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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, Potassium Hydroxide Pellets, Pharmaceutical, Fragrance & Flavor chemicals in India. Mubychem Group has several manufacturing facilities spread across Western India. |
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Potassium Hydroxide Pellets Manufacturers Potassium Hydroxide USP Potassium Hydroxide BP
CAS No.: 1310-58-3,
Molecular Weight: 56.11,
Chemical Formula: KOH
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Potassium Hydroxide BP
Caustic PotashKOH -- 56.11 -- 1310-58-3
DEFINITION
Potassium hydroxide contains not less than 85.0 per cent and not
more than the equivalent of 100.5 per cent of total alkali, calculated
as KOH.
CHARACTERS
White, crystalline, hard masses, supplied as sticks, pellets or
irregularly shaped pieces, deliquescent in air, hygroscopic, absorbing
carbon dioxide, very soluble in water, freely soluble in alcohol.
IDENTIFICATION
A. Dissolve 0.1 g in 10 ml of
water (this solution is
used for identification test B). Dilute 1 ml of the solution to 100 ml
with water. The pH of this solution is not less than 10.5.
B. 1 ml of the initial solution
prepared in identification test A gives
reaction of potassium.
TESTS
Solution S1
Dissolve 2.5 g in 10 ml of water. Carefully add 2 ml of
nitric acid, with cooling, and dilute to
25 ml with dilute nitric acid.
Solution S2
Dissolve 10 g in 15 ml of
distilled water. Carefully add 12
ml of hydrochloric acid, with
cooling, and dilute to 50 ml with dilute hydrochloric acid.
Appearance of solution
Dissolve 5 g in carbon dioxide-free water
and dilute to 50 ml
with the same solvent. The solution is clear and
colourless.
Carbonates
Not
more than 2.0 per cent, calculated as K2CO3.
Chlorides
Dilute 10 ml of solution S1 to 15 ml with water. The solution
complies with the limit test for chlorides (50 ppm).
Phosphates
Dilute 5 ml of solution S1 to 100 ml with water. The solution
complies with the limit test for phosphates (20 ppm).
Sulphates
15 ml of solution S2 complies with the limit test for
sulphates (50 ppm).
Aluminium
If intended for use in the manufacture of
hem dialysis solutions, it complies with
the test for aluminium. Dissolve 20
g in 100 ml of water and add 10 ml of acetate buffer solution pH 6.0. The solution complies
with the limit test for aluminium (0.2
ppm). Use as the reference solution a
mixture of 2 ml of aluminium
standard solution (2
ppm Al), 10 ml of acetate buffer solution pH 6.0
and
98 ml of water. To prepare the blank use a mixture of 10 ml of acetate buffer solution pH 6.0 R and
100 ml
of water.
Iron
Dilute 5 ml of solution S2 to 10 ml with
water R. The
solution complies with the limit test for
iron (10 ppm).
Sodium
Not more than 1.0 per cent of Na, determined by atomic absorption
spectrometry.
Heavy metals
Dilute 10 ml of solution S2 to 20 ml with water. 12 ml of the
solution complies with limit test A for heavy metals (10
ppm). Prepare the standard using lead
standard solution (1
ppm Pb).
Potassium Hydroxide USP NF
Potassium HydroxideKOH 56.11
Potassium hydroxide.
Potassium hydroxide [1310-58-3].
Potassium Hydroxide contains not less than 85.0 percent of total alkali, calculated as KOH, including not more than 3.5 percent of K2CO3.
Identification—
A solution (1 in 25)
responds to the tests for Potassium.
Insoluble substances— Dissolve 1 g in 20 mL
of water: the solution is complete, clear, and colorless.
Heavy metals— Dissolve 0.67 g in a mixture of 5 mL of water and 7
mL of 3 N hydrochloric acid. Heat to boiling,
cool, and dilute with water to 25 mL: the
limit is 0.003%.
Potassium Hydroxide FCC
Caustic Potash
KOH Formula wt 56.11
INS: 525 CAS: [1310-58-3]
DESCRIPTION
Potassium Hydroxide occurs as white or nearly white pellets, flakes,
sticks, fused masses, or other forms. Upon exposure to air, it readily
absorbs carbon dioxide and moisture, and it deliquesces. One gram
dissolves in 1 mL of water, in about 3
mL of alcohol, and in about 2.5
mL of glycerin. It is very soluble in
boiling alcohol.
Function: pH control.
REQUIREMENTS
Identification: A 1:25 aqueous solution gives positive tests for Potassium.
Assay: Not less than 85.0% and not more than 100.5% of total
alkali, calculated as KOH.
Carbonate (as K2CO3): Not more than
3.5%.
Insoluble Substances: Passes test.
Lead: Not more than 2 mg/kg.
Mercury: Not more than 0.1 mg/kg.
ACS Specifications
American Chemical Society
Potassium Hydroxide
ACS
KOHFormula Wt 56.11
CAS Number 1310-58-3
NOTE. Reagent potassium hydroxide usually contains 10-15% water.
REQUIREMENTS
Assay and potassium carbonate: 85% KOH and 2.0% K2CO3
MAXIMUM ALLOWABLE
Chloride (Cl) ............................... 0.01%
Nitrogen compounds (as N)
........ 0.001%
Phosphate (PO4) ........................ 5 ppm
Sulfate (SO4)
.............................. 0.003%
Ammonium hydroxide precipitate . 0.02%
Heavy metals (as Ag)
.................. 0.001%
Iron (Fe) ..................................... 0.001%
Nickel (Ni)
................................. 0.001%
Sodium (Na) .............................. 0.05%
Potassium Hydroxide BP
Potassium Hydroxide USP
Potassium Hydroxide
Manufacturers
Potassium Hydroxide Pellets 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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