MSDS

Crystalline silica,which is a component of limestone, is now classified by IARC as known human carcinogen (Group I). NTP
has characterized respirable silica as "reasonably anticipated to be [a] carcinogen".
Medical conditions which may be aggravated be, inhalation or dermal exposure:
Pre-existing upper respiratory and lung diseases.
Section 4 - FIRST AID
Eyes
Immediately flush eyes thoroughly with water. Continue flushing eye for at least 15 minutes, including under lids, to remove all
particles. Call physician if irritation persists or later develops.
Skin
Wash skin with cool water and pH-neutral soap or a mild detergent. Seek medical treatment if irritation persists or later develops.
Inhalation of Airborne Dust
Remove to fresh air. Seek medical help if coughing and other symptoms do not subside.
Ingestion
Do not induce vomiting. If conscious, have the victim drink plenty of water and call a physician immediately.
Section 5 - FIRE AND EXPLOSION DATA
Flash point ...................................None Lower Explosive Limit.................…....None
Upper Explosive Limit.................None Auto ignition temperature...............…..Not Combustible
Extinguishing media.....................Not Combustible Special fire fighting Procedures....…....None
Hazardous combustion products..None Unusual fire and explosion hazards…..None
Section 6 - ACCIDENTAL RELEASE MEASURES
Collect dry material using a scoop. Avoid actions that cause dust to become airborne. Avoid inhalation of dust and contact with skin.
None of the components of this product are subject to the reporting requirements of Title III of SARA 1986, and 40 CFR 372.
Section 7 - HANDLING AND STORAGE
Follow the personal protection and controls set forth in Section 8 of this MSDS when handling this product. Respirable crystalline
silica-containing dust may be generated during processing, handling and storage.
Section 8 - EXPOSURE CONTROLS/PERSONAL PROTECTION
Skin Protection
Wash dust-exposed skin with soap and water before eating, drinking, smoking, and using the toilet facilities. Wash work cloths
after each use.
Respiratory Protection
Avoid actions that cause dust to become airborne. Use local or general exhaust ventilation to control exposures below applicable
exposure limits.
Use NIOSH/MSHA approved (under 30 CFR 11) or NIOSH approved (under 42 CFR 84) respirators in poorly ventilated areas, if
an applicable exposure limit is exceeded, or when dust causes discomfortor irritation. (Advisory: Respirators and filterspurchased
after June 10, 1998 must be certified under 42 CFR 84.)
Ventilation
Use local exhaust or general dilution ventilation to control exposure within applicable limits.
Eye Protection
Safety glasses with side shields should be worn as minimum protection. In extremely dusty environments and unpredictable
environments wear unvented or indirectly vented goggles to avoid eye irritation or injury. Contact lenses should not be worn when