Sodium acetate trihydrate , GR,99.5% , 6131-90-4

Synonym(s):
Acetic Acid Sodium Salt;Acetic acid sodium salt trihydrate;Sodium acetate trihydrate

CAS NO.：6131-90-4

Empirical Formula: C2H9NaO5

Molecular Weight: 136.08

MDL number: MFCD00071557

EINECS: 612-115-9

PRODUCT Properties

• Melting point: 58 °C
• Boiling point: >400°C
• Density: 1,45 g/cm³
• Flash point: >250°C
• storage temp.: Store at +5°C to +30°C.
• solubility: H₂O: 3 M at 20 °C, clear, colorless
• form: Solid
• color: White
• Odor: Slight acetic acid
• PH Range: 8.5 - 10 at 408 g/l at 25 °C
• PH: 7.5-9.0 (25℃, 50mg/mL in H2O)
• pka: 4.76 (acetic acid)(at 25℃)
• Water Solubility: 762 g/L (20 ºC)
• λmax: λ: 260 nm Amax: ≤0.01; λ: 280 nm Amax: ≤0.01
• Merck: 14,8571
• BRN: 3732037
• Stability: Stable. Incompatible with strong oxidizing agents, halogens.
• InChIKey: AYRVGWHSXIMRAB-UHFFFAOYSA-M
• LogP: -0.285 (est)

Description and Uses

Sodium acetate trihydrate is used in various applications. It is used as a buffer of a pH range in between to 4.0 to 6.0. It is also used in the purification and precipitation of nucleic acids and in protein crystallization. It is used as a mordant dyeing, as a pickling agent in chrome tanning, as a neutralizer in waste streams containing sulfuric acid, in the textile industry and as a photoresist while using aniline dyes. It plays an important role to retard vulcanization of chloroprene in synthetic rubber production. It is a precursor to prepare ester from alkyl halide. Other applications are in photography, as an additive to food, in purification of glucose, in preservation of meat, in tanning, and as a dehydrating agent. In analytical chemistry it is used to prepare buffer solution.

Safety

• Hazard Codes: Xi
• Risk Statements: 36/37/38
• Safety Statements: 24/25-36-26
• WGK Germany: 1
• RTECS: AJ4580000
• Autoignition Temperature: 607 °C
• TSCA: Yes
• HS Code: 29152200
• Toxicity: LD50 orally in Rabbit: 3530 mg/kg LD50 dermal Rabbit > 10000 mg/kg