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

CAS: 37267-86-0 | HO3P | 79.979 g/mol

Catalog Number	Quantity
ALFB20932.22	100 g

Catalog number ALFB20932.22

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100 g

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Specifications

Chemical Name or MaterialMetaphosphoric acid

CAS37267-86-0

Health Hazard 1H314-H335

Density2.2

Health Hazard 2GHS H Statement
H314-H335
Causes severe skin burns and eye damage.
May cause respiratory irritation.

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.

RUO – Research Use Only

General References:

Alkorta, I.; Azofra, L. M.; Elguero, J. Ab initio study in the hydration process of metaphosphoric acid: the importance of the pnictogen interactions. Theor. Chem. Acc. 2015, 134 (3), 1-8.
Feitosa, V. P.; Bazzocchi, M. G.; Putignano, A.; Orsini, G.; Luzi, A. L.; Sinhoreti, M. A. C.; Watson, T. F.; Sauro, S. Dicalcium phosphate(CaHPO₄·2H₂O) precipitation through ortho- or meta-phosphoric acid-etching: Effects on the durability and nanoleakage/ultra-morphology of resin-dentine interfaces. J. Dent. 2013, 41 (11), 1068-1080.