TCP DLC-A

Hazardous Ingredients

OSHA The component(s) listed below is identified as a hazardous chemical under the criteria of the OSHA Hazard Communication Standard (29 CFR 1910.1200). ACGIH OSHA INGREDIENT CAS # (TLV) (PEL) UNITS Silicon Dioxide 7631-86-9 10 6 mg/m3 SECTION III- PHYSICAL DATA Boiling Point: 4660 F @4.00 mm Hg Specific Gravity: 1.326 (Calculated) Vapor Pressure (mm Hg): <0.02 @262° F Percent Volatiles: Nil Vapor Density (Air = 1): 12.7 Evaporation Rate: Slower than ether Solubility in Water: Insoluble Appearance and Odor: SECTION IV- FIRE& EXPLOSION DATA FLASH POINT (Method Used): 4370 F (COC) FLAMMABLELIMITS:N/DA AUTOIGNITION TEMPERATURE: N/DA EXTINGUISHING MEDIA: Regular foam or carbon dioxide or dry chemical SPECIAL FIREFIGHTING PROCEDURES: Wear self-contained breathing apparatus with a full face piece operated in the positive pressure demand mode when fighting fires. UNUSUAL FIRE & EXPLOSION HAZARDS: Never use welding or cutting torch on or near containers (even empty) because product (even residue) can ignite explosively. SECTIONV - HEALTHHAZARD DATA CHRONICHEALTHEFFECTS: An epidemiologicalstudy was conducted which included 165 precipitated silica workers who had been exposed for an average of 18 years. No adverse effects were noted in complete medical examination (including chest roentgenograms) of these workers. Pulmonary function decrements were correlated only with smoking and age but not with the degree or duration of dust exposure. Laboratorystudies have also been conducted in small animals via inhalationto levels of precipitated silica dust of up to 126 mg/m3 for periods from six months to two years. Although precipitated silica was temporarily deposited in the animal's lungs, most of the deposited material was cleared soon after the dust exposure ended. The results of all studies performed by, or known to, PPG indicate a very low order of pulmonary activity for synthetic precipitated silica. MARKETED BY HARWICK STANDARD DISTRIBUTION CORPORATION 60 S. Seiberling Street. Akron, Ohio 44305 TCP DLC-A NA TROCHEM MSDS PAGE 2 OF 4 SECTION V - HEALTH HAZARD DATA (cont) PRIMARY ROUTE OF ENTRY- Inhalation, skin contact. CHEMICAL LISTED AS CARCINOGEN OR POTENTIAL CARCINOGEN: None NTP: No IARC: No OSHA: No EFFECTS OF EXPOSURE- EYES- Mildly irritating. Excessive contact with powder can cause drying of mucous membranes of eyes due to absorption of moisture and oils. SKIN- Mildly irritating. INHALA TION- Nuisance dust. Excessive contact with powder can cause drying of mucous membranes of nose and throat due to absorption of moisture and oils. This material can also cause nasal irritation and nosebleeds. Excessive inhalation of vapors can cause nasal and respiratory irritation, central nervous system effects including dizziness, weakness, fatigue, nausea, headache, and possible unconsciousness, and even death. INGESTION- Can cause gastrointestinal irritation, nausea, vomiting, and diarrhea. MEDICAL CONDITIONS AGGRAVATED BY EXPOSURE- Persons with breathing problems or lung disease should not work in dusty areas unless a physician approves and certifies their fitness to wear respiratory protection. SECTION VI - EMERGENCY & FIRST AID PROCEDURES