Sodium acetate trihydrate

SKU:
TC456M
CAS Number : 6131-90-4
Molecular Formula : C₂H₃O₂Na.3H₂O
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Product Code

Product Code TC456M

Product Description

Molecular weight 136.08
Molecular formula C2H3O2Na.3H2O
CAS No. 6131-90-4

Quality Control

Appearance (USP) Colorless, transparent crystals, or white, granular crystalline powder, or white flakes
Appearance (EP, BP) White or almost white, crystalline powder or colourless crystals
Appearance (JP, IP) Colorless crystals or a white crystalline powder.
Solubility (USP) Very soluble in water, soluble in alcohol
Solubility (EP, BP) Very soluble in water, soluble in ethanol (96%)
Solubility (JP) Very soluble in water, freely soluble in acetic acid (100%), soluble in ethanol (95%), and practically insoluble in diethyl ether
Solubility (IP) Very soluble in water, soluble in ethanol (95%)
Identification A : Sodium (USP) Meets the requirements
Identification: Acetate and sodium salt (JP) 10% solution in water responds to the qualitative test for acetate and sodium salt
Identification : (IP) 1 mL of 10% solution in water gives reaction (B) of acetate and reaction (A) of sodium salts
Identification A : Acetate (EP, BP) 1 mL of 10% solution gives reaction (b)of acetate
Identification B: Sodium (EP, BP) 1 mL of 10% solution gives reaction (a) of sodium
Identification B: Acetate (USP) Meets the requirements in test A
Identification C: Loss on drying (EP, BP) 39.00 - 40.50% (at 130°C to constant weight)
pH (3% in water) : (USP) 7.50 - 9.20
pH (5% in water) : (EP, BP, IP) 7.50 - 9.00
Appearance of solution (EP, BP, IP) 10% solution in water is clear and colorless
Clarity and color of solution (JP) 10% solution in water is clear and colorless
Acidity or alkalinity (JP) In the 5% solution add 3 drops of phenolphthalein TS : a red color develops or 1.0 mL of 0.01M HCl is added after cooling to 10°C : the red colour disappears
Chloride (EP, BP) <= 0.02%
Chloride (JP) <= 0.011%
Chloride (USP) <= 0.035%
Chloride (IP) <= 0.025%
Sulfates (EP, BP, IP) <= 0.02%
Sulfate (JP) <= 0.017%
Sulfate (USP) <= 0.005%
Insoluble matter (USP) <= 0.05%
Heavy metals (JP) <= 0.0010%
Heavy metals (IP) <= 0.00010%
Calcium and magnesium (USP) No turbidity is produced within 5 min.
Calcium and magnesium (EP, BP, IP) <= 0.0050% as Ca
Calcium and magnesium (JP) Complies
Arsenic (EP, BP, JP, IP) <= 0.0002%
Aluminium (IP) <= 0.00002%
Iron (EP, BP) <= 0.0010%
Iron (IP) <= 0.0020%
Reducing substances (IP) The pink color is not completely discharged
Reducing substances (EP, BP) The pink colour persists for at least 1 hr
Potassium (USP) No precipitate is formed
Potassium permanganate - reducing substance (JP) The red color of the solution does not disappear
Loss on drying (JP) 39.00 - 45.50% (at 80°C for 2 hr, then at 130°C for 2 hr)
Loss on drying (USP) 38.00 - 41.00% (at 120°C to constant weight)
Loss on drying (EP, BP, IP) 39.00 - 40.50% (at 130°C to constant weight)
Assay (NT, on dried basis) : (EP, BP, USP, IP) 99.00 - 101.00%
Assay (NT, on dried basis) : (JP) >= 99.50%

Storage and Shelf Life

Store below 30°C away from bright light.
Shelf life 48 months.
Use before expiry date given on the product label.
CAS Number : 6131-90-4
Molecular Formula : C₂H₃O₂Na.3H₂O
More Information
Product Name Sodium acetate trihydrate
SKU TC456M
CAS No 6131-90-4
EC No. 204-823-8
Molecular formula C₂H₃O₂Na.3H₂O
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