• USA Home
  • 79690 - Phosphotungstic acid hydrate

EMAIL THIS PAGE TO A FRIEND
79690 Sigma-Aldrich

Phosphotungstic acid hydrate

for microscopy

Synonym: Tungstophosphoric acid

  • CAS Number 12501-23-4

  • Linear Formula H3[P(W3O10)4] · xH2O

  • Molecular Weight 2880.05 (anhydrous basis)

  •  MDL number MFCD00149915

  •  PubChem Substance ID 329768557

Purchase

Properties

Related Categories Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, Derivatization Reagents, Derivatization Reagents TLC,
grade   for microscopy
InChI Key   AVFBYUADVDVJQL-UHFFFAOYSA-N
impurities   ≤0.002% total nitrogen (N)
loss   ≤15% loss on drying
mp   ~95 °C(lit.)
anion traces   chloride (Cl-): ≤50 mg/kg
  sulfate (SO42-): ≤100 mg/kg
cation traces   Ca: ≤20 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤20 mg/kg
  K: ≤50 mg/kg
  Na: ≤50 mg/kg
  Pb: ≤20 mg/kg
  Zn: ≤5 mg/kg

Description

Other Notes

Review of the folin phenol method for the quantitative determination of proteins

Same product — same quality — now Sigma-Aldrich brand

General description

Phosphotungstic acid hydrate is a reagent suitable to detect alkaloids and nitrogenous bases. It is suitable in manufacturing organic pigments, additive in plating industry. It imparts water resistance to plastics, adhesives and cement. It also is suitable as a catalyst for organic reactions.

Price and Availability

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.



Safety & Documentation

Safety Information

Symbol 
GHS05  GHS05
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 3260 8 / PGII
WGK Germany 
3

Documents

Certificate of Analysis

Protocols & Articles
Peer-Reviewed Papers
15

References

Set your institution to view full text papers.
Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?