Cho-Form 5515

Principle Routes of Exposure

Inhalation, skin and eye contact.

Medical Conditions Generally Aggravated by Exposure

No data is available for this product mixture Acute Effects Eye: Direct eye contact may cause irritation with mild redness and dryness. Skin: Prolonged and repeated contact may cause irritation. Repeated contact with metallic nickel can cause nickel sensitivity and allergic skin reactions. Inhalation: No respiratory irritation is anticipated due to the low volatility of this product at room temperature. However, heating can generate vapors that may cause respiratory irritation. Oral: Harmful if swallowed.

Potential chronic health

Chronic: Exposure to filler materials is unlikely to occur unless the product is handled under aggressive use conditions, in which case the toxicity information below would apply. Prolonged exposure to crystalline free silica may cause scarring of the lungs with symptoms including coughing and shortness of breath. A delayed lung disease, silicosis, may result from prolonged breathing of free crystalline silica. Silicosis is a form of disabling pulmonary fibrosis which can lead to pulmonary or heart failure. Crystalline silica is classified as an IARC and NTP carcinogen. The National Toxicology Program (NTP) has listed nickel as reasonably anticipated to be a carcinogen. The International Agency of Research on Cancer (IARC) has concluded that there is sufficient evidence that nickel and nickel compounds, as a group, are carcinogenic in humans. Epidemiological studies of workers exposed to nickel powder and to dusts and fumes generated in the production of nickel alloys and of stainless steel have not indicated the presence of a significant respiratory cancer hazard. Inhalation of natural and synthetic graphite has resulted in cases of pneumoconiosis. Note: When heated to temperatures above 150°C, in the presence of air, this product may form traces of formaldehyde. Formaldehyde is a potential cancer hazard. Safe handling conditions may be

Storage

Store in a cool dry location with adequate ventilation. Keep container tightly closed when not in use. Prevent contact/storage with incompatible materials. Keep away from open flame and heat sources. EXPOSURE CONTROLS/PERSONAL PROTECTION The recommendations described in this section are provided as general guidance for minimizing exposure. Because usage conditions vary with customer applications, specific exposure controls should be developed by a person knowledgeable in the intended usage condition and equipment. Ventilation: Provide local exhaust ventilation to capture vapors or mist generated by the process. Ventilation must be sufficient to maintain airborne levels of Section 2 ingredients their exposure limits. Eyes: Use safety eyewear including safety glasses with side shields and chemical goggles where splashing may occur. Skin: Wear appropriate protective gloves to prevent skin contact. Wash thoroughly after handling and before eating, drinking or smoking. Contaminated clothing or shoes should be removed as soon as possible and thoroughly cleaned before reuse. Inhalation: Use NIOSH/MSHA approved respiratory protection if adequate exhaust ventilation is not provided or air sampling indicates exposure limits are exceeded. The type of respirator selected will depend on the condition of use. Respiratory protection programs must comply with 29 CFR 1910.134. Page 4 5515 PHYSICAL AND CHEMICAL PROPERTIES Physical Form: Black paste. Specific Gravity: Not available. Boiling Point: Not available. Vapor Pressure (25°C): Not available. Vapor Density: Not available. Solubility in Water: Insoluble. Volatile Content (Wt%): Not available. STABILITY AND REACTIVITY Stability Stable. Condition to Avoid: Avoid storage in open containers, exposure to sources of ignition or exposure to incompatible materials. Materials to Avoid: Strong oxidizers, reactive substances, acids and bases. Hazardous Polymerization: Will not occur. TOXICOLOGY INFORMATION Complete data not yet available.

ECOLOGICAL INFORMATION

Complete data not yet available. DISPOSAL INFORMATION Complete data not yet available. TRANSPORTATION INFORMATION Complete data not yet available. Page 5 5515 REGULATORY AND MISCELLANEOUS INFORMATION TSCA: All components of this product are included on the EPA's Toxic Substance Control Act Inventory. SARA 313 Chemicals: Nickel, Nickel Oxide Date Prepared: 12-23-96 Supersedes: Document Number: 5515 Prepared By: Stephen Hynes Revision: This information and recommendations herein is based upon data considered true and accurate. However, Chomerics makes no warranties, express or implied as to the accuracy or adequacy of the information contained herein or the results to be obtained from the use thereof. This information is offered solely for the user's consideration, investigation and verification. Sine the use and conditions of use of this information and material are not within the control of Chomerics, Chomerics assumes no responsibility for injury to the user or third persons. The material described herein is sold pursuant to Chomerics' Terms and Conditions of Sale, including those limiting warranties and remedies contained therein. It is the responsibility of the user to determine whether any use of this data and information is in accordance with applicable federal, state or local laws and regulations.