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% ¡Ý  99.6  99.4  99.0
Suiphate group % ¡Ü  0.08  0.10  0.20
Ignition (850oC) % ¡Ü  0.08  0.10  0.20
Heavy metal % ¡Ü  0.001  0.002  0.02
Iron content % ¡Ü  0.0012  0.002  0.01
Chlorides % ¡Ü  0.003  0.004  0.01
Calcium % ¡Ü  0.0012  /  /

Refining Oxalic Acid specification

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

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