GB996401A - Crystalline hydrated phosphates - Google Patents

Crystalline hydrated phosphates

Info

Publication number
GB996401A
GB996401A GB3123961A GB3123961A GB996401A GB 996401 A GB996401 A GB 996401A GB 3123961 A GB3123961 A GB 3123961A GB 3123961 A GB3123961 A GB 3123961A GB 996401 A GB996401 A GB 996401A
Authority
GB
United Kingdom
Prior art keywords
sodium lauryl
lauryl sulphate
crystals
produced
hydrated
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
GB3123961A
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.)
Diversey Ltd
Original Assignee
Diversey UK 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 Diversey UK Ltd filed Critical Diversey UK Ltd
Publication of GB996401A publication Critical patent/GB996401A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C305/00—Esters of sulfuric acids
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/30—Alkali metal phosphates
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • C11D1/146—Sulfuric acid esters
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/06—Phosphates, including polyphosphates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/395—Bleaching agents
    • C11D3/3953—Inorganic bleaching agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Inorganic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • General Chemical & Material Sciences (AREA)
  • Detergent Compositions (AREA)

Abstract

A water-soluble hydrated crystalline product in the form of crystals of a hydrated trisodium phosphate containing a higher alkyl sulphuric acid ester or a salt thereof present within the crystalline structure of said crystals. The salt is preferably sodium lauryl sulphate and the hydrated trisodium phosphate may be chlorinated. The crystalline product is produced by crystallization from a hot solution containing hydrated trisodium phosphate and sodium lauryl sulphate or disodium phosphate, sodium hydroxide, sodium hypochlorite and sodium lauryl sulphate, depending on the product required. The shape of the crystal thus formed depends on the proportion of sodium lauryl sulphate and the mode of crystallization. Rod-shaped crystals having a hexagonal cross-section and a longitudinally extending tubular passageway therein are produced when 0.001-0.10% by weight of sodium lauryl sulphate is added to the hot solution which is subsequently allowed to cool undisturbed. Needle-shaped crystals having a hexagonal cross-section are produced when 0.001-0.3% by weight of sodium lauryl sulphate is added to the hot solution which is then agitated during cooling. Needle-shaped hydrated crystals containing a large proportion of sodium lauryl sulphate can be produced by crystallizing trisodium phosphate dodecahydrate and sodium lauryl sulphate in the presence of no more moisture than is required to produce the water of crystallization. Potassium permanganate may be incorporated in any of the above crystals as colouring matter.ALSO:A water-soluble hydrated crystalline product for use in detergent compositions comprises crystals of a hydrated trisodium phosphate containing a higher alkyl sulphuric acid ester or a salt thereof present within the crystalline structure of said crystals. The salt is preferably sodium lauryl sulphate and the hydrated trisodium phosphate may be chlorinated. The shape of the crystals depends on the proportion of sodium lauryl sulphate included and the mode of crystallization. Rod-shaped crystals having a hexagonal cross-section and a longitudinally extending tubular passageway therein are produced when 0.001-0.10% by weight of sodium lauryl sulphate is added to the hot solution of phosphate which is subsequently allowed to cool undisturbed. Needle-shaped crystals having a hexagonal cross-section are produced when 0.001-0.3% by weight of sodium lauryl sulphate is added to the hot solution which is then agitated during cooling. Needle-shaped crystals containing a larger proportion of sodium lauryl sulphate can be produced by crystallizing trisodium phosphate dodecahydrate and sodium lauryl sulphate in the presence of no more moisture than is required to produce the water of crystallization. Potassium permanganate may be incorporated in any of the above crystals as colouring matter.
GB3123961A 1960-12-02 1961-08-30 Crystalline hydrated phosphates Expired GB996401A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7341760A 1960-12-02 1960-12-02

Publications (1)

Publication Number Publication Date
GB996401A true GB996401A (en) 1965-06-30

Family

ID=22113584

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3123961A Expired GB996401A (en) 1960-12-02 1961-08-30 Crystalline hydrated phosphates

Country Status (1)

Country Link
GB (1) GB996401A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007056439A1 (en) * 2005-11-08 2007-05-18 Collegium Pharmaceutical, Inc. Salts of methylene blue and its derivatives

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007056439A1 (en) * 2005-11-08 2007-05-18 Collegium Pharmaceutical, Inc. Salts of methylene blue and its derivatives

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