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Mubychem Group, established in 1976, is the pioneer manufacturer of Zinc Chloride, Ammonium Chloride, Calcium Chloride, Potassium Chloride, Sodium Acetate, Sodium Thiosulphate, Calcium Phosphate, Pharmaceutical, Fragrance & Flavor chemicals in India. Mubychem Group has several manufacturing facilities spread across Western India. |
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Monobasic Calcium Phosphate
Dibasic Calcium Phosphate Manufacturers Tribasic Calcium Phosphate
Monobasic Calcium Phosphate Manufacturers, Tribasic Calcium Phosphate Manufacturers
Monobasic Calcium Phosphate Anhydrous CAS No.:7758-23-8,
Molecular Weight: 234.05, Chemical Formula: Ca(H2PO4)2
Dibasic Calcium Phosphate Dihydrate CAS No.:65-85-0, Molecular Weight:
172.1, Chemical Formula: CaHPO4-2H2O
Tribasic Calcium Phosphate CAS No.:7758-87-4 or 1306-06-5--, Molecular
Weight: 310.18--, Chemical Formula: Ca5(OH)(PO4)3
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Calcium Phosphate
Monobasic, Dibasic, Tribasic; Technical & Pure
Also IP BP Ph. Eur. USP ACS AR LR FCC Food Grades
Calcium Hydrogen Phosphate BP
Dibasic Calcium Phosphate BP
Calcium Hydrogen Phosphate DihydrateCaHPO4,2H2O 172.1 7789-77-7
DEFINITION
Content
Dibasic Calcium Phosphate 98.0 per cent to 105.0 per cent.
Appearance
White, crystalline powder.
Solubility
Practically insoluble in cold water and in alcohol. It dissolves in dilute hydrochloric acid and in dilute nitric acid.
IDENTIFICATION
A. Dissolve 0.1 g in a mixture of 5 ml of
dilute nitric acid and 5 ml of water. The solution gives reaction of phosphates.
B. 5 mg gives reaction of calcium.
C. It complies with the limits of the assay.
Solution S
Dissolve 2.5 g in 20 ml of dilute hydrochloric acid, filter if necessary and add dilute ammonia until a precipitate is formed. Add just sufficient dilute hydrochloric acid to dissolve the precipitate and dilute to 50 ml with distilled water.
Carbonates
Shake 0.5 g with 5 ml of carbon dioxide-free water and add 1 ml of hydrochloric acid. No effervescence is produced.
Chlorides
Maximum 330 ppm.
Dissolve 0.5 g in a mixture of 1 ml of nitric acid and 10 ml of water and dilute to 50 ml with water. 15 ml of the solution complies with the limit test for chlorides.
Fluorides
Maximum 100 ppm.
Sulphates
Maximum 0.5 per cent.
Arsenic
Maximum 10 ppm.
Barium
To 10 ml of solution S add 0.5 ml of dilute sulphuric acid. After 15 min, any opalescence in the solution is not more intense than that in a mixture of 10 ml of solution S and 0.5 ml of distilled water.
Iron
Maximum 400 ppm.
Heavy metals
Maximum 40 ppm.
1 ml of 0.1 M sodium edetate is equivalent to 17.21 mg of CaHPO4,2H2O.
Dibasic Calcium Phosphate USP-NF
Dibasic Calcium Phosphate
CaHPO4 136.06
Phosphoric acid, calcium salt (1:1).
Calcium phosphate (1:1) [7757-93-9].
Dihydrate 172.09 [7789-77-7].
Dibasic Calcium Phosphate is anhydrous or contains two molecules of water of hydration. It contains not less than 98.0 percent and not more than 105.0 percent of anhydrous dibasic calcium phosphate (CaHPO4) or of dibasic calcium phosphate dihydrate (CaHPO4·2H2O).
Labeling— Label it to indicate whether it is anhydrous or the dihydrate.
Identification—
A: Dissolve about 100 mg by warming with a mixture of 5 mL of 3 N
hydrochloric acid and 5 mL of water, add 2.5 mL of 6 N ammonium hydroxide
drop wise, with shaking, and then add 5 mL of ammonium oxalate TS: a white
precipitate is formed.
B: To 10 mL of a warm solution (1 in 100) in a slight excess of
nitric acid add 10 mL of ammonium molybdate TS: a yellow precipitate of
ammonium phosphomolybdate is formed.
