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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 Hydroxide, Pharmaceutical, Fragrance & Flavor chemicals in India. Mubychem Group has several manufacturing facilities spread across Western India. |
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Calcium Hydroxide BP Calcium Hydroxide USP Calcium Hydroxide Manufacturers
Synonyms:
Hydrated Lime; Slaked Lime
CAS No.: 1305-62-0;
Molecular Weight: 74.1;
Chemical Formula: Ca(OH)2
Buy Calcium Hydroxide or Hydrated Lime; Door Delivery
For MSDS Sheet Click Calcium Hydroxide MSDS
Calcium Hydroxide
Technical & Pure Slaked Lime, Hydrated Lime
Also IP BP Ph. Eur. USP ACS AR LR FCC Food Grades
British Pharmacopoeia
Calcium Hydroxide BP Ca(OH)2
Calcium Hydroxide BP British Pharmacopoeia
Ca(OH)2 ... 74.1
PreparationCalcium Hydroxide Solution
DEFINITION
Content
95.0 per cent to 100.5 per cent.
CHARACTERS
Appearance
White or almost white, fine powder.
Solubility
Practically insoluble in water.
IDENTIFICATION
A. To 0.80 g in a mortar, add 10 ml of water R
and 0.5 ml of phenolphthalein solution and mix. The suspension turns red.
On addition of 17.5 ml of 1 M hydrochloric acid , the suspension becomes
colourless without effervescing. The red colour occurs again when the mixture is
triturated for 1 min. On addition of a further 6 ml of 1 M hydrochloric acid
and triturating, the solution becomes colourless.
B. Dissolve about 0.1 g in dilute hydrochloric acid
and dilute to 10 ml with water . 5 ml of the solution give reaction
of calcium.
TESTS
Matter insoluble in hydrochloric acid
Maximum 0.5 per cent.
Dissolve
2.0 g in 30 ml of hydrochloric acid. Boil the solution and filter. Wash
the residue with hot water. The residue weighs a maximum of 10 mg.
Carbonates
Maximum 5.0
per cent of CaCO3.
Chlorides
Maximum 330
ppm.
Sulphates
Maximum 0.4
per cent.
Arsenic
Maximum 4
ppm.
Magnesium and alkali metals
Maximum 4.0
per cent calculated as sulphates.
Heavy
metals
Maximum 20
ppm.
ASSAY
To 1.500 g
in a mortar, add 20-30 ml of
water R and 0.5 ml of phenolphthalein solution. Titrate with 1
M hydrochloric acid by triturating the substance until the red colour
disappears. The final solution is used in the tests for carbonates.
1 ml of
1 M hydrochloric acid
is equivalent to 37.05 mg of Ca(OH)2.
Calcium Hydroxide USP Ca(OH)2
Calcium
Hydroxide; Lime
Ca(OH)2
74.09
Calcium
hydroxide [1305-62-0].
Calcium
Hydroxide contains not less than 95.0 percent and not more than 100.5 percent of
Ca(OH)2.
Packaging and storage Preserve in
tight containers.
Identification
A: When mixed with from three to
four times its weight of water, it forms a smooth magma. The clear, supernatant
from the magma is alkaline to litmus.
B: Mix 1 g with 20 mL of water,
and add sufficient 6 N acetic acid to effect solution: the resulting solution
responds to the tests for Calcium.
Limit of acid-insoluble substances Dissolve 2.0 g in 30 mL of 4 N hydrochloric acid, and heat to boiling.
Filter the mixture, wash the residue with hot water, and ignite: the weight of
the residue does not exceed 10 mg (0.5%).
Carbonate Mix 2 g with 50 mL of
water: the addition of an excess of 3 N hydrochloric acid to the mixture does
not cause more than a slight effervescence.
Heavy metals Dissolve 2.0 g in 20
mL of 3 N hydrochloric acid, and evaporate on a steam bath to dryness. Dissolve
the residue in 20 mL of water, and filter. Dilute the filtrate with water to 40
mL, and to 20 mL of the resulting solution add 1 mL of 0.1 N hydrochloric acid,
then add water to make 25 mL: the limit is 20 6g per g.
Limit of magnesium and alkali salts Dissolve 0.50 g in a mixture of 30 mL of water and 10 mL of 3 N hydrochloric
acid, and proceed as directed in the test for Magnesium and alkali salts under
Calcium Carbonate, beginning with heat the solution, and boil for
1 minute. The weight of the residue does not exceed 12 mg (4.8%).
Assay Transfer about 1.5 g of
Calcium Hydroxide, accurately weighed, to a beaker, and gradually add 30 mL of 3
N hydrochloric acid. When the solution is dissolved, transfer it to a 500-mL
volumetric flask, rinse the beaker thoroughly, adding the rinsing to the flask,
dilute with water to volume, and mix. Pipette 50 mL of the solution into a
suitable container, add 100 mL of water, 15 mL of 1 N sodium hydroxide, and 300
mg of hydroxy naphthol blue, and titrate with 0.05 M edentate disodium VS to a
blue endpoint. Each mL of 0.05 M edetate disodium is equivalent to 3.705 mg of
Ca(OH)2.
Calcium Hydroxide FCC
Slaked LimeCalcium Hydroxide
Ca(OH)2 Formula wt 74.10
INS: 526 CAS: [1305-62-0]
DESCRIPTION
Calcium
Hydroxide occurs as a white powder. One gram dissolves in 630 mL of water at
25°, and in 1300 mL of boiling water. It is soluble in glycerin and in a
saturated solution of sucrose but insoluble in alcohol.
Function: Buffer; neutralizing agent; firming agent.
REQUIREMENTS
Identification
A. Mix a
sample with from 3 to 4 times its weight of water. The sample forms a smooth
magma. The clear, supernatant liquid from the magma is alkaline to litmus.
B. Mix 1 g
of sample with 20 mL of water, and add sufficient glacial acetic acid to effect
solution. The resulting solution gives positive tests for Calcium.
Assay: Not less than 95.0% and not more
than 100.5% of Ca(OH)2.
Acid-Insoluble Substances: Not more
than 0.5%.
Arsenic: Not more than 3 mg/kg.
Carbonate: Passes test.
Fluoride: Not more than 0.005%.
Lead: Not more than 2 mg/kg.
Magnesium and Alkali Salts: Not
more than 4.8%.
Calcium Hydroxide ACS
Calcium HydroxideCa(OH)2
Formula Wt 74.09
CAS Number 1305-62-0
REQUIREMENTS
|
Assay |
95.0%
Ca(OH)2 and |
MAXIMUM ALLOWABLE
|
Insoluble in hydrochloric acid |
0.03% |
|
Chloride (Cl) |
0.03% |
|
Sulfur compounds (as SO4) |
0.1% |
|
Heavy metals (as Pb) |
0.003% |
|
Iron (Fe) |
0.05% |
|
Magnesium (Mg) |
0.5% |
|
Potassium (K) |
0.05% |
|
Sodium (Na) |
0.05% |
|
Strontium (Sr) |
0.05% |
Calcium Hydroxide BP
Calcium Hydroxide USP
Slaked Lime Manufacturers;
Hydrated Lime Manufacturers;
Calcium Hydroxide 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
----------------
Calcium Hydroxide BP Grade Calcium Hydroxide USP Grade Slaked-Lime Ca(OH)2 FCC; Food Grade-Slaked Lime Ca(OH)2 ACS
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