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GB1314094A - Mallinckrodt chemical works - Google Patents

Mallinckrodt chemical works

Info

Publication number
GB1314094A
GB1314094A GB1314094DA GB1314094A GB 1314094 A GB1314094 A GB 1314094A GB 1314094D A GB1314094D A GB 1314094DA GB 1314094 A GB1314094 A GB 1314094A
Authority
GB
United Kingdom
Prior art keywords
alkaline earth
ions
solution
hcl
maintained
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
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.)
Mallinckrodt Chemical Works
Original Assignee
Mallinckrodt Chemical Works
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 Mallinckrodt Chemical Works filed Critical Mallinckrodt Chemical Works
Publication of GB1314094A publication Critical patent/GB1314094A/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
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/455—Phosphates containing halogen
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/74—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing arsenic, antimony or bismuth
    • C09K11/75—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing arsenic, antimony or bismuth containing antimony
    • C09K11/76—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing arsenic, antimony or bismuth containing antimony also containing phosphorus and halogen, e.g. halophosphates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Luminescent Compositions (AREA)

Abstract

1314094 Luminescent materials MALLINCKRODT CHEMICAL WORKS 24 April 1970 19896/70 Heading C4S An activated alkaline earth haloapatite compound is prepared by simultaneously adding to a stirred aqueous precipitation medium a first solution containing alkaline earth, Cl, and Sb and/or Mn ions and a second solution containing F and phosphate ions, the solutions being added in amounts which maintain stoichiometric ratios of the ions, the temperature being maintained at not more than 56‹ C. which prevents the formation of #-Ca 3 PO 4 : some alkaline earth metal may be replaced by Cd. A solution prepared by dissolving Sb 2 O 3 , CdCO 3 and/or SrCO 3 , CaCl 2 and Mn(NO 3 ) 2 in HCl and a solution of NH 4 hydrogen phosphate, NH 4 OH and NH 4 F were metered into a vessel containing water or NH 4 OH. The pH value was maintained between 5 and 9. The precipitate was resuspended in water, HCl or NH 4 Cl heated to 70-95‹ C. and dried at 125‹ C. The product may be fired at 1050-1150‹ C.
GB1314094D 1970-04-24 1970-04-24 Mallinckrodt chemical works Expired GB1314094A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1989670 1970-04-24

Publications (1)

Publication Number Publication Date
GB1314094A true GB1314094A (en) 1973-04-18

Family

ID=10136969

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1314094D Expired GB1314094A (en) 1970-04-24 1970-04-24 Mallinckrodt chemical works

Country Status (1)

Country Link
GB (1) GB1314094A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157378A (en) * 1973-01-11 1979-06-05 Colgate Palmolive Company Process for preparing fluorapatite

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157378A (en) * 1973-01-11 1979-06-05 Colgate Palmolive Company Process for preparing fluorapatite

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees