INCOFIBER Nickel-Coated Graphite Fiber
Hazardous Ingredients
Calculated
PEL1 鈥搈g/m3 TLV2 鈥搈g/m3
Hazardous Ingredients C.A.S. No
Composition
INCO Carbon Fiber3 (synthetic)
(polyacrylonitrile (PAN)- 10-90 7440-02-0
based; 92-99.7% carbon)
Material Nickel (Ni) 10-90 7440-02-0 1 1.5*
*as inhalable fraction
Safety Physical and Chemical Data
Silvery, fibrous, odorless material.
Specific Sol. In H20
Ingredient Mol. Wt. m.p.掳C b.p.掳C
Data Gravity g/100ml
Carbon n.av. ~1.8 n.av. n.av. 0
Ni 58.71 8.9 1453 2732 0
Sheet Physical Hazards
This material is electrically conductive. User generated airborne fibers can short circuit electrical equipment.
Health Hazards
As supplied, repeated contact with this product can cause an allergic skin rash. Fine particulate and
airborne fibers are generated in the handling and in user operations which can result in skin, eye and
respiratory irritation. The following provides hazard information on the ingredients.
Carbon Fiber
Occupational dermatitis is not uncommon in workers handling carbon or graphite fibers without proper skin
protection, and inflammatory eruptions and drying of the skin have been noted. May cause mild, mechanical
eye, skin and respiratory tract irritation.
Nickel
LD50 ORAL RAT >9000 mg/kg
Inhalation: The National Toxicology Program has listed nickel as reasonably
anticipated to be a carcinogen based on the production of injection site
tumors. The International Agency for Research on Cancer (IARC) found
there was inadequate evidence that metallic nickel is carcinogenic to
humans but since there was sufficient evidence that it is carcinogenic to
animals, IARC concluded that metallic nickel is possibly carcinogenic to
humans. In 1997, the ACGIH categorized elemental nickel as: A5 "Not
Suspected as a Human Carcinogen". Epidemiological studies of workers
exposed to nickel powder and to dust and fume generated in the
production of nickel alloys and of stainless steel have not indicated the
presence of a significant respiratory cancer hazard.
Evidence for the association of nickel compound exposures and cancer
risk comes mainly from workers in now obsolete nickel refining operations
where very high concentrations of airborne nickel, mostly present as oxidic
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or sub-sulphidic species at up to 100mg/m3 or more, were associated with
excess nasal and lung cancers.
The inhalation of nickel powder has not resulted in an increased incidence
of malignant lung tumors in rodents. Repeated intratracheal instillation of
nickel powder produced an increased incidence of malignant lung tumors
in rats. Repeated intratracheal instillation of nickel powder did not produce
INCO an increased incidence of malignant lung tumors in hamsters when
administered at the maximum tolerated dose. Single intratracheal
instillations of nickel powder in hamsters at doses near the LD50 produced
an increased incidence of fibrosarcomas, mesotheliomas and
Material rhabdomyosarcomas.
Inhalation of nickel powder at concentrations 15 times the TLV irritated the
respiratory tract in rodents.
Safety Inhalation of nickel may induce asthma. This effect is rare, it has been
reported in welders where exposures to nickel are often mixed with other
chemical substances. Persons with a known history of nickel sensitive
asthma should avoid such contact.
Data Skin Contact: Prolonged and intimate contact with metallic nickel may cause irritation to
the skin and nickel sensitivity which may result in allergic skin rashes.
Sheet One case has been reported of asthma induced by external exposure to a
nickel-containing skin clip and by skin contact with nickel.
Wounds: Nickel metal powder has caused tumors at the site of injection in rodents.
However, studies do not suggest a significant risk for humans from nickel-
containing prostheses.
Ingestion: The U.S. National Institute for Occupational Safety and Health (NIOSH)
concluded there is no evidence that nickel and its inorganic compounds are
carcinogenic when ingested. The U.S. Food and Drug Administration has
affirmed that nickel is generally recognized as safe (GRAS) as a direct
human food ingredient.
Preexisting Conditions: Prolonged and intimate skin contact can cause an allergic skin rash in
previously sensitized individuals.
Reproductive Toxicity: Animal experiments indicate that soluble nickel ingestion causes adverse
effects on fetal development at a threshold oral exposure of 2.2 mg/
Ni/kg/day by pregnant rats. Data are insufficient to determine if this effect
occurs in humans and no regulatory agency has classified soluble forms of
nickel as reproductive risks for humans.
California Proposition 65
a NSRL (No Significant Risk Level) has not been adopted for nickel hydroxide as a
carcinogen
a MADL (Maximum Allowable Dose Level) has not been adopted for nickel
hydroxide as a chemical causing reproductive toxicity
鈥淣ickel and certain nickel compounds鈥? is on the Second Priority List for NSRL
Development
Nickel hydroxide is not on any Priority List for MADL Development
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Precautions for safe storage, handling and use
Use ventilation to keep exposure to airborne particulate and fibers below the exposure limit. If ventilation
alone cannot so control exposure, use NIOSH-approved respirators selected according to OSHA 29 CFR
1910.134. Maintain airborne nickel levels as low as possible.
Avoid repeated skin contact. Wear suitable gloves. Wash skin thoroughly after handling. Launder clothing
and gloves as needed. Do not store near acids. Like other metals, nickel can react with acids to liberate
INCO hydrogen gas which can form explosive mixtures in air.
Do not expose this material to carbon monoxide-containing gas under reducing conditions between 20掳C-
Material 150掳C as nickel carbonyl Ni(CO)4, a toxic gas, might be formed. In the presence of small amounts of oxygen,
the formation of Ni(CO)4 will not occur.
Spill, leak and disposal procedure
Safety If spilled, wet with water, place in sealed plastic bags for disposal following EPA and local governmental
regulations.
Emergency and first aid procedures
Data For skin irritation, wash with soap and running water. If irritation persists, seek medical attention.
In case of eye irritation, flush eyeballs with plenty of low pressure water for at least 15 minutes. Remove any
contact lenses to ensure thorough flushing. If mechanical irritation persists, seek medical attention.
Sheet Cleanse wounds thoroughly to remove any particles. If exposure to nickel carbonyl is suspected, seek
medical attention immediately.
SARA Section 313 Supplier Notification
This product contains the following chemical(s) subject to the reporting requirements of Section 313 of the
Emergency Planning and Community Right-to-Know Act of 1986 and of 40 CFR 372:
Nickel
Refer to the Hazardous Ingredients section of this MSDS for the appropriate CAS numbers and percent by
weight.
Novamet Specialty Products Corp
68l Lawlins Road
Wyckoff, New Jersey 07481
(201) 891-7976
Note:
Inco believes that the information in this Material Safety Data Sheet is accurate. However, Inco makes
no express or implied warranty as to the accuracy of such information and expressly disclaims any
liability resulting from reliance on such information.
Footnotes:
庐 Trademark of the Inco family of companies.
1 OSHA Permissible Exposure Limit
2 Threshold Limit Value of the American Conference of Governmental Industrial Hygienists.
3 There is no TLV for carbon fibers. The TLV for all forms of graphite except fibers is 2mg/m3. The TLV for particulate matter
not otherwise classified is 3mg/m3 (respirable). It is probably wise to keep TWA exposures at 2-3mg/m3 until action is taken
by the ACGIH.
4 Describes possible health hazards of the product supplied. If user operations change it to other chemical forms, whether as
end products, intermediates or fugitive emissions, the possible health hazards of such forms must be determined by the user.
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