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Merck
CN

31648

Sodium phosphotungstate tribasic hydrate

puriss. p.a.

Synonym(s):

Phosphotungstic acid trisodium salt hydrate, Tungstophosphoric acid trisodium salt

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About This Item

Linear Formula:
Na3[P(W3O10)4] · aq
CAS Number:
Molecular Weight:
2946.00 (anhydrous basis)
UNSPSC Code:
12352202
PubChem Substance ID:
EC Number:
234-716-1
MDL number:
Form:
fine crystals
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grade

puriss. p.a.

form

fine crystals

loss

6-9% loss on ignition

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤100 mg/kg

cation traces

Fe: ≤50 mg/kg, K: ≤200 mg/kg, NH4+: ≤20 mg/kg, Pb: ≤50 mg/kg

storage temp.

2-8°C

SMILES string

O.[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=[W](=O)=O.O=[W](=O)=O.[O-]P([O-])([O-])=O

InChI

1S/3Na.H3O4P.H2O.36O.12W/c;;;1-5(2,3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h;;;(H3,1,2,3,4);1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/q3*+1;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/p-3

InChI key

XJAYTBQTWJVCCZ-UHFFFAOYSA-K

General description

Sodium phosphotungstate tribasic hydrate is the hydrated trisodium salt of phosphotungstic acid.

Application

Sodium phosphotungstate tribasic hydrate was employed as stain in transmission electron microscopic (TEM) studies. It may be used in the preparation of negative stains for use in microfluidic-dialysis conditioning module, which comprises the main unit of electron microscopy (EM) grids.


pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



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