Description
Tricalcium Phosphate
Tricalcium phosphate (sometimes abbreviated TCP) is a calcium salt
of phosphoric acid with the chemical formula Ca3(PO4)2. It is also
known as tribasic calcium phosphate and bone phosphate of lime
(BPL). Calcium phosphate is one of the main combustion products of
bone (see bone ash). Calcium phosphate is also commonly derived
from inorganic sources such as mineral rock.
Chemical name: Tricalcium Phosphate
Molecular formula: *0CaO*3P2O*-H2O
Molecular weight: -
CAS NO: ********4
Character: It is a mixture composed by different calcium
phosphate. Its main component is *0CaO*3P2O*-H2O. Molecular weight
is ***4.*4. It is white amorphous powder, odorless, stabilizing in
air . Relative density is 3.*8.
Usage: In food industry, it is used as anticoagulant
,nutritional supplement(calcium intensifier), PH regulator and
buffering agent, the additives in powder milk, candy, pudding and
so on.
Packaging: It is packed with plastic bag as inner layer, and
a compound plastic woven bag as the outer layer. The net weight of
each bag is *5kg.
Storage and Transport: It should be stored in a dry and
ventilating warehouse.
Specification GB*********0 FCC, ***7
Content(As Ca), w/% *4.***0.0 *4.***0.0
Arsenic, mg/kg no more than 3 3
Fluorine, mg/kg no more than *5 *5
Heavy Metals(As Pb), mg/kg no more than *0 *0
Lead, mg/kg no more than 2 2
Loss On Ignition, w/% *0.0 *0.0
Clarity According to the Test *-
Uses
Tricalcium phosphate is used in powdered spices as an anticaking
agent. It is also found in baby powder.
Calcium phosphate is an important raw material for the production
of phosphoric acid and fertilizers, for example in the Odda
process. Phosphate ore quality and quantity is often specified as
percent BPL (bone phosphate of lime), where 1% BPL is equivalent to
0.**8% P2O5.
Calcium phosphate is also a raising agent (food additive) E**1. As
a mineral salt found in rocks and bones, it is used in cheese
products.
It is also used as a nutritional supplement[*2] and occurs
naturally in cow milk[citation needed], although the most common
and economical forms for supplementation are calcium carbonate
(which should be taken with food) and calcium citrate (which can be
taken without food). There is some debate about the different
bioavailabilities of the different calcium salts.
It is commonly used in porcelain and dental powders, and medically
as an antacid or calcium supplement, although calcium carbonate is
more common in this regard.
It can be used as a tissue replacement for repairing bony defects
when autogenous bone graft is not feasible or possible. It may be
used alone or in combination with a biodegradable, resorbable
polymer such as polyglycolic acid. It may also be combined with
autologous materials for a bone graft.
Porous beta-Tricalcium phosphate scaffolds are employed as drug
carrier systems for local drug delivery in bone.
Another practical application of the compound is its use in gene
transfection. The calcium ions can make a cell competent to allow
exogenous genes to enter the cell by diffusion. A heat shock
afterwards then invokes the cell to repair itself. This is a quick
and easy method for transfection, albeit a rather inefficient
one.
Calcium triphosphate is used to remove fluoride from water in water
filtration systems.
