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Oxalic Acid Msds (Material Safety Data Sheet)
| PRODUCT IDENTIFICATION |
| CAS NO. |
: 144-62-7 (Anhydrous), 6153-56-6 (Dihydrate)
|
| EINECS NO. |
: 205-634-3 |
| FORMULA |
: C2H2O4 (anhydrous), C2H2O4·2H2O (Dihydrate), HOOCCOOH.2H2O
|
| MOL WT. |
: 126.07 |
|
TOXICITY
|
: Oral rat LD50: 7500 mg/kg |
| SYNONYMS |
: Ethanedioic acid, dihydrate; Oxalsäure (German); ácido oxálico (Spanish); Acide oxalique (French); |
| PHYSICAL AND CHEMICAL PROPERTIES (DIHYDRATE) |
| PHYSICAL STATE |
: white crystals |
| MELTING POINT |
: 101 - 102 C |
| BOILING POINT |
: 149 - 160 C (sublimes)
|
| SPECIFIC GRAVITY |
: 1.6 - 1.7 |
| SOLUBILITY IN WATER |
: 1 g/7ml |
| VAPOR DENSITY |
: 4.4 |
|
NFPA RATINGS
|
: Health: 3; Flammability: 1; Reactivity: 0 |
| FLASH POINT |
: 163 C
|
| STABILITY |
: Stable under ordinary conditions |
| HANDLING AND STORAGE |
|
Keep in a tightly closed container. Protect from physical damage. Store in a cool, dry, ventilated area away from sources of heat, moisture and incompatibilities. Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.
|
| First Aid Measures |
|
Inhalation:
Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Call a physician immediately.
Ingestion:
DO NOT INDUCE VOMITING! Give large quantities of limewater or milk to drink. Never give anything by mouth to an unconscious person. Call a physician immediately.
Skin Contact:
In case of contact, wipe off excess from skin then immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Call a physician immediately.
Eye Contact:
Immediately flush eyes with gentle but large stream of water for at least 15 minutes, lifting lower and upper eyelids occasionally. Call a physician immediately.
|
| Fire Fighting Measures |
|
Fire:
Oxalic Acid is a combustible solid below 101C (215F)
Explosion:
Reacts explosively with strong oxidizing materials and some silver compounds.
Fire Extinguishing Media:
Water spray, dry chemical, alcohol foam, or carbon dioxide. Foam or water on molten oxalic acid may cause frothing. Water spray may be used to keep fire exposed containers cool.
Special Information:
In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full facepiece operated in the pressure demand or other positive pressure mode.
|
| Accidental Release Measures |
|
Remove all sources of ignition. Ventilate area of leak or spill. Wear appropriate personal protective equipment as specified in Section 8.
Spills: Clean up spills in a manner that does not disperse dust into the air. Use non-sparking tools and equipment. Pick up spill for recovery or disposal and place in a closed container. Remove unnecessary people. If material comes in contact with water, neutralize liquid with alkaline material (soda ash, lime), then absorb with an inert material (e.g. vermiculite, dry sand, earth) and place in a chemical waste container. Do not use combustible materials, such as saw dust. Do not flush to sewer.
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