Oxalic Acid
CAS No.: 144-62-7

Structural formula:
Molecular formula: C2H2O4 2H2O
Molecular weight: 126.07

Physiochemical properties:
Colorless transparent crystal, melting point: 101 C. Easily soluble in ethanol, soluble in water, slightly soluble in aether, insoluble in benzene or chloroform, toxic and corrosive.

Uses:
Metallurgy industry: As precipitating and resolving agent for rare earth metal, etc.
Organic Synthesis: For 2133 rein, ures form aldehyde powder etc.
Light industry: Polishing of DA LI stone, removing rust bleaching products of leather, wood and aluminium etc.
Printing Industry: Dyeing agent
Medicine Industry: For making tetracydine, HCl etc.
Others: As laboratory agent, solvents activato and basic materials for chemical industry.

Refining Oxalic Acid Uses:
Electronic Industry: To make electronic materials to clean rate intergrate circuit board.
Metallurgy Industry: As precipitating and resolving agent or rare earth material ect.
Others: As laboratory agent, solvents activato and basic materialsfor chemical industry
Storage and transportation: Maximum temperature of 40 C in the transportation. Avoid moisture, drench. Keep it away from oxide and alkaline matter.
Package: 25kg net in plastic waven bags lined with plastic bags.

Oxalic Acid specification
Index Wonderful grade First grade Up to grade
Purity% ≥ 99.6 99.4 99.0
Suiphate group % ≤ 0.08 0.10 0.20
Ignition (850oC) % ≤ 0.08 0.10 0.20
Heavy metal % ≤ 0.001 0.002 0.02
Iron content % ≤ 0.0012 0.002 0.01
Chlorides % ≤ 0.003 0.004 0.01
Calcium % ≤ 0.0012 / /

Refining Oxalic Acid specification

Index  Wonderful grade First grade Up to grade
Purity(H2C2O4 H2O)% ≥ 99.6 99.4 99.0
Suiphate group(SO4-2) % ≤ 0.0010 0.003 0.005
Ash % ≤ 0.01 0.015 0.08
Heavy metal(Pb+2) % ≤ 0.00005 0.0001 0.0005
Fe+3 % ≤ 0.00005 0.0001 0.0005
Cl- % ≤ 0.0005 0.0005 0.001
Ca+2 % ≤ 0.0001 0.00015 0.0005
Al % ≤ 0.0001 0.0001 0.0001
Mg % ≤ 0.00005 0.00001 0.00001
Na % ≤ 0.00015 0.0002 0.0005
As % ≤ 0.00001 0.00001 0.00001

Package: 25kg net in plastic waven bags lined with plastic bags.