Phosphoric Acid 85%

Concentrated phosphoric acid is approx. 85% H3PO4 (aqueous). In aqueous solutions, phosphoric acid behaves as a triprotic acid. The triprotic acid has three ionizable hydrogen atoms, which are lost sequentially.Sigma Life Science is committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency.


Industrially, phosphoric acid may be used in fertilizers, detergents, pharmaceuticals, water softeners.Phosphoric acid has been used as an acid solution for pH adjustment of the fermentation broth in a protocol for the acetone-butanol-ethanol (ABE) fermentation of sugars in a bioreactor.


100, 500 mL in glass bottle Packaged in clear glass bottles.

Signal word  Danger
concentration 85 wt. % in H2O
density 1.685 g/mL at 25 °C(lit.)
Related Categories Acids, Alternative Energy, Battery Electrolyte Materials, Chemical Synthesis, Electrolytes,
vapor density 3.4 (vs air)
vapor pressure 2.2 mmHg ( 20 °C)
5 mmHg ( 25 °C)

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