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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 Alum, Pharmaceutical, Fragrance & Flavor chemicals in India. Mubychem Group has several manufacturing facilities spread across Western India. |
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Potassium Alum USP, Alum BP.. Potassium Alum Manufacturers
Buy Potassium Alum
or Potash Alum; Door Delivery
For MSDS Sheet Click
MSDS Potassium Alum;
Aluminum Potassium Sulfate MSDS
CAS No.: 7784-24-9, Molecular Weight: 474.39, Chemical Formula: AlK(SO4)2.12H2O
Potash Alum
Technical & Pure Crystals.
Also IP BP Ph. Eur. USP ACS AR LR FCC Food Grades
Potassium Alum USP
AlK(SO4)2·12H2O 474.39Sulfuric acid, aluminum potassium salt (2:1:1), dodecahydrate.
Aluminum potassium sulfate (1:1:2) dodecahydrate [7784-24-9].
Anhydrous 258.21 [10043-67-1].
Potassium Alum contains not less than 99.0 percent and not more than 100.5 percent of AlK(SO4)2, calculated on the dried basis.
Packaging and storage Preserve in tight containers, and store at room temperature.
Identification
A: Add 1 N sodium
hydroxide drop wise to a solution of it (1 in 20): a precipitate is formed
that dissolves in an excess of the reagent. Ammonia is not evolved (distinction from Ammonium Alum).
B: Hold it in a
non-luminous flame: a violet color is imparted to the flame.
C: Add 10 mL of
sodium bitartrate TS to 5 mL of a saturated solution of it: a white,
crystalline precipitate is formed within 30 minutes.
D: A solution (1 in
20) responds to the tests for Aluminum and for Sulfate.
Loss on drying Transfer 2.0 g, in a tarred porcelain crucible, to a muffle furnace at 200.
Increase the temperature to 400 , and dry at 400 to constant weight. Cool in
a desiccator, and weigh: it loses between 43.0% and 46.0% of its weight.
Heavy metalsthe
limit is 0.002%.
Iron Add 5 drops
of potassium ferrocyanide TS to 20 mL of a solution (1 in 150): no blue
color is produced immediately.
Aluminum Potassium Sulfate; Potassium Alum FCC; Potash Alum
AlK(SO4)2·12H2O Formula wt
474.38
INS: 522 CAS: [7784-24-9]
DESCRIPTION
Aluminum Potassium Sulfate
occurs as large, transparent crystals or crystalline fragments, or as a
white crystalline powder. One gram dissolves in 7.5 mL of water at 25° and
in about 0.3 mL of boiling water. Its solutions are acid to litmus. It is
insoluble in alcohol, but is freely soluble in glycerin.
Function: Buffer;
neutralizing agent; firming agent.
REQUIREMENTS
Identification: A
1:20 aqueous solution gives positive tests for Aluminum, for Potassium, and for
Sulfate.
Assay: Not less than
99.5% and not more than 100.5% of AlK(SO4)2·12H2O.
Ammonium Salts: Passes test.
Fluoride: Not more
than 0.003%.
Lead: Not more than
3 mg/kg.
Selenium: Not more
than 0.003%.
Alum BP, Potash Alum
Aluminium Potassium SulphateAlK(SO4)2,12H2O__474.4__7784-24-9
DEFINITION
Content
99.0 per cent to 100.5 per
cent of AlK(SO4)2,12H2O.
CHARACTERS
Appearance
Granular powder or colourless,
transparent, crystalline masses.
Solubility
Freely soluble in water, very
soluble in boiling water, soluble in glycerol, practically insoluble in ethanol
(96 per cent).
IDENTIFICATION
A. Solution S (see Tests)
gives the reactions of sulphates.
B. Solution S gives the
reaction of aluminium.
C. Shake 10 ml of solution S
with 0.5 g of sodium bicarbonate R and filter. The filtrate gives reaction (a) of potassium.
TESTS
Solution S
Dissolve 2.5 g in
water R
and dilute to 50 ml with the same solvent.
Appearance of solution
Solution S is clear
and
colourless.
pH: 3.0 to 3.5.
Ammonium: Maximum 0.2
per cent.
Iron: Maximum 100 ppm.
Heavy metals: Maximum 20
ppm.
Aluminum Potassium Sulfate Dodecahydrate ACS
AlK(SO4)2 . 12H2O
Formula Wt 474.39
CAS Number 7784-24-9
REQUIREMENTS
Assay 98.0-102.0% AlK(SO4)2
. 12H2O
MAXIMUM ALLOWABLE
Insoluble matter ......... 0.005%
Chloride (Cl) ............. 5 ppm
Ammonium (NH4) ..... 0.005%
Heavy metals (as Pb) . 0.001%
Iron (Fe) ................... 0.001%
Sodium (Na) ............. 0.02%
Potassium Alum 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: 07 December, 2011.
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