GB239252A - Manufacture of colloidal sulphur - Google Patents

Manufacture of colloidal sulphur

Info

Publication number
GB239252A
GB239252A GB689122A GB689122A GB239252A GB 239252 A GB239252 A GB 239252A GB 689122 A GB689122 A GB 689122A GB 689122 A GB689122 A GB 689122A GB 239252 A GB239252 A GB 239252A
Authority
GB
United Kingdom
Prior art keywords
sulphur
polysulphide
alkali
solution
glue
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
GB689122A
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.)
Burt Boulton & Haywood Ltd
Original Assignee
Burt Boulton & Haywood Ltd
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 Burt Boulton & Haywood Ltd filed Critical Burt Boulton & Haywood Ltd
Priority to GB689122A priority Critical patent/GB239252A/en
Publication of GB239252A publication Critical patent/GB239252A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/10—Finely divided sulfur, e.g. sublimed sulfur, flowers of sulfur

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

Colloidal sulphur is prepared by adding a protective colloid to a polysulphide solution, preferably an alkali or ammonium polysulphide, acidifying the solution, and filtering and washing the precipitated sulphur. Suitable protective colloids are gelatine, glue, gum, or waste sulphite-cellulose liquor. An electrolyte, such as sodium chloride, may be added to ensure rapid separation of the sulphur. The sulphuretted hydrogen evolved may be absorbed in alkali and employed for the preparation of further polysulphide. According to an example, sulphur is dissolved in caustic soda by warming, glue added to the cooled solution, and sulphuric acid slowly run in while stirring. The sulphur is separated by decantation and filtration and washed with water until free from alkali sulphate. Reference has been directed by the Comptroller to Specification 177,103.
GB689122A 1922-03-08 1922-03-08 Manufacture of colloidal sulphur Expired GB239252A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB689122A GB239252A (en) 1922-03-08 1922-03-08 Manufacture of colloidal sulphur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB689122A GB239252A (en) 1922-03-08 1922-03-08 Manufacture of colloidal sulphur

Publications (1)

Publication Number Publication Date
GB239252A true GB239252A (en) 1925-09-17

Family

ID=9822693

Family Applications (1)

Application Number Title Priority Date Filing Date
GB689122A Expired GB239252A (en) 1922-03-08 1922-03-08 Manufacture of colloidal sulphur

Country Status (1)

Country Link
GB (1) GB239252A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2469433A (en) * 1945-09-04 1949-05-10 Dinsley Alfred Method of sequentially depositing reactive solutions to form an insecticide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2469433A (en) * 1945-09-04 1949-05-10 Dinsley Alfred Method of sequentially depositing reactive solutions to form an insecticide

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