Sodium acetate trihydrate

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Industry Category:	Chemicals/Carboxylic Acid Derivatives/Carboxylates
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Molecular formula: CH₃COONa·3H₂O
Molecular weight: 136.08
Properties: Sodium acetate trihydrate is a colorless, odorless crystal. It is easily efflorescent in air, soluble in water and ethanol, and slightly soluble in acetic acid. Specific gravity 1.45, melting point 58°C.
Uses: Sodium acetate is a chemical raw material used in printing and dyeing, pharmaceuticals, chemical reagents, industrial catalysts, auxiliaries, additives, and preservatives. It is also widely used as an antifreeze in the coal industry and as a deicing agent for major roads and airports in winter.
Quality indicators for chemical reagent sodium acetate trihydrate

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Name	Guaranteed Reagent	Analytical Reagent	Chemical Pure
Content (CH₃COONa·3H₂O)%	≥99.5	≥99.0	≥98.0
pH (50g/125°C) (5% aqueous solution)	7.5-9.0	7.5-9.0	7.5-9.0
Clarity test	Qualified	Qualified	Qualified
Water-insoluble matter%	≤0.002	≤0.002	≤0.002
Chloride (Cl)%	≤0.0003	≤0.001	≤0.003
Sulfate (SO₄)%	≤0.002	≤0.005	≤極.005
Phosphate (PO₄)%	≤0.0002	≤0.0002	≤0.0005
Aluminum (Al)%	≤0.0005	≤0.0005	≤0.001
Potassium (K)%	≤0.002
Calcium (Ca)%	≤0.001	≤0.002	≤0.005
Iron (Fe)%	≤0.0002	≤0.0002	≤0.0005
Copper (Cu)%	≤0.0005	≤0.0005	≤0.001
Lead (Pb)%	≤0.0005	≤0.0005	≤0.001
Reducing permanganate substances (HCOOH)%	≤0.005	≤0.01	≤0.02

Quality indicators for pharmaceutical sodium acetate trihydrate

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Content (CH₃COONa·3H₂O)%	≥99.5
pH (50g/125°C) (5% aqueous solution)	7.5-9.0
Clarity test	Qualified
Water-insoluble matter%	≤0.005
Chloride (Cl)%	≤0.001
Sulfate (SO₄)%	≤0.005
Phosphate (PO₄)%	≤0.0005
Magnesium (Mg)%	≤0.001
Calcium (Ca)%	≤0.025
Iron (Fe)%	≤0.0003
Lead (Pb)%	≤0.001
Arsenic (As)%	≤0.0002
Readily oxidizable substances%	Qualified