SDS

Road Rescue Asphalt: SDS for Limestone Rock Asphalt (LRA)
March 2015
SECTION XI – TOXICOLOGICAL INFORMATION, CONTD.
Chronic effect/carcinogenicity: Irritability, nausea or vomiting, and normocytic anemia. When exposed to levels greater than 50
to 100 milligram per day, it can result in pathological deposition of iron in the body tissues causing fibrosis of the pancreas,
diabetes mellitus, and liver cirrhosis. Workers exposed to iron oxide fume and silica may develop a “mixed dust pneumoconiosis.”
Not classifiable as human carcinogen.
Potassium Oxide:
Exposure route: Inhalation, ingestion, eye/skin contact.
Target organs: Respiratory system, gastrointestinal system, eyes, skin.
Acute effect: Corrosive – Potassium oxide reacts violently with water to produce potassium hydroxide. If inhaled, causes sore
throat, cough, burning sensation and shortness of breath. Contact with skin produces pain and blisters. Severe deep burns, redness
and pain occur with eye contact. Ingestion results in burning sensations, abdominal pain, shock or collapse.
Chronic effect/carcinogenicity: Not classifiable as human carcinogen.
Calcium Oxide:
Exposure route: Inhalation, ingestion, skin/eye contact.
Target organs: Eyes, skin, respiratory system.
Acute effect: Direct contact with tissues, can result in burns and severe irritation because of its high reactivity and alkalinity.
Major complaints of workers exposed to lime consist of irritation of the skin and eyes, although inflammation of the respiratory
passages, ulceration and perforation of the nasal septum, and even pneumonia has been attributed to inhalation of the dust.
Chronic effect/carcinogenicity: Not classifiable as human carcinogen.
Magnesium Oxide:
Exposure route: Inhalation, eye/skin contact.
Target organs: Eyes, respiratory system.
Acute effect: Magnesium oxide dust caused slight irritation of the eyes and nose, conjunctivitis, inflammation of the mucous
membrane, and coughing up discolored sputum after industrial exposures amongst workers exposed to an unspecified
concentration of MgO.
Chronic effect/carcinogenicity: Not classifiable as human carcinogen.
Calcium Carbonate:
Exposure route: Inhalation, skin/eye contact.
Target organs: Eyes, skin, respiratory system.
Acute effect: Irritation of the eyes, skin and respiratory system and cough. It has been reported that there may be a silicosis risk
when using impure limestone containing in excess of 3% quartz. However, it is claimed that pure calcium carbonate does not
cause pneumoconiosis. Adverse health effects have generally not been reported in literature among workers using CaCO
3
.
Chronic effect/carcinogenicity: Not classifiable as human carcinogen