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37267-86-0 - Metaphosphoric acid, 39-43%, bal. NaPO<sub>3</sub> (Stabilizer) - B20932 - Alfa Aesar

B20932 Metaphosphoric acid, 39-43%, bal. NaPO3 (Stabilizer)

CAS Number
37267-86-0
Synonyms

Size Price ($) Quantity Availability
100g 48.00
500g 190.00
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Metaphosphoric acid, 39-43%, bal. NaPO3 (Stabilizer)

MDL
MFCD00011351
EINECS
253-433-4

Chemical Properties

Formula
HPO3
Formula Weight
79.98
Density
2.2
Sensitivity
Hygroscopic
Solubility
Soluble in alcohol.

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.

Notes

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

Literature 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.

GHS Hazard and Precautionary Statements

Hazard Statements: H314-H335

Causes severe skin burns and eye damage. May cause respiratory irritation.

Precautionary Statements: P260-P261-P280-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/physician. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Merck
14,7345
Hazard Class
8
Packing Group
III
Harmonized Tariff Code
2809.20
TSCA
Yes

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