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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 Thiosulfate, Calcium Sulfate, Pharmaceutical, Fragrance & Flavor chemicals in India. Mubychem Group has several manufacturing facilities spread across Western India. |
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Calcium Sulphate BP Grade, Dihydrate
Buy Calcium Sulfate; Calcium Sulphate; Door Delivery
Calcium Sulfate
Technical & Pure Calcium Sulfate Dihydrate; Gypsum.
Also IP BP Ph. Eur. USP ACS AR LR FCC Food Grades
Calcium Sulphate as per British Pharmacopoeia 2009
Calcium Sulphate Dihydrate BP
Calcium Sulphate BP Dihydrate
CaSO4,2H2O ... 172.2
Action and useExcipient.
DEFINITION
Content
98.0 per cent to 102.0 per cent of CaSO4,2H2O
i.e. Calcium Sulphate Dihydrate or Calcium Sulfate Dihydrate.
CHARACTERS
Appearance
White or almost white fine powder.
Solubility
Very slightly soluble in water, practically
insoluble in ethanol (96 per cent).
IDENTIFICATION
Loss on ignition.
Solution S gives reaction of sulphates.
Solution S gives reaction of calcium.
TESTS
Solution S
Dissolve 1.0 g in 50 ml of a 10 per cent
V/V solution of hydrochloric acid R by heating at 50°C for 5 min. Allow to
cool.
Acidity or alkalinity
Shake 1.5 g with 15 ml of carbon dioxide-free water
for 5 min. Allow to stand for 5 min and
filter. To 10 ml of the filtrate add 0.1 ml of phenolphthalein solution
and 0.25 ml of 0.01 M sodium hydroxide
. The solution is red.
Add 0.30 ml of 0.01 M hydrochloric acid
. The solution is
colourless. Add 0.2 ml of methyl red solution.
The solution is reddish-orange.
Chlorides
Maximum
300 ppm.
Shake 0.5 g with 15 ml of water R
for 5 min. Allow to stand for 15 min and filter. Dilute 5 ml of
the filtrate to 15 ml with water.
Arsenic
Maximum
10 ppm, determined on 5 ml of solution S.
Iron
Maximum
100 ppm.
To 0.25 g add a mixture of 5
ml of hydrochloric acid R and 20 ml of water R
. Heat to boiling, cool
and filter.
Heavy metals
Maximum
20 ppm.
To 2.5 g add a mixture of 2
ml of hydrochloric acid R and 15 ml of water R
. Heat to boiling. Cool and then add 0.5 ml of
phenolphthalein
solution R .
Cautiously add concentrated ammonia until
the colour changes to pink. Add 0.5 ml of glacial acetic acid R
and dilute to 25 ml with water
R .
Filter. 12 ml of the filtrate complies with test A. Prepare the reference
solution using lead standard solution (2 ppm Pb).
Loss on ignition
18.0 per cent to 22.0 per cent, determined on 1.000 g by ignition to
constant mass at 800 ± 50 °C.
ASSAY
Dissolve 0.150 g in 120 ml
of water. Carry out the complex o metric
titration of calcium.
1 ml of 0.1 M sodium
edetate is equivalent to 17.22 mg of CaSO4,2H2O.
Calcium Sulphate BP Grade or
Calcium Sulphate BP 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
21 October, 2011
Calcium Sulphate BP Grade; Calcium Sulphate BP Manufacturers Calcium Sulfate USP Calcium Sulfate FCC; Calcium Sulphate Food Grade Calcium Sulfate ACS
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