Tricalcium phosphate

CAS Number
7758-87-4
EC Number
231-840-8
E Number
E341
FEMA Number
FEMA 3081
Abbreviation
TCP

What is Tricalcium phosphate?

Tricalcium phosphate (CAS 7758-87-4), also known as TCP and approved as E341iii in food applications, is an inorganic calcium salt.

Where is Tricalcium phosphate used?

  • Food and nutraceutical manufacturing: anti-caking agent preventing clumping in table salt, spice blends and protein supplements
  • Pharmaceutical formulations: tablet excipient, calcium supplement active and pH buffer supporting dosage form performance
  • Animal feed: phosphorus and calcium source supporting bone development in livestock and poultry
  • Construction and industrial materials: flame retardant additive and filler component
  • It functions as a flow aid and mineral supplement depending on the application.

Commercial specifications

  • Bulk quantities standard for feed and industrial buyers; smaller packaging for pharmaceutical and food-grade procurement

Other Names (Synonyms)

tricalcium orthophosphate|tertiary calcium phosphate|E341iii|calcium phosphate tribasic|calcium orthophosphate|Ca3(PO4)2|bone phosphate of lime|TCP

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What are the physical properties of Tricalcium phosphate?

Melting Point 1670 °C
Density 3.14 g/cm³
Appearance white powder
Color White
Odor Odorless
Form aqueous suspension
Water Solubility 0.1 g/L (25 ºC)
Refractive Index 1.63
pH 6-8 (50g/l, H2O, 20°C) suspension
Log P -2.15

How is Tricalcium phosphate classified and handled safely? Learn More

Danger
GHS05· Corrosive

Hazard Statements

H318 Causes serious eye damage

Precautionary Statements

P280 Wear protective gloves/protective clothing/eye protection/face protection.
P317 Get emergency medical help.
P264+P265 Wash … thoroughly after handling.
P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Which trade and regulatory codes apply to Tricalcium phosphate?

HS Code 2835 26 00
Storage Class 11 - Combustible Solids
WGK (Germany) 3
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