71183

Acétate de sodium

anhydrous, BioUltra, suitable for luminescence, Molecular Biology, ≥99.0% (NT)

• Synonyme(s) : Acide acétique sodium salt
• Formule linéaire : CH₃COONa
• Numéro CAS: 127-09-3
• Poids moléculaire : 82.03
• NACRES: NA.25
• PubChem Substance ID: 57652226
• eCl@ss: 39021906
• UNSPSC Code: 12161700
• EC Number: 204-823-8
• MDL number: MFCD00012459
• Beilstein/REAXYS Number: 3595639

Propriétés

• grade: Molecular Biology
• Quality Segment: 200
• product line: BioUltra
• assay: ≥99.0% (NT)
• form: solid
• autoignition temp.: 1112 °F
• impurities: DNases, none detected, RNases, none detected, insoluble matter, passes filter test, phosphatases, none detected, proteases, none detected
• loss: ≤0.5% loss on drying, 150 °C
• pH: 8.5-10.0 (25 °C, 3 M in H₂O)
• pKa: 4.76 (acetic acid)
• mp: >300 °C (dec.) (lit.)
• solubility: H₂O: 3 M at 20 °C, clear, colorless
• anion traces: chloride (Cl^-): ≤20 mg/kg, phosphate (PO₄^3-): ≤5 mg/kg, sulfate (SO₄^2-): ≤20 mg/kg
• SMILES string: [Na+].CC([O-])=O
• cation traces: Al: ≤5 mg/kg, As: ≤0.1 mg/kg, Ba: ≤10 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤200 mg/kg, Li: ≤5 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Sr: ≤10 mg/kg, Zn: ≤5 mg/kg
• λ: 3 M in H₂O
• UV absorption: λ: 260 nm A_max: 0.03, λ: 280 nm A_max: 0.02
• suitability: suitable for luminescence
• InChI: 1S/C2H4O2.Na/c1-2(3)4;/h1H3,(H,3,4);/q;+1/p-1
• InChI key: VMHLLURERBWHNL-UHFFFAOYSA-M

Description

Application

Sodium acetate is suitable for use as a buffer in:

• protein crystallization
• staining of gels in protein gel, electrophoresis, neutralization buffer for chromatography
• the preparation of standard (acetylcholine chloride) for hestrin assay
• substrate screening characterization for microfluidic microbial fuel cell array

Biochem/physiol Actions

Sodium acetate anhydrous is commonly used in molecular biology applications. This serves as a buffering agent in the DNA digestion experiments by ensuring the reaction has optimum pH. In general sodium acetate is preferred in purification, precipitation, crystallization, and other applications which require tight control of elemental content. Sodium acetate is extensively used as a retardant in plastics manufacturing, as a mordant in dyeing, and in the tanning of leather.

Other Notes

Extraction buffer component in the large-scale phenol extraction of RNA (for mRNA isolation).

Informations sur la sécurité

• Classe de stockage: 11 - Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)