Perlite, expanded

574.29

573.603434

603-442-8

1141

DTXSID3049706

2.2 to 2.4 (crude) 0.05-0.3 (expanded) (NIOSH, 2016)|Relative density (water = 1): 2.2-2.4 (crude)|2.2-2.4 (crude) 0.05-0.3 (expanded)

>1093 °C

less than 1 % (NIOSH, 2016)|Solubility in water: poor|<1%

0 mm Hg (approx) (NIOSH, 2016)|0 mmHg (approx)

No rapid reaction with air No rapid reaction with water

Non-Redox-Active Inorganic Compounds

PERLITE is non-flammable and non-combustible. Mostly chemically inert. Soluble in hot concentrated alkali and HF. Moderately soluble (<10%) in 1 molar NaOH. Slightly soluble in dilute strong acids . Very slightly soluble in water or weak acids. No chemical incompatibilities reported. When heated to a sufficiently high temperature, it expands to between four and twenty times its original volume as its 2-6% by weight of loosely bound water boils away. When quickly heated to above 1600 degrees F, pops like popcorn as its water vaporizes. Expanded perlite is a fluffy, white particulate.

Noncombustible Solid

36/37/38

26

SD5254000

Xi

Not combustible.

In case of fire in the surroundings, use appropriate extinguishing media.

Skin: No recommendation is made specifying the need for personal protective equipment for the body. Eyes: No recommendation is made specifying the need for eye protection. Wash skin: No recommendation is made specifying the need for washing the substance from the skin (either immediately or at the end of the work shift). Remove: No recommendation is made specifying the need for removing clothing that becomes wet or contaminated. Change: No recommendation is made specifying the need for the worker to change clothing after the work shift. (NIOSH, 2016)|(See protection codes)

Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.

A nuisance-causing concentration of airborne particles can be reached quickly when dispersed.

May cause mechanical irritation to the eyes.

Avoid inhalation of dust and mist.

Protective gloves.

Wear safety spectacles.

Exposure Routes: inhalation, skin and/or eye contact Symptoms: Irritation eyes, skin, throat, upper respiratory system Target Organs: Eyes, skin, respiratory system (NIOSH, 2016)

Eye: If this chemical contacts the eyes, immediately wash the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately. Contact lenses should not be worn when working with this chemical. Breathing: If a person breathes large amounts of this chemical, move the exposed person to fresh air at once. Other measures are usually unnecessary. (NIOSH, 2016)|(See procedures)

Fresh air, rest.

Rinse with plenty of water for several minutes (remove contact lenses if easily possible).

Perlite

Exposure mainly occurs via inhalation.|inhalation, skin and/or eye contact

irritation eyes, skin, throat, upper respiratory system

Cough.

Redness.

Eyes, skin, respiratory system

EPA Safer Chemical Functional Use Classes -> Processing Aids and Additives|Safer Chemical Classes -> Green circle - The chemical has been verified to be of low concern