Loss on ignition— Ignite it at 800 to 825 to constant weight: anhydrous Dibasic Calcium
Phosphate loses between 6.6% and 8.5% of its weight, and the dihydrate form
of Dibasic Calcium Phosphate loses between 24.5% and 26.5% of its weight.
Carbonate— Mix 1.0 g with 5 mL of water, and add 2 mL of hydrochloric
acid: no effervescence occurs.
Chloride— To 0.30 g add 10 mL of water and 2 mL of nitric acid, and warm
gently, if necessary, until no more dissolves. Dilute to 25 mL, filter, if
necessary, and add 1 mL of silver nitrate. TS: the turbidity does not exceed
that produced by 1.0 mL of 0.020 N hydrochloric acid (0.25%).
Sulfate— Dissolve 1.0 g in the smallest possible amount of 3 N
hydrochloric acid, dilute with water to 100 mL, and filter, if necessary. To
20 mL of the filtrate add 1 mL of barium chloride. TS: the turbidity does
not exceed that produced by 1.0 mL of 0.020 N sulfuric acid (0.5%).
Arsenic—The limit is 3 µg per g.
Barium— Heat 0.50 g with 10 mL of water, and add hydrochloric acid
drop wise, stirring after each addition, until no more dissolves. Filter, and
to the filtrate add 2 mL of potassium sulfate TS: no turbidity is produced
within 10 minutes.
Heavy metals—: the limit is 0.003%.
Limit of acid-insoluble substances— not more than 0.2% of
acid-insoluble substances is found.
Limit of fluoride— [NOTE—Prepare and store all solutions in plastic
containers.]: the limit is 0.005%.
Calcium Phosphate, Dibasic FCC
Dicalcium Phosphate
CaHPO4 Formula wt, anhydrous 136.06
CaHPO4·2H2O Formula wt, dihydrate 172.09
INS: 341(ii) CAS: anhydrous [7757-93-9]
CAS: dihydrate [7789-77-7]
DESCRIPTION
Calcium Phosphate, Dibasic, occurs as a white powder. It is anhydrous or
contains two molecules of water of hydration. It is stable in air. It is
insoluble in alcohol, is practically insoluble in water, but is readily
soluble in dilute hydrochloric and nitric acids.
Function: Leavening
agent; dough conditioner; nutrient; yeast food.
REQUIREMENTS
Labeling: Indicate whether it is anhydrous or the dihydrate.
Identification:
A. Dissolve about 100 mg of sample by warming it with a mixture of 5 mL
of 2.7 N hydrochloric acid and 5 mL of water. Add 2.5 mL of 6 N
ammonium hydroxide, drop-wise, with shaking, and then add 5 mL of
ammonium oxalate TS. A white precipitate forms.
B. Add 10 mL of ammonium molybdate TS to 10 mL of a warm 1:100 aqueous
solution in a slight excess of nitric acid. A yellow precipitate of ammonium
phosphomolybdate forms.
Assay
Anhydrous or Dihydrate: Not less than 97.0% and not more
than 105.0% Dibasic Calcium Phosphate.
Arsenic: Not more than 3 mg/kg.
Fluoride: Not more than 0.005%.
Lead: Not more than 2 mg/kg.
Loss on Ignition Anhydrous: Between 7.0% and 8.5%;
Dihydrate:
Between 24.5% and 26.5%.
Tribasic Calcium Phosphate BP
Calcium Phosphate BP7758-23-8
DEFINITION
Calcium phosphate consists of a mixture of calcium phosphates. It contains not less than 35.0 per cent and not more than the equivalent of 40.0 per cent of Ca (Ar 40.08).
CHARACTERS
A white or almost white powder, practically insoluble in water. It
dissolves in dilute hydrochloric acid and in dilute nitric acid.
IDENTIFICATION
A. Dissolve 0.1 g in 5 ml of a 25 per cent V/V solution of
nitric acid R. The solution gives reaction (b) of phosphates (2.3.1).
B. It gives reaction (b) of calcium
(2.3.1). Filter before adding potassium ferrocyanide solution R.
C. It complies with the limits of
the assay.
TESTS
Solution S
Dissolve 2.50 g in 20 ml of
dilute hydrochloric acid. If the
solution is not clear, filter it. Add dilute ammonia drop-wise until
a precipitate is formed. Dissolve the precipitate by adding dilute
hydrochloric acid and dilute to 50 ml with distilled water.
