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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/08—Compounds containing halogen
- C01B33/10—Compounds containing silicon, fluorine, and other elements
- C01B33/103—Fluosilicic 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.
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)
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 |
-
1924
- 1924-07-24 GB GB17722/24A patent/GB222836A/en not_active Expired
Cited By (1)
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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