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Borates, tetra, sodium salts (Pentahydrate)

Synonyms & Trade Names
Borax pentahydrate, Sodium borate pentahydrate, Sodium tetraborate pentahydrate
CAS No.
12179-04-3
RTECS No.
VZ2540000
DOT ID & Guide
Formula
Na2B4O7 • 5H2O
Conversion
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
: TWA 1 mg/m3
OSHA PEL
†: none
Measurement Methods

NIOSH 0500;
OSHA ID125G
See: NMAM or OSHA Methods
Physical Description
Colorless or white, odorless crystals or free-flowing powder. [herbicide] [Note: Begins to lose water of hydration at 252°F.]
MW:
291.4
BP:
?		 MLT: 392°F
Sol:
3%
VP:
0 mmHg (approx)
IP:
NA
Sp.Gr:
1.82
Fl.P:
NA
UEL:
NA
LEL:
NA
Noncombustible Solid
Incompatibilities & Reactivities
None reported [Note: See the reactivities & incompatibilities reported for the related substance Borax decahydrate above.]
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, upper respiratory system; dermatitis; epistaxis (nosebleed); cough, dyspnea (breathing difficulty)
Target Organs
Eyes, skin, respiratory system
Personal Protection/Sanitation
(See protection codes)
Skin: No recommendation
Eyes: No recommendation
Wash skin: Daily
Remove: No recommendation
Change: Daily
First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Soap wash
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also: INTRODUCTION
 

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