Chlorides
Dissolve 0.22 g in a mixture of 1 ml of
nitric acid and 10 ml of
water and dilute to 100 ml with water. 15 ml of the solution
complies with the limit test for chlorides (0.15 per cent).
Fluorides
Not more than 75 ppm of F, determined potentiometrically (2.2.36,
Method I) using a fluoride-selective indicator electrode and a
silver-silver chloride reference electrode.
Sulphates
Dilute 1 ml of solution S to 25 ml with
distilled water 15 ml of
the solution complies with the limit test for sulphates (0.5 per cent).
Arsenic
5 ml of solution S complies with limit test A for arsenic (4 ppm).
Iron
Dilute 0.5 ml of solution S to 10 ml with
water R. The solution
complies with the limit test for iron (400 ppm).
Heavy metals
Dilute 13 ml of solution S to 20 ml with
water. 12 ml of the
solution complies with limit test A for heavy metals (30 ppm).
Acid-insoluble matter
Dissolve 5.0 g in a mixture of 10 ml of
hydrochloric acid and 30
ml of water. Filter, wash the residue with water and dry to
constant mass at 100°C to 105 °C. The residue weighs not more than 10 mg
(0.2 per cent).
Loss on ignition
Not more than 8.0 per cent,
determined on 1.000 g by ignition at 800 °C for 30 min
Tribasic Calcium Phosphate USP
Tribasic Calcium PhosphateCa5(OH)(PO4)3 502.31
Calcium hydroxide phosphate (Ca5(OH)(PO4)3).
Calcium hydroxide phosphate (Ca5(OH)(PO4)3) [12167-74-7].
Tribasic Calcium Phosphate consists of a variable mixture of calcium phosphates having the approximate composition 10CaO·3P2O5·H2O. It contains not less than 34.0 percent and not more than 40.0 percent of calcium (Ca).
Identification—
A: To a warm solution in a slight excess of nitric acid add ammonium
molybdate TS: a yellow precipitate is formed.
B: It responds to the flame test for
Calcium.
Loss on ignition— Ignite it at 800 for 30 minutes: it loses not more than 8.0% of its weight.
Water-soluble substances— Digest 2 g with 100 mL of water on a steam
bath for 30 minutes, cool, add sufficient water to restore the original
volume, stir well, and filter. Evaporate 50 mL of the filtrate in a tarred
porcelain dish on a steam bath to dryness, and dry the residue at 120 to
constant weight: the weight of the residue does not exceed 5 mg (0.5%).
Acid-insoluble substances— If an insoluble residue remains in the test
for Carbonate, boil the solution, filter, wash the residue well with
hot water until the last washing is free from chloride, and ignite the
residue to constant weight: the weight of the residue does not exceed 4 mg
(0.2%).
Carbonate— Mix 2 g with 20 mL of water, and add 3 N hydrochloric acid,
drop wise, to effect solution: no effervescence is produced.
Chloride— Dissolve 500 mg in 25 mL of 2 N nitric acid, and add 1 mL of
silver nitrate TS: the turbidity does not exceed that produced by 1.0 mL of
0.020 N hydrochloric acid (0.14%).
Sulfate— Dissolve 500 mg in the smallest possible amount of 3 N
hydrochloric acid, dilute with water to 100 mL, filter, if necessary, and to
25 mL of the filtrate add 1 mL of barium chloride TS: the turbidity does not
exceed that produced by 1.0 mL of 0.020 N sulfuric acid (0.8%).
Arsenic — The limit is 3 ppm.
Barium— Mix 500 mg with 10 mL of water, heat, add hydrochloric acid
drop-wise until solution is effected, and then add 2 drops of the acid in
excess. Filter, and add to the filtrate 1 mL of potassium sulfate TS: no
turbidity appears within 15 minutes.
Dibasic salt and calcium oxide— Weigh accurately about 1.5 g, and
dissolve by warming with 25.0 mL of 1 N hydrochloric acid VS. Cool, and
slowly titrate the excess of 1 N hydrochloric acid, while agitating
constantly, with 0.1 N sodium hydroxide VS to a pH of 4.0, determined
potentiometrically. Not less than 13.0 mL and not more than 14.3 mL of 1 N
hydrochloric acid is consumed for each g of salt, calculated on the ignited
basis.
