Phosphotungstic acid 44-hydrate

CAS NO.：12067-99-1
Empirical Formula: H6O80P2W24
Molecular Weight: 5760.11
MDL number: MFCD00041964
EINECS: 235-087-6
SAFETY DATA SHEET (SDS)
Update Date: 2024-10-30 18:52:02

What is Phosphotungstic acid 44-hydrate?

Chemical properties

white to pale yellow crystalline powder

The Uses of Phosphotungstic acid 44-hydrate

As reagent for alkaloids and many other nitrogen bases, for phenols, albumin, peptone, amino acids, uric acid, urea, blood, carbohydrates; as biological stain.

Safety Profile

Moderately toxic by ingestion. When heated to decomposition it emits toxic fumes of POx.

Properties of Phosphotungstic acid 44-hydrate

Melting point:	89℃ [HAW93]
RTECS	TH5650000
storage temp.	Inert atmosphere,2-8°C
solubility	very soluble in H2O; soluble in ethanol, ethyl ether
form	Powder
color	White to pale yellow
Water Solubility	practical insoluble
Merck	14,7364
Exposure limits	ACGIH: TWA 3 mg/m3
EPA Substance Registry System	Tungsten hydroxide oxide phosphate (12067-99-1)

Safety information for Phosphotungstic acid 44-hydrate

Signal word	Danger
Pictogram(s)	Corrosion Corrosives GHS05
GHS Hazard Statements	H314:Skin corrosion/irritation H412:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes	P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P363:Wash contaminated clothing before reuse. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.