meta-Phosphoric acid

Base Information

• Chemical Name: meta-Phosphoric acid
• CAS No.: 37267-86-0
• Deprecated CAS: 135306-83-1
• Molecular Formula: HO3P
• Molecular Weight: 79.98
• Hs Code.: 28092019
• European Community (EC) Number: 253-433-4,233-750-4
• DSSTox Substance ID: DTXSID10893985
• Nikkaji Number: J96.455G
• Wikipedia: Metaphosphoric acid
• Wikidata: Q2622702,Q27115658
• Mol file: 37267-86-0.mol

Synonyms:metaphosphoric acid;phosphenic acid

Chemical Property of meta-Phosphoric acid

Chemical Property:

• Appearance/Colour: transparent glass-like solid
• Vapor Pressure: 0.04 hPa at 20 °C
• Melting Point: 21 °C
• Boiling Point: 158 °C
• PSA: 88.51000
• Density: 2.2 g/cm³
• LogP: 0.06660
• Storage Temp.: Store below +30°C.
• Sensitive.: Hygroscopic
• Solubility.: Soluble in alcohol.
• Water Solubility.: Decomposes in water. Soluble in alcohol.
• XLogP3: -1.2
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 3
• Rotatable Bond Count: 0
• Exact Mass: 79.96633089
• Heavy Atom Count: 4
• Complexity: 46.2

Purity/Quality:

meta-Phosphoric acid purum, ~65% HPO3 basis, pieces ^*data from reagent suppliers

Safty Information:

• Pictogram(s): C
• Hazard Codes: C
• Statements: 34-35-22-37
• Safety Statements: 26-36/37/39-45

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Toxic Gases & Vapors -> Acids, Inorganic
• Canonical SMILES: OP(=O)=O
• Physical Properties: Glass-like colorless solid; soft and transparent; deliquesces; sublimes at red heat; dissolves slowly in cold water, decomposing to phosphoric acid; soluble in alcohol.
• Uses: An inorganic reagent used for research purposes In dentistry for making zinc oxyphosphate cement; as reagent in chemical analysis. Metaphosphoric acid is used as a dehydrating agent. Its derivative, sodium hexametaphosphate is used as a sequestrant and a food additive. It is also used as phosphorylating agent, analytical reagent and in dental cements.