<br /> 线性分子式: Na2WO4 · 2H2O CAS号: 10213-10-2 分子量: 329.85 EC 号: 236-743-4 MDL编号: MFCD00149190 PubChem化学物质编号: 57652396 NACRES: NA.25">
BioUltra
100
≥99.0% (T)
crystals
insoluble matter, passes filter test≤0.001% total nitrogen (N)≤0.1% free alkali (as NaOH)
9.5-11.5 (25 °C, 1 M in H2O)
698 °C (lit.)
H2O: 1 M at 20 °C, clear, colorless
chloride (Cl-): ≤50 mg/kgsulfate (SO42-): ≤100 mg/kg
As: ≤0.5 mg/kgCa: ≤10 mg/kgCd: ≤5 mg/kgCo: ≤5 mg/kgCr: ≤5 mg/kgCu: ≤5 mg/kgFe: ≤5 mg/kgK: ≤50 mg/kgMg: ≤5 mg/kgMn: ≤5 mg/kgNi: ≤5 mg/kgPb: ≤10 mg/kgZn: ≤5 mg/kg
1 M in H2O
λ: 260 nm Amax: ≤0.120λ: 280 nm Amax: ≤0.035
O.O.[Na+].[Na+].[O-][W]([O-])(=O)=O
1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;
WPZFLQRLSGVIAA-UHFFFAOYSA-N
Warning
Acute Tox. 4 Oral
13 - Non Combustible Solids
WGK 2
dust mask type N95 (US), Eyeshields, Gloves