Safety Data Sheet for Oxalic Acid

Appearance and Properties: Oxalic Acid/A kind of colourless and transparent noxious crystal containing two crystal water, tastes tart. Melting point: 101-102¡ãC, Specific gravity: 1.653g/cm3(19/4). Easy to sublimate, begins to sublimate at 100¡ãC, sublimates rapidly at 125¡ãC, sublimates in large quantity and begins to decompose at 151¡ãC. Easy soluble in alcohol, slightly soluble in ether, insoluble in chloroform. Turns out saline plus hydrate after reacting with alkali, and turns out ester after reacting with alcohol, to decompose after being heated.

Classification for danger nature for Oxalic Acid
Classification defination: Noxious and corrosive material.
Danger nature: Turns out carbon oxide and hydrate, inflammable, no breathing in.
Chemical equation as follows:

H₂C₂O₄¡úHCOOH+CO₂¡ü
1234567890¡ý
                 H2O+CO¡ü
Harmness: Once breathing carbon oxide, accompanied by the symptom such as stomachache, vomit, oral and throat inflammation, will result in nerve system disorder and death by suffocation. Lethal dose: 5-10g.

Harmness information for Oxalic Acid:
Noxious and corrosive, irritant to skin and mucosa, does obvious harm to kidney after being taken, and calcium oxalate will precipitate and accumulate in the little tubes of kidney, the accompanied symptom, such as weakness, bodyache, weight loss, will occur on patient, Lethal dose minimum: 71mg/kg. The symtom, headache, vomit, mucosa ulcer, will appear after being breathed in.

Rescue measures when:
Entering eyes: turn up eyelid, rinse for above 15 minutes with clear water, go to see doctor immediately for urgent rescue.
Adhearing skin:Rinse for above 15 minutes with clear water, go to see doctor for urgent rescue.

Taking by mistake: Conduct gastric lavage with disinfectant used for removing calcium and magnesium, and go to see doctor for urgent rescue.

Catching fire: Once burned, turns out carbon oxide and carbon dioxide, put out the fire with fire extinguisher immediately, move the subjects around it to the safety place. Fire extinguishing agent used: water, foam fire extinguishing agent, carbon dioxide fire extinguishing agent.

Leaking: Collect it with empty vessel, clear the ground with water in large quantity, The collected Oxalic Acid should be treated as waste product.

Points for attention during:
Manipulation: Well ventilated in the manipulation site. The manipulator should wear gloves, boots and anti-dust mask.
Storage: Should be stored in the dry and ventilated warehouse at temperature below 40¡ãC. Preventing its from moisture, sunshine, and rain. Far away from Oxide and alkali materials.
Transportation: Preventing its vessel from being broken, suffering direct sunshine and rain. Set it apart from oxide and alkali matters. Handle carefully.
Treating waste product: Collect and burn it in furnace.