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85% Rust Converter Phosphoric Acid in Chemical Reagents

  • phosphoric acid

  • XLW

Product Description


Product Introduction

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

CAS NO.: 7664-38-2 Alias Orthophosphoric Acid
EINECS 231-633-2 Appearance Transparent Colorless Liquid
Melting Point 42 ºC Density 1.874g/mL
Boiling Point 261 ºC Odor No Irritating Odor

Chemical Properties

Phosphoric acid, also known as orthophosphate, is a common inorganic acid with the chemical formula H3PO4 and a molecular weight of 97.995. Phosphoric acid is not volatile, not easily decomposed, and has almost no oxidizing properties. It has acidic properties and is a ternary weak acid. Its acidity is weaker than hydrochloric acid, sulfuric acid, nitric acid, but stronger than acetic acid, boric acid, etc.

Application Area

Phosphoric acid is prone to deliquescence in the air, and heating can result in dehydration to obtain pyrophosphoric acid, which is further dehydrated to obtain metaphosphate. Phosphoric acid is mainly used in industries such as pharmaceuticals, food, fertilizers, etc., including as a rust inhibitor, food additive, dental and orthopedic surgery, EDIC corrosive agent, electrolyte, flux, dispersant, industrial corrosive agent, raw material and component for fertilizers, household cleaning products, and can also be used as a chemical reagent.


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


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  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.



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

Package Drum No. Net Weight per Drum Net Weight per 20'FCL
IBC Drum 20.00 1200 KG 24 MT
35KG Drum 720.00 35 KG 25.2MT
220KG Drum 80.00 220 KG 17.6 MT

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1.Q:What's your payment terms?
  A: We are ok for T/T, L/C at sight, L/C 90/120 days, we can also try OA for regular and reliable clients.
2.Q:What's your delivery time?
   A: Usually we will arrange the shipment in 7 -15 days.

3.Q:How about the packing?
  A: Usually we provide the packing as 25 kg / bag or carton. Of course, if you have special requirements on them, we will according to you.

4.Q:How about the validity of the products?
  A: According to the products you ordered.

5.Q:How to confirm the product quality before placing orders?
  A: You can get free samples from us or take our SGS report as referene or arrange SGS before loading.

6.Q:What is loading port?
  A: At main ports of China


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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