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| Oxalic acid | CAS 144-62-7 | ||
| HOOCCOOH • 2H2O | RTECS RO2450000 | ||
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Synonyms & Trade Names Ethanedioic acid, Oxalic acid (aqueous), Oxalic acid dihydrate |
DOT ID & Guide |
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Exposure Limits |
NIOSH REL: TWA 1 mg/m3 ST 2 mg/m3 | ||
| OSHA PEL�: TWA 1 mg/m3 | |||
| IDLH 500 mg/m3 | Conversion | ||
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Physical Description Colorless, odorless powder or granular solid. [Note: The anhydrous form (COOH)2 is an odorless, white solid.] |
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MW: 126.1 |
BP: Sublimes |
MLT: 215°F (Sublimes) |
Sol: 14% |
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VP: <0.001 mmHg |
IP: ? |
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Sp.Gr: 1.90 |
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Fl.P: ? |
UEL: ? |
LEL: ? |
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| Combustible Solid | |||
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Incompatibilities & Reactivities Strong oxidizers, silver compounds, strong alkalis, chlorites [Note: Gives off water of crystallization at 215°F and begins to sublime.] |
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Measurement Methods None available |
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Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: Daily Provide: Eyewash |
First Aid (See procedures) Eye: Irrigate immediately Skin: Water flush promptly Breathing: Respiratory support Swallow: Medical attention immediately |
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Respirator Recommendations
NIOSH/OSHA Up to 25 mg/m3: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode�/(APF = 25) Any powered, air-purifying respirator with a dust and mist filter� Up to 50 mg/m3: (APF = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Up to 500 mg/m3: (APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode Emergency or planned entry into unknown concentrations or IDLH conditions: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape: (APF = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter/Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, skin, mucous membrane; eye burns; localized pain, cyanosis; shock, collapse, convulsions; kidney damage | |
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Target Organs
Eyes, skin, respiratory system, kidneys |
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| See also: INTRODUCTION |