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

A18067 Phosphoric acid, 85% aq. soln.

CAS-Nummer
7664-38-2
Synonyme
Orthophosphoric acid

Größe Preis ($) Menge Verfügbarkeit
500ml 30,00
2500ml 103,00
10000ml 320,00
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Phosphoric acid, 85% aq. soln.

MDL
MFCD00011340
EINECS
231-633-2

Chemische Eigenschaften

Formel
H3O4P
Molmasse
98.00
Schmelzpunkt
19-21°
Dichte
1.700
Brechungsindex
1.4310
Löslichkeit
Miscible with water, ethanol and mixture of ether: alcohol (3:1).

Anwendungen

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.

Bemerkungen

Incompatible with strong bases and powdered metals.

Literaturverweise

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 Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H314-H318

Causes severe skin burns and eye damage. Causes serious eye damage.

Sicherheitshinweise: P260u-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a

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. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Merck
14,7344
Gefahrenklasse
8
Verpackungsgruppe
III
Harmonized Tariff Code
2809.20
TSCA
Yes
RTECS
TB6300000

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