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Phosphoric acid, also known as orthophosphoric acid or phosphoric(V) acid, is a weak acid with the chemical formula H3PO4. It is normally encountered as a colorless, syrup of 85% concentration in water. The pure compound is a colorless solid.Phosphoric acid is commonly encountered in chemical laboratories as an 85% aqueous solution, which is a colourless, odourless, and non-volatile syrupy liquid. Although phosphoric acid does not meet the strict definition of a strong acid, the 85% solution can still severely irritate the skin and damage the eyes.
Molecular formula:H3PO4
Molecular weight:97.99
Content:75%,81%,85%.
Properties: Colorless transparent viscous liquid. It is odorless, very sour, melting point 42.35 C, soluble in water, soluble in
ethanol. It can stimulate skin inflammation, destroy body tissues, and has hygroscopicity.
Specification of Phosphoric acid:
Item | 85% Phosphoric acid | 75% Phosphoric acid |
Chroma/ Hazen | 20.0 Max | 20 Max |
Phosphoric acid (H3PO4),w/% | 85.0 Min | 75.0 Min |
Chloride (Calculated by CL),w/% | 0.0005 Max | 0.0005 Max |
Sulfate (Calculated by SO4),w/% | 0.003 Max | 0.003 Max |
Iron (Calculated by Fe),w/% | 0.002 Max | 0.002 Max |
(As),w/% | 0.0001 Max | 0.0001 Max |
Heavy metal (Calculated by Pb),w/% | 0.001 Max | 0.001 Max |
1.phosphoric acid is used for fertilizers
2.Food-grade phosphoric acid (additive E338) is used to acidify foods and beverages such as various colas and jams, providing a
tangy or sour taste.
3.In anti-rust treatment by phosphate conversion coating or passivation
4.As an external standard for phosphorus-31 nuclear magnetic resonance.
5.In phosphoric acid fuel cells.
6.In activated carbon production.
7.In compound semiconductor processing, to etch Indium gallium arsenide selectively with respect to indium phosphide.
8.In microfabrication to etch silicon nitride selectively with respect to silicon dioxide.
9.As a pH adjuster in cosmetics and skin-care products.
10.As a sanitizing agent in the dairy, food, and brewing industries.
Packaging Detail:
35kg net drum: 26.6MT/ 20'GP
330kg drum: 26.4MT/ 20'GP
1650kg IBC tank: 26.4MT/ 20'GP
Store closed containers in a cool, dry, well-ventilated area. Avoid exposure to direct sunlight.
