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85% Etchant Phosphoric Acid H2SO4 for Derusting

  • phosphoric acid

  • XLW

Product Description


Introduction (  Phosphoric Acid CAS No.7664-38-2)

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
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.

Common Name Phosphoric acid
CAS Number 7664-38-2 Molecular Weight 97.995
Density 2.2±0.1 g/cm3 Boiling Point 158.0±0.0 °C at 760 mmHg
Molecular Formula H3O4P Melting Point ~40 °C(lit.)


Products Parameters

Index Specification Result
Phosphoric Acid(H3PO4) ≥85% 85.2%
Easy oxide(In terms of H3PO3) ≤0.012% 0.0060%
Heavy metal(In terms of Pb) ≤5.0mg/kg 3.0mg/kg
Arsenic(As) ≤0.5mg'kg 0.1mg/kg
Fluoride(In terms of F) ≤10mg'kg 4.0
Appearance Colorless transparent goods with light viscous liquid Colorless transparent viscous liquid

Function and Application

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.


Packing and shipping

Packing Details:

PackageDrum No.Net Weight per Drum Net Weight per 20'FCL

IBC Drum20.001100 KG22 MT

30KG Drum720.0030 KG21.6 MT

220KG Drum80.00220 KG17.6 MT

Shipment:we have established solid cooperation with DHL,TNT,Fedex,UPS,EMS and air freight as well as sea shipping companies for many years,and it is possiable that we use your own shipping agent too.

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Our services

1. Purity, Package, Mark, thiry party test (SGS,BV,Intertek,CIQ)
2. Sample order are acceptable
3. Reply you for your inquiry asap within 12 hours

4. Cargoes photo before and after loading into container will be sent to you by email

5. Guaranteed delivery time

6. Full experience in this field

7. Good cooperation with cargo agents and shipping companies

8. professional sales and engineers will solve the problem you concern


Company Information






Room 507, Zhonghua Building, 707 Union Road, Xinhua District, Shijiazhuang City, Hebei Province, China
Shijiazhuang Xinlongwei Chemical Co., Ltd., focus on Liquid Hazard Chemicals and being one of the largest manufacturer and exporter of Hydrochloric Acid, Sulfuric Acid, Hydrogen Peroxide, Caustic Soda Liquid, Nitric Acid and Lead Nitrate in North China.

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