspection under Sect. 91 (3) (a) states that by using the appropriate components other complex hydrofluoric acids such as hydrofluoboric acid may be similarly prepared; also, acids other than sulphuric acid may be employed. This subject-matter does not appear in the Specification as accepted.
GB17722/24A 1923-10-01 1924-07-24 Expired GB222836A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE222836T 1923-10-01

Publications (1)

Publication Number Publication Date
GB222836A true GB222836A (en) 1925-04-23

Family

ID=31893467

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17722/24A Expired GB222836A (en) 1923-10-01 1924-07-24

Country Status (1)

Country Link
GB (1) GB222836A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5754289A (en) * 1995-12-30 1998-05-19 Kyoto Dai-Ichi Kagaku Co., Ltd. Raman scattered light measuring apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5754289A (en) * 1995-12-30 1998-05-19 Kyoto Dai-Ichi Kagaku Co., Ltd. Raman scattered light measuring apparatus

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