Trihydrate Sodum Acetate
Molecular formula: CH3COONa-3H2O
Molecular weight: 136.08
Properties: Three hydrated sodium acetate is a colorless, odorless crystals. Easily weathered in the air, water and soluble in ethanol, micro-soluble in vinegar concentrate. 1.45 share, the melting point of 58 ℃.
Uses: Sodium acetate is a kind of chemical raw materials used in printing and dyeing, pharmaceutical, chemical reagents and industrial catalysts, additives, filled with PPD and anti-corrosion agent preservation.
Specification of officinal crystal sodium acetate
Content(CH3COONa-3H2O)% | ≥99.5 |
Clarity test | Qualified |
PH value | 7.5-9.0 |
Chlorid(CI)% | ≤0.001 |
Sulfate(SO4)% | ≤0.005 |
Phosphate(PO4)% | ≤0.0005 |
Magnesium(Mg)% | ≤0.001 |
Calcium(Ca)% | ≤0.025 |
Ferrum(Fe)% | ≤0.0003 |
Arsenic(As)% | ≤0.0002 |
Heavy metal (base on Pb) % | ≤0.001 |
Oxidate | Qualified |
Insoluble substance in water% | ≤0.005 |
Specification of edible crystal sodium acetate
Content% | 99-101 |
Free alkali% | ≤0.12 |
Kali salt % | ≤0.01 |
Heavy metal (base on Pb)% | ≤0.0005 |
Arsenic salt% | ≤0.0001 |
Free water % | ≤1 |
Specification of commercial crystal sodium acetate
content% | ≥58-60 |
Insoluble substance in water% | ≤0.04 |
Free alkali% | ≤0.03 |
Chlorid(CI)% | ≤0.04 |
Ferrium(Fe)% | ≤0.002 |
Specification of chemical pure trihydrate sodium acetate
Name | Top grade pure | Analytical pure | Chemical pure |
Content(CH3COONa-3H2O) | ≥99.5 | ≥99.0 | ≥98.0 |
PH(50g/125) | 7.5-9.0 | 7.5-9.0 | 7.5-9.0 |
Clarity test | Qualified | Qualified | Qualified |
Insoluble substance in water% | ≤0.002 | ≤0.002 | ≤0.002 |
Chlorid(CI)% | ≤0.0003 | ≤0.001 | ≤0.003 |
Sulfate(SO4)% | ≤0.002 | ≤0.005 | ≤0.005 |
Phosphate(PO4)% | ≤0.0002 | ≤0.0002 | ≤0.0005 |
Aluminum(AI)% | ≤0.0005 | ≤0.0005 | ≤0.001 |
Kalium(K)% | ≤0.002 |
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Calcium(Ca)% | ≤0.001 | ≤0.002 | ≤0.005 |
Ferrum(Fe)% | ≤0.0002 | ≤0.0002 | ≤0.0005 |
Copper(Cu)% | ≤0.0005 | ≤0.0005 | ≤0.001 |
Lead(Pb)% | ≤0.0005 | ≤0.0005 | ≤0.001 |
Reduction potassium permanganate substance (base on CHOOH) % | ≤0.005 | ≤0.01 | ≤0.02 |
In the food processing industry, sodium acetate can be used as a buffer of flavoring agent and meat preservative. Control the sticky phenomenon caused by fungi in bread production and use it for grain preservation with high water content; This product can also be used as textile printing and dyeing auxiliary (mordant), buffer for photographic industry, chemical reagent and pharmaceutical intermediate chemical book; It can also be used as raw materials for the synthesis of organic chemical products such as furan, acrylic acid, acetate, chloroacetic acid, acetic anhydride and cinnamic acid. In addition, because the aqueous solution of sodium acetate has some special thermal properties than pure water, it can be used in hand heaters and bottle heaters; It is also used in hemodialysis for the treatment of renal failure.
IUPAC
sodium;acetate;trihydrate
SMILES
CC(=O)[O-].O.O.O.[Na+]