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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, Pharmaceutical, Aluminium Potassium Sulphate, Fragrance & Flavor chemicals in India. Mubychem Group has several manufacturing facilities spread across Western India. |
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Potash Alum BP Manufacturers Aluminium Potassium Sulphate BP Potassium Alum
USP
CAS No.: 7784-24-9. Molecular Weight: 474.4. Chemical
Formula: AlK(SO4)2,12H2O
CAS No.: Anhydrous 10043-67-1. Molecular Weight: 258.21. Chemical Formula:
AlK(SO4)2
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Potassium Alum; Door Delivery
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Potash
Alum
MSDS
Potash Alum
Technical & Pure Crystals, Potassium Alum, Aluminium Potassium
Sulphate
Also IP BP Ph. Eur. USP ACS AR LR FCC Food Grades
Alum BP
Potash Alum BPAluminium Potassium Sulphate BP
AlK(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.
Potassium Alum USP
Aluminum Potassium Sulfate
USP
AlK(SO4)2·12H2O 474.39
Sulfuric 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
metals— the limit is 0.002%.
Iron—
Add 5 drops of potassium ferro-cyanide TS to
20 mL of a solution (1 in 150): no blue color is
produced immediately.
Aluminum Potassium Sulfate FCC
Potassium Alum FCCAluminum Potassium Sulfate FCC or Potassium Alum FCC
Potassium Alum FCC
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%.
Aluminum Potassium Sulfate Dodecahydrate ACS
Potash Alum 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%
Potash Alum BP; Potassium Alum USP; Potassium Alum manufacturers;
Aluminum Potassium Sulfate USP, Aluminium Potassium Sulphate BP
Potash Alum Manufacturers; Aluminium
Potassium Sulphate 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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