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Potassium hydroxide

Synonyms & Trade Names
Caustic potash, Lye, Potassium hydrate
CAS No.
1310-58-3
RTECS No.
TT2100000
DOT ID & Guide
1813 154 (dry, solid)
1814 154 (solution)
Formula
KOH
Conversion
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
: C 2 mg/m3
OSHA PEL
†: none
Measurement Methods

NIOSH 7401
See: NMAM or OSHA Methods
Physical Description
Odorless, white or slightly yellow lumps, rods, flakes, sticks, or pellets. [Note: May be used as an aqueous solution.]
MW:
56.1
BP:
2415°F		 MLT: 716°F Sol(59°F): 107% VP(1317°F): 1 mmHg
IP:
?
Sp.Gr:
2.04
Fl.P:
NA
UEL:
NA
LEL:
NA
Noncombustible Solid; however, may react with H2O & other substances
and generate sufficient heat to ignite combustible materials.
Incompatibilities & Reactivities
Acids, water, metals (when wet), halogenated hydrocarbons, maleic anhydride [Note: Heat is generated if KOH comes in contact with H2O & CO2 from the air.]
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, respiratory system; cough, sneezing; eye, skin burns; vomiting, diarrhea
Target Organs
Eyes, skin, respiratory system
Personal Protection/Sanitation
(See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: Daily
Provide: Eyewash, Quick drench
First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also: INTRODUCTION   See ICSC CARD: 0357
 

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