71913

Sodium polytungstate

purum p.a., for the preparation of heavy liquid, ≥85% WO₃ basis

• Synonyme(s) : Sodium metatungstate, hexa-Sodium tungstate (W₁₂)
• Formule linéaire : 3Na₂WO₄ · 9WO₃ · H₂O
• Numéro CAS: 12141-67-2
• Poids moléculaire : 2986.01
• NACRES: NA.75
• PubChem Substance ID: 329763629
• UNSPSC Code: 12352207
• EC Number: 412-770-9
• MDL number: MFCD00061466

Propriétés

• grade: purum p.a.
• Quality Segment: 100
• assay: ≥85% WO₃ basis
• form: powder or crystals
• quality: for the preparation of heavy liquid
• technique(s): titration: suitable
• color: white to off-white
• pH: 3 (20 °C)
• density: 3.1 g/cm³ at 20 °C (saturated aqueous solution)
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: room temp
• SMILES string: [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.O=[W](=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O.[O-][W]([O-])(=O)=O
• InChI: 1S/6Na.39O.12W/q6*+1;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;6*-1;;;;;;;;;;;;
• InChI key: AZCSOJKJFMWYCX-UHFFFAOYSA-N

Description

Application

Sodium polytungstate (SPT) is widely used to produce heavy liquid for sink /float analysis (gravity separation) and density gradient centrifugation due to its very high solubility in water.

Other Notes

A new medium for density-gradient centrifugation, the density can be adjusted to up to 3.1 g/mlcitationcitation

A new medium for density-gradient centrifugation, the density can be adjusted to up to 3.1 g/ml

Informations sur la sécurité

• pictograms: GHS05,GHS07
• signalword: Danger
• hcodes: H302,H318,H412
• pcodes: P264 - P273 - P280 - P301 + P312 - P305 + P351 + P338 - P501
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1
• Classe de stockage: 11 - Combustible Solids
• wgk: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves