72069

Sodium tungstate dihydrate

BioUltra, ≥99.0% (T)

• 동의어(들): Tungstic acid sodium salt dihydrate
• Linear Formula: Na₂WO₄ · 2H₂O
• CAS Number: 10213-10-2
• Molecular Weight: 329.85
• EC Number: 236-743-4
• MDL number: MFCD00149190
• UNSPSC 코드: 12352302
• PubChem Substance ID: 57652396
• NACRES: NA.25
• solubility: H₂O: 1 M at 20 °C, clear, colorless

속성

• Grade: reagent grade
• 제품 라인: BioUltra
• 분석: ≥99.0% (T)
• 양식: crystals
• 불순물: insoluble matter, passes filter test; ≤0.001% total nitrogen (N); ≤0.1% free alkali (as NaOH)
• pH: 9.5-11.5 (25 °C, 1 M in H₂O)
• mp: 698 °C (lit.)
• solubility: H₂O: 1 M at 20 °C, clear, colorless
• 음이온 미량물: chloride (Cl^-): ≤50 mg/kg; sulfate (SO₄^2-): ≤100 mg/kg
• 양이온 미량물: As: ≤0.5 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: ≤50 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Ni: ≤5 mg/kg; Pb: ≤10 mg/kg; Zn: ≤5 mg/kg
• λ: 1 M in H₂O
• UV 흡수: λ: 260 nm A_max: ≤0.120; λ: 280 nm A_max: ≤0.035
• SMILES string: O.O.[Na+].[Na+].[O-][W]([O-])(=O)=O
• InChI: 1S/2Na.2H2O.4O.W/h;;2*1H2;;;;;/q2*+1;;;;;2*-1;
• InChI key: WPZFLQRLSGVIAA-UHFFFAOYSA-N

설명

일반 설명

Sodium tungstate dihydrate is a sodium salt of tungstic acid, which occurs as white colorless crystals.

애플리케이션

Sodium tungstate dihydrate has been used in bioluminescence assays and to synthesize polycrystalline samples.

기타 정보

Stain in electron microscopy (nucleic acids, certain glycoproteins); Protein precipitant.

안전성 정보

• 픽토그램: GHS07
• 신호어: Warning
• 유해 및 위험 성명서: H302
• 예방조치 성명서: P264 - P270 - P301 + P312 - P501
• Hazard Classifications: Acute Tox. 4 Oral
• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 2
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable
• 개인 보호 장비: dust mask type N95 (US), Eyeshields, Gloves