GB404627A - Improvements in or relating to the manufacture of calcium hypochlorite - Google Patents

Improvements in or relating to the manufacture of calcium hypochlorite

Info

Publication number
GB404627A
GB404627A GB2013032A GB2013032A GB404627A GB 404627 A GB404627 A GB 404627A GB 2013032 A GB2013032 A GB 2013032A GB 2013032 A GB2013032 A GB 2013032A GB 404627 A GB404627 A GB 404627A
Authority
GB
United Kingdom
Prior art keywords
calcium hypochlorite
hypochlorite
lime
chlorinating
milk
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
GB2013032A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB2013032A priority Critical patent/GB404627A/en
Publication of GB404627A publication Critical patent/GB404627A/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
    • C01B11/00Oxides or oxyacids of halogens; Salts thereof
    • C01B11/04Hypochlorous acid
    • C01B11/06Hypochlorites
    • C01B11/064Hypochlorites of alkaline-earth metals

Abstract

Normal calcium hypochlorite in the form of easily filterable, tetragonal plates is obtained by producing hexagonal crystals of basic calcium hypochlorite in an aqueous medium, separating same, and chlorinating the crystals in the presence of additional water. The basic hypochlorite may be obtained by chlorinating milk of lime, or by adding a liquor containing calcium hypochlorite to milk of lime, followed if desired by chlorination. The liquor remaining after production of the normal hypochlorite may be employed in this latter process. The hexagonal crystals appear to consist of dibasic calcium hypochlorite, and are only produced in the presence of excess lime; their formation is preferably observed microscopically, but other methods of control may be employed. Specification 378,847 is referred to.
GB2013032A 1932-07-15 1932-07-15 Improvements in or relating to the manufacture of calcium hypochlorite Expired GB404627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2013032A GB404627A (en) 1932-07-15 1932-07-15 Improvements in or relating to the manufacture of calcium hypochlorite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2013032A GB404627A (en) 1932-07-15 1932-07-15 Improvements in or relating to the manufacture of calcium hypochlorite

Publications (1)

Publication Number Publication Date
GB404627A true GB404627A (en) 1934-01-15

Family

ID=10140857

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2013032A Expired GB404627A (en) 1932-07-15 1932-07-15 Improvements in or relating to the manufacture of calcium hypochlorite

Country Status (1)

Country Link
GB (1) GB404627A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2457838A1 (en) * 1979-05-29 1980-12-26 Toyo Soda Mfg Co Ltd STABLE CALCIUM HYPOCHLORITE COMPOSITION AND PREPARATION THEREOF
US4416864A (en) * 1982-09-30 1983-11-22 Olin Corporation Process for calcium hypochlorite

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2457838A1 (en) * 1979-05-29 1980-12-26 Toyo Soda Mfg Co Ltd STABLE CALCIUM HYPOCHLORITE COMPOSITION AND PREPARATION THEREOF
US4416864A (en) * 1982-09-30 1983-11-22 Olin Corporation Process for calcium hypochlorite

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