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| Lithium hydride | CAS 7580-67-8 | ||
| LiH | RTECS OJ6300000 | ||
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Synonyms & Trade Names Lithium monohydride |
DOT ID & Guide 1414 138 2805 138 (fused, solid) |
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Exposure Limits |
NIOSH REL: TWA 0.025 mg/m3 | ||
| OSHA PEL: TWA 0.025 mg/m3 | |||
| IDLH 0.5 mg/m3 | Conversion | ||
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Physical Description Odorless, off-white to gray, translucent, crystalline mass or white powder. |
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MW: 7.95 |
BP: Decomposes |
MLT: 1256°F |
Sol: Reacts |
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VP: 0 mmHg (approx) |
IP: NA |
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Sp.Gr: 0.78 |
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Fl.P: NA |
UEL: NA |
LEL: NA |
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| Combustible Solid that can form airborne dust clouds which may explode on contact with flame, heat, or oxidizers. | |||
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Incompatibilities & Reactivities Strong oxidizers, halogenated hydrocarbons, acids, water [Note: May ignite SPONTANEOUSLY in air and may reignite after fire is extinguished. Reacts with water to form hydrogen & lithium hydroxide.] |
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Measurement Methods OSHA ID121 |
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Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: Brush (DO NOT WASH) Remove: When wet or contaminated Change: Daily Provide: Eyewash, Quick drench (>0.5 mg/m3) |
First Aid (See procedures) Eye: Irrigate immediately Skin: Brush (DO NOT WASH) Breathing: Respiratory support Swallow: Medical attention immediately |
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Respirator Recommendations
NIOSH/OSHA Up to 0.25 mg/m3: (APF = 10) Any air-purifying respirator with a high-efficiency particulate filter/(APF = 10) Any supplied-air respirator Up to 0.5 mg/m3: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode*/(APF = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter/(APF = 25) Any powered, air-purifying 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 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; eye, skin burns; mouth, esophagus burns (if ingested); nausea; muscle twitches; mental confusion; blurred vision | |
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Target Organs
Eyes, skin, respiratory system, central nervous system |
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| See also: INTRODUCTION |