Limit of fluoride— [NOTE—Prepare and store all solutions in plastic
containers.]: The limit is 0.0075%.
Limit of nitrate— Mix 200 mg with 5 mL of water, and add just sufficient
hydrochloric acid to effect solution. Dilute with water to 10 mL, add 0.20
mL of indigo carmine TS, then add, with stirring, 10 mL of sulfuric acid:
the blue color persists for not less than 5 minutes.
Calcium Phosphate, Tribasic FCC
Tricalcium Phosphate; Precipitated Calcium Phosphate
Calcium Hydroxyapatite
Ca3(PO4)2 Formula wt 310.18
Ca5OH(PO4)3 Formula wt 502.31
Ca10(OH)2(PO4)6 Formula wt 1004.61
INS: 341(iii) CAS: [7758-87-4]
CAS: [1306-06-5]
CAS: [62974-97-4]
DESCRIPTION
Calcium Phosphate, Tribasic, occurs as a white powder that is stable in
air. It consists of a variable mixture of calcium phosphates. It is
insoluble in alcohol and almost insoluble in water, but it dissolves readily
in dilute hydrochloric and nitric acids.
Function: Ant caking
agent; buffer; nutrient; clouding agent.
REQUIREMENTS
Identification
A. Add ammonium molybdate TS to a warm solution of sample in a slight
excess of nitric acid. A yellow precipitate forms.
B. Dissolve about 100 mg of sample by warming it with 5 mL of 2.7 N hydrochloric acid and 5 mL of water; while shaking, add 1 mL of 6 N ammonium hydroxide, drop-wise and then add 5 mL of ammonium oxalate TS. A
white precipitate forms.
Assay: Not less than
34.0% and not more than 40.0% of calcium (Ca).
Arsenic: Not more than 3 mg/kg.
Fluoride: Not more than 0.0075%.
Lead: Not more than 2 mg/kg.
Loss on Ignition: Not more than 10.0%.
Monobasic Calcium Phosphate FCC
Monocalcium Phosphate; Calcium Biphosphate; Acid Calcium PhosphateCa(H2PO4)2 Formula wt, anhydrous 234.05
Ca(H2PO4)2·H2O Formula wt, monohydrate 252.07
CAS: anhydrous [7758-23-8]
INS: 341(i) CAS: monohydrate [10031-30-8]
DESCRIPTION
Calcium Phosphate, Monobasic, occurs as white crystals or granules or as
a granular powder. It is anhydrous or contains one molecule of water of
hydration, but because of its deliquescent nature, more than the calculated
amount of water may be present. It is sparingly soluble in water and is
insoluble in alcohol.
Function: Buffer;
dough conditioner; firming agent; leavening agent; nutrient; yeast food;
sequestrant.
REQUIREMENTS
Labeling: Indicate the state of hydration.
Identification:
A. Dissolve 100 mg of sample by warming it in a mixture of 2 mL of 2.7 N hydrochloric acid and 8 mL of water. Add 5 mL of ammonium oxalate
TS. A white precipitate forms.
B. Add ammonium molybdate TS to a warm solution of sample in a slight excess
of nitric acid. A yellow precipitate of ammonium phosphomolybdate forms.
Assay: Anhydrous:
Not less than 16.8% and not more than 18.3% of Ca; Monohydrate: Not
less than 15.9% and not more than 17.7% of Ca.
Arsenic: Not more than 3 mg/kg.
Fluoride: Not more than 0.005%.
Lead: Not more than 2 mg/kg.
Loss on Drying: Monohydrate: Not more than 1%.
Loss on Ignition Anhydrous: Between 14.0% and 15.5%.
Dicalcium
Phosphate Dibasic Calcium Phosphate manufacturers
Tricalcium Phosphate Tribasic Calcium Phosphate Manufacturers
Monocalcium Phosphate Monobasic Calcium Phosphate Manufacturers:
MUBY CHEMICALS
S-8, SARIFA MANSION, 2ND FLANK ROAD,
CHINCHBUNDER, MUMBAI 400009, INDIA
TEL: (OFFICE) 91-22-23770100,
23726950, 23774610, 23723564. FAX: 91-22-23728264
e-mail:
info@mubychem.com
Cell Call
to Anmol: +91-9821870100
USA & Canadian Customers may Call
773-829-5811
Copyright and Usual Disclaimer is
Applicable.
Last updated
15 December, 2011
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