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7664-38-2 - Phosphoric acid, 85% aq. soln. - Orthophosphoric acid - A18067 - Alfa Aesar

A18067 Phosphoric acid, 85% aq. soln.

CAS Number
7664-38-2
Synonyms
Orthophosphoric acid

Size Price ($) Quantity Availability
500ml 29.56
2500ml 104.03
10000ml 323.42
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Phosphoric acid, 85% aq. soln.

MDL
MFCD00011340
EINECS
231-633-2

Chemical Properties

Formula
H3O4P
Formula Weight
98.00
Melting point
19-21°
Density
1.700
Refractive Index
1.4310
Solubility
Miscible with water, ethanol and mixture of ether: alcohol (3:1).

Applications

Phosphoric acid is used mainly in fertilizers. It is used as an external standard for phosphorus-31 Nuclear magnetic resonance (NMR); as an electrolyte in phosphoric acid fuel cells and as a catalyst in the hydration of alkenes to produce alcohols, predominantly ethanol. It finds application as a buffer agent in biology and chemistry; as a solution for anodizing and as a cleaner by construction trades to remove mineral deposits, cementitious smears and hard water stains. It is also used as a pH adjuster in cosmetics and skin-care products and a dispersing agent in detergents and leather treatment. It plays an important role in the preparation of albumin derivatives. It is an important starting material used in the preparation of disodium hydrogen phosphate, trisodium phosphate, calcium dihydrogen phosphate and monohydrogen phosphate. It is also used in dentistry and orthodontics as an etching solution as well as a sanitizing agent in dairy, food and brewing industries. It serves as an acidic fruitlike flavoring in food products. It is widely used to remove rust in steel tools or surfaces by converting the rusted ion in to water soluble phosphate compound.

Notes

Incompatible with strong bases and powdered metals.

Literature References

Aili, D.; Vassiliev, A.; Jensen, J. O.; Schmidt, T. J.; Li, Q. Methyl phosphate formation as a major degradation mode of direct methanol fuel cells with phosphoric acid based electrolytes. J. Power Sources 2015, 279, 517-521.

Bondesson, P. M.; Dupuy, A.; Galbe, M.; Zacchi, G. Optimizing Ethanol and Methane Production from Steam-pretreated, Phosphoric Acid-impregnated Corn Stover. Appl. Biochem. Biotechnol. 2015, 175 (3), 1371-1388.

GHS Hazard and Precautionary Statements

Hazard Statements: H314

Causes severe skin burns and eye damage.

Precautionary Statements: P260-P280-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310-P363-P405-P501a

Do not breathe 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. Wash contaminated clothing before reuse. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Merck
14,7344
Hazard Class
8
Packing Group
III
Harmonized Tariff Code
2809.20
TSCA
Yes
RTECS
TB6300000

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