Basic information
- Name:
Tungstate(3-),tetracosa-m-oxododecaoxo[m12-[phosphato(3-)-kO:kO:kO:kO':kO':kO':kO'':kO'':kO'':kO''':kO''':kO''']]dodeca-, hydrogen, hydrate (1:3:?)
- Superlist Name:
- Phosphotungstic acid hydrate
- CAS No.:
12501-23-4
- Molecular Structure:
![Molecular Structure of 12501-23-4 (Tungstate(3-),tetracosa-m-oxododecaoxo[m12-[phosphato(3-)-kO:kO:kO:kO':kO':kO':kO'':kO'':kO'':kO''':kO''':kO''']]dodeca-, hydrogen, hydrate (1:3:?))](http://www.lookchem.com/300w/2010/0617/12501-23-4.jpg)
- Formula:
- H2O . x H . x O40 P W12
- Molecular Weight:
- 2898.07
- Synonyms:
- Tungstate(3-),tetracosa-m-oxododecaoxo[m12-[phosphato(3-)-O:O:O:O':O':O':O'':O'':O'':O''':O''':O''']]dodeca-,trihydrogen, hydrate (9CI); Tungsten hydroxide oxide phosphate(W12(OH)3O33(PO4)), hydrate; Tungstophosphoric acid (H3PW12O40), hydrate (8CI);Phosphoric acid, tungsten complex; Hydrogen phosphotungstate hydrate(H3PW12O40.xH2O); Phosphotungstic acid (H3PW12O40) hydrate
- EINECS:
- 235-087-6
- Density:
- g/cm3
- Melting Point:
- ~95 °C(lit.)
- Boiling Point:
- °Cat760mmHg
- Flash Point:
- °C
- Solubility:
- soluble
- Hazard Symbols:
- Risk Codes:
- R34
- Safety Description:
DetailsHazard Codes C Risk Statements 34 Safety Statements 26-36/37/39-45-24/25 RIDADR UN 3260 8/PG 3
WGK Germany 3
RTECS TH5650000
F 3-10-23 - Transport Information:
- UN 3260
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Chemistry
Molecular Structure of Phosphotungstic acid hydrate (CAS No.12501-23-4):
Molecular Formula: H3PO4.12(WO3).H2O
Molecular Weight: 2898.07
CAS No: 12501-23-4
H bond acceptors: 41
H bond donors: 5
Freely Rotating Bonds: 0
Polar Surface Area: 678.32 Å2
IUPAC Name: Phosphoric acid; Trioxotungsten; hydrate
Safety Profile
Hazard Symbols: 
C
Risk Codes: R34
R34:Causes burns.
Safety Description: S24/25
S24/25:Avoid contact with skin and eyes.
Transport Information: UN 3260
Specification
Phosphotungstic acid hydrate (CAS No.12501-23-4), its synonyms are Tungstophosphoric acid hydrate ; Dodecatungstophosphoric acid hydrate .