Cesium hydroxide
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CAS
21351-79-1
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CsOH
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RTECS
FK9800000
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Synonyms & Trade Names
Cesium hydrate, Cesium hydroxide dimer
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DOT ID & Guide
2682 / 157
2681 / 154 (solution)
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Exposure
Limits
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NIOSH REL: TWA 2 mg/m3
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OSHA PEL†: none
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IDLH
N.D.
See: IDLH INDEX
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Conversion
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Physical Description
Colorless or yellowish, crystalline solid. [Note: Hygroscopic (i.e., absorbs moisture from the air).]
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MW: 149.9
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BP: ?
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MLT: 522°F
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Sol(59°F): 395%
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VP: 0 mmHg (approx)
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IP: NA
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Sp.Gr: 3.68
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Fl.P: NA
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UEL: NA
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LEL: NA
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Noncombustible Solid
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Incompatibilities & Reactivities
Water, acids, CO2, metals (e.g., Al, Pb, Sn, Zn), oxygen [Note: CsOH is a strong base, causing the generation of considerable heat in contact with water or moisture.]
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Measurement Methods
None available
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: Daily
Provide: Eyewash, Quick drench
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
Not available.
Important additional information about respirator selection
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Exposure Routes
inhalation, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, skin, upper respiratory system; eye, skin burns
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Target Organs
Eyes, skin, respiratory system
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