Borates, tetra, sodium salts (Pentahydrate)
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CAS
12179-04-3
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Na2B4O7 • 5H2O
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RTECS
VZ2540000 |
Synonyms & Trade Names
Borax pentahydrate, Sodium borate pentahydrate, Sodium tetraborate pentahydrate
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DOT ID & Guide
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Exposure
Limits
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NIOSH REL: TWA 1 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 white, odorless crystals or free-flowing powder. [herbicide] [Note: Begins to lose water of hydration at 252°F.]
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MW: 291.4
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BP: ?
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MLT: 392°F
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Sol: 3%
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VP: 0 mmHg (approx)
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IP: NA
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Sp.Gr: 1.82
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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
None reported [However, see the reactivities & incompatibilities reported for the related substance Borax decahydrate above.]
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Measurement Methods
NIOSH 0500; OSHA ID125G
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: No recommendation
Eyes: No recommendation
Wash skin: Daily
Remove: No recommendation
Change: Daily
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash
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; dermatitis; epistaxis (nosebleed); cough, dyspnea (breathing difficulty)
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Target Organs
Eyes, skin, respiratory system
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