Aluminium hydroxide, dried gel

SKU:
TC550M
CAS Number : 21645-51-2
Molecular Formula : Al(OH)₃
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Product Identifier

Product Name Aluminium hydroxide, dried gel
Product Code TC550M
Molecular weight 78
CAS No. 21645-51-2

Technical Specification

Appearance (JP) White, amorphous powder
Appearance (EP, BP) White or almost white, amorphous powder.
Solubility (JP) Practically insoluble in water, in ethanol (95) and in diethyl ether.
Solubility (EP, BP) Practically insoluble in water. It dissolves in dilute mineral acids and in solutions of alkali hydroxides.
pH (4% in water at 25°C) : (USP) NMT 10.00
Identification (JP) The supernatant liquid responds to the qualitative tests for aluminum salt.
Identification A (USP) Matches with the standard pattern
Identification B (USP) The solution responds to the tests for Aluminium
Appearance of solution (BP, EP) Solution S is not more opalescent than reference suspension II and not more intensely coloured than reference solution GY6
Acidity or alkalinity (JP) The supernatant liquid is neutral
Chloride (JP) <= 0.284%
Chloride (EP, BP) <= 1.00%
Chloride (USP) <= 0.85%
Sulfate (JP) <= 0.480%
Sulfate (BP, EP) <= 1.00%
Sulfate (USP) <= 0.60%
Nitrate (JP) No brown-colored ring is produced at the zone of contact.
Heavy metals (JP) <= 0.0010%
Heavy metals (BP, USP) <=0.0060%
Arsenic (JP) <= 0.0005%
Arsenic (BP, EP) <= 0.0004%
Arsenic (USP) <= 0.0008%
Acid-consuming capacity (JP) The volume of 0.1M hydrochloric acid VS consumed is not less than 250 mL/g of dried aluminum hydroxide gel.
Alkaline impurities (BP, EP) Any pink colour disappears on the addition of 0.3 mL of 0.1M hydrochloric acid
Acid-neutralizing capacity (USP) Min. 25.0 mEq/g
Neutralizing capacity (EP, BP) NMT 35.0 mL of 0.1M sodium hydroxide is required
Microbial contamination : TAMC (BP, EP) NMT 1000.00 cfu/gm
Microbial contamination : TYMC (BP, EP) NMT 100.00 cfu/gm
Assay (Zinc acetate Titration, as Al2O3): JP NLT 50.00%
Assay (Zinc sulfate titration, as Al(OH)3: USP NLT 76.50%
Assay (EDTA titration, Al2O3) : EP, BP 47.00 -60.00

Storage and Shelf Life

Storage Store below 30°C away from bright light.
Shelf life 48 months.
Usage Use before expiry date given on the product label.
CAS Number : 21645-51-2
Molecular Formula : Al(OH)₃
More Information
Product Name Aluminium hydroxide, dried gel
SKU TC550M
CAS No 21645-51-2
EC No. 244-492-7
Molecular formula Al(OH)₃
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