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

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

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500 g
100 g
Catalog number B20932.36
also known as B20932-36
Price (USD)/ Each
240.65
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267.00 
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Quantity:
500 g
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Price (USD)/ Each
240.65
Online exclusive
267.00 
Save 26.35 (10%)
Add to cart
Metaphosphoric acid, 39-43%, bal. NaPO{3} (Stabilizer), Thermo Scientific Chemicals
Catalog numberB20932.36
Price (USD)/ Each
240.65
Online exclusive
267.00 
Save 26.35 (10%)
-
Add to cart
Chemical Identifiers
CAS37267-86-0
IUPAC Nametrihydroxy-1,3,5,2λ⁵,4λ⁵,6λ⁵-trioxatriphosphinane-2,4,6-trione
Molecular FormulaH3O9P3
InChI KeyAZSFNUJOCKMOGB-UHFFFAOYSA-N
SMILESOP1(=O)OP(O)(=O)OP(O)(=O)O1
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SpecificationsSpecification SheetSpecification Sheet
Appearance (Color)Clear translucent or glassy
Formlumps or rods
CommentBalance is the sodium salt NaPO3
Assay (unspecified)39-44% (HPO3)
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:

  1. 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.
  2. 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.