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Calcium phosphate

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Calcium phosphate Basic information

Product Name:
Calcium phosphate
CAS:
7758-87-4
MF:
Ca3O8P2
MW:
310.18
EINECS:
231-840-8
Mol File:
7758-87-4.mol
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Calcium phosphate Chemical Properties

Melting point:
1670°C
Density 
3.14
FEMA 
3081 | TRICALCIUM PHOSPHATE
refractive index 
1.63
storage temp. 
2-8°C
solubility 
Practically insoluble in water. It dissolves in dilute hydrochloric acid and in dilute nitric acid.
form 
aqueous suspension
color 
White
PH
6-8 (50g/l, H2O, 20°C) suspension
Water Solubility 
0.1 g/L (25 ºC)
Merck 
13,1699
Solubility Product Constant (Ksp)
pKsp: 28.68
InChIKey
QORWJWZARLRLPR-UHFFFAOYSA-H
CAS DataBase Reference
7758-87-4(CAS DataBase Reference)
EPA Substance Registry System
Tricalcium phosphate (7758-87-4)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36-24/25-22
WGK Germany 
3
HS Code 
2835 26 00
Hazardous Substances Data
7758-87-4(Hazardous Substances Data)
Toxicity
LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rabbit > 2000 mg/kg

MSDS

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Calcium phosphate Usage And Synthesis

Description

Calcium Phosphate is the calcium salt of phosphoric acid with widely used applications. It occur abundantly in nature in several forms and are the principal minerals for the production of phosphate fertilizers and for a range of phosphorus compounds. For example, the tribasic variety (precipitated calcium phosphate), Ca3(PO4)2, is the principal inorganic constituent of bone ash. The acid salt Ca(H2PO4)2, produced by treating mineral phosphates with sulfuric acid, is employed as a plant food and stabilizer for plastics. It is a natural constituent of mammals, and it is a component of bone replacement transplants in much higher amounts with no toxicological problems.Calcium phosphates are the largest group of artificial bone graft substitutes. This is mainly due to their close resemblance to the mineral components of bone. This Product can be used as a countermeasure for exposure to strontium and radium radionuclides. Upon oral uptake, calcium phosphate competes for and blocks the absorption of radium (Ra-226) and strontium (Sr-90) in the gastrointestinal (GI) tract.

Chemical Properties

White or almost white powder.

Uses

Calcium Phosphate is a compound existing in several forms which include the monobasic, dibasic, and tribasic forms of calcium phos- phate. as calcium phosphate monobasic, also termed monocalcium phosphate, calcium biphosphate, and acid calcium phosphate, it is used as a leavening agent and acidulant. calcium phosphate diba- sic, also termed dicalcium phosphate dihydrate, is used as a dough conditioner and mineral supplement. calcium phosphate tribasic, also termed tricalcium phosphate and precipitated calcium phos- phate, is used as an anticaking agent, mineral supplement, and con- ditioning agent.

Uses

Calcium Phosphate is an anticaking agent and calcium source that is a white powder that is almost insoluble in water. It is used as an anticaking agent in table salt and dry vinegar. It is used as a source of calcium and phosphorus in cereals and desserts. It functions as a bleaching agent in flour and in lard, and prevents undesirable coloring and improves stability for frying. It is also termed tribasic calcium phosphate, tricalcium orthophosphate, calcium phosphate tribasic, and precipitated calcium phosphate.

Uses

manufacture of fertilizers, H3PO4 and P Compounds; manufacture of milk-glass, polishing and dental powders, porcelains, pottery; enameling; clarifying sugar syrups; in animal feeds; as noncaking agent; in the textile industry.

Uses

Tribasic calcium phosphate occurs in nature as minerals, oxydapatite, whitlockite, voelicherite, apatite, phosphorite. It has many industrial applications. Some are similar to the monobasic and dibasic salts. It is used in fertilizers, dental products, ceramics and polishing powder. Some other important applications are in plastics as a stabilizer; as an anticaking agent; as a nutrient supplement in cattle food; for clarifying sugar syrup; as a mordant in dyeing textiles; and as a buffer to control pH.

Preparation

Tribasic calcium phosphate is obtained from naturally occurring minerals for fertilizer applications. The compound may be prepared in the laboratory by the reaction of sodium phosphate with calcium chloride with excess of ammonia. Also, it can be prepared by treatment of calcium hydroxide with phosphoric acid:
2H3PO4 + 3Ca(OH)2 → Ca3(PO4)2 + 6H2O

Industrial uses

Calcium phosphate [Ca3(PO4)2] finds applications as a supplement for animal feed, as a fertiliser, in the manufacture of glass and in dental products.

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Calcium phosphateSupplierMore

Changshu New-Tech Chemicals Co., Ltd. Gold
Tel:
0512-52320508
Email:
zs_xinte@vip.163.com
Spectrum Chemical Manufacturing Corp. Gold
Tel:
021-67601398-809
Email:
marketing_china@spectrumchemical.com;
J & K SCIENTIFIC LTD.
Tel:
010-82848833- ;010-82848833-
Email:
jkinfo@jkchemical.com;market6@jkchemical.com
BeiJing Hwrk Chemicals Limted
Tel:
21-51691807-
Email:
peter.shi@hwrkchemical.com;
Adamas Reagent, Ltd.
Tel:
400-600-9262
Email:
bxy@titansci.com
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