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Perlite

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Synonyms & Trade Names
Expanded perlite [Note: An amorphous material consisting of fused sodium potassium aluminum silicate.]
CAS No.
93763-70-3
RTECS No.
SD5254000
DOT ID & Guide
Formula
Conversion
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
TWA 10 mg/m3 (total) TWA 5 mg/m3 (resp)
OSHA PEL
TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)
Measurement Methods
NIOSH 0500 , 0600
See: NMAM or OSHA Methods
Physical Description
Odorless, light-gray to glassy-black solid. [Note: Expanded perlite is a fluffy, white particulate.]
Molecular Weight
varies
Boiling Point
?
Melting Point
>2000°F
Solubility
<1%
Vapor Pressure
0 mmHg (approx)
Ionization Potential
NA
Specific Gravity
2.2-2.4 (crude) 0.05-0.3 (expanded)
Flash Point
NA
Upper Explosive Limit
NA
Lower Explosive Limit
NA
Noncombustible Solid
Incompatibilities & Reactivities
None reported
Exposure Routes
inhalation, skin and/or eye contact
Symptoms
irritation eyes, skin, throat, upper respiratory system
Target Organs
Eyes, skin, respiratory system
Personal Protection/Sanitation
(See protection codes)
Skin:No recommendation
Eyes:No recommendation
Wash skin:No recommendation
Remove:No recommendation
Change:No recommendation
First Aid
(See procedures)
Eye:Irrigate immediately

Breathing:Fresh air
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 1141
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health