Aluminium Potassium Sulphate or Aluminum Potassium Sulfate or Potash Alum or Potassium Alum Pure BP Ph Eur USP FCC Food Grade AR ACS Reagent Manufacturers |
Muby chemicals, is the flagship company in Mubychem Group, established in 1976, It has several manufacturing units in its wings, making Inorganic Chemicals including Aluminium Potassium Sulphate or Aluminum Potassium Sulfate or Potash Alum or Potassium Alum, Pharmaceutical Excipients & Flavour Chemicals in India. Mubychem Group has manufacturing facilities spread across Western India and sales purchase agents in several countries. The associated manufacturing units are accredited with certifications like FDA cGMP and GLP Approval, ISO-9001 ISO-14001, ISO/IEC 17025, ISO-22000, FSSC 22000, ISO 45001, Certification, "REACH" registration, Kosher, Halal & HACCP Certification. |
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CAS Number 7784-24-9 & 10043-67-1
Potassium Alum USP Grade Specifications
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 [CAS 7784-24-9].
Anhydrous 258.21 [CAS 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.
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.
Alum BP Ph Eur Grade Specifications
Potash Alum BP
Aluminium Potassium Sulphate BP
AlK(SO4)2,12H2O__474.4__CAS 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 FCC Food Grade Specifications
Potassium Alum FCC
Aluminum Potassium Sulfate FCC or Potassium Alum FCC
Potassium Alum FCC
AlK(SO4)212H2O 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 25C 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 AR Analytical Reagent Grade Specifications
Potash Alum ACS
AlK(SO4)2 . 12H2O
Formula Weight 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%
Aluminium Potassium Sulphate or Aluminum Potassium Sulfate or Potash Alum or Potassium Alum Pure BP Ph Eur USP FCC Food Grade AR ACS Reagent Grade Manufacturers:
Muby Chemicals & Associated Cos
BANDEALI BUILDING, CHINCHBUNDER, MUMBAI 400009, INDIA.
TEL: 91-22-23728264. Gujarat & Mumbai India.
info(At the Rate i.e. @)mubychem(dot)com
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Last updated
12-sep-22
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