Metaphosphoric acid, 39-43%, bal. NaPO{3} (Stabilizer), Thermo Scientific Chemicals

Description

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 a phosphorylating agent, analytical reagent and in dental cements.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
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 a phosphorylating agent, analytical reagent and in dental cements.

Solubility
Soluble in alcohol.

Notes
Form: Lumps.Hygroscopic. Moisture sensitive. Incompatible with strong bases, nitromethane and metals.

Specifications

Chemical Identifiers

• CAS: 37267-86-0
• Molecular Formula: HO3P
• Molecular Weight (g/mol): 79.979
• MDL Number: MFCD00011351
• InChI Key: UEZVMMHDMIWARA-UHFFFAOYSA-N
• Synonym: metaphosphoric acid, meta-phosphoric acid, hydrogenphosphonate, m-phosphoric acid, phosphenic acid, unii-mtk99r3uv0, metaphosphoric acid hpo3, x-phosphate-group, phosphonate 1-, hydrogen phosphonate
• PubChem CID: 3084658
• SMILES: OP(=O)=O

• Density: 2.2
• Sensitivity: Hygroscopic
• Quantity: 500 g
• UN Number: UN3260
• Merck Index: 14,7345
• Solubility Information: Soluble in alcohol.
• Formula Weight: 79.98
• Percent Purity: 39 to 43%
• Assay: bal. NaPO₃ (Stabilizer)
• Chemical Name or Material: Metaphosphoric Acid

Safety and Handling

Hazard Category	H314-H335
Hazard Statement	GHS H Statement H314-H335 Causes severe skin burns and eye damage. May cause respiratory irritation.
Precautionary Statement	P260-P264b-P271-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P310-P363-P501c
DOTInformation	Transport Hazard Class: 8; Packing Group: III; Proper Shipping Name: CORROSIVE SOLID, ACIDIC, INORGANIC, N.O.S.
EINECSNumber	253-433-4
TSCA	Yes
Recommended Storage	Ambient temperatures; Store under Nitrogen

SDS

RUO – Research Use Only