Sharp AL-1611, Operation Manual

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68
MATERIAL SAFETY DATA SHEET
Date Revised: Jun.28. 2002
Date Issued: Nov.1.1998
MSDS NO. F-00841
9. PHYSICAL AND CHEMICAL PROPERTIES
Appearance
Physical State: Solid Form: Powder Color: Black Odor: odorless
Ph : Not applicable
Boiling/Melting Point : Not applicable
Softening Point (°C) : 100-130
Flash Point (°C) : Not applicable
Ignition Point (°C) : >350
Explosion Properties : No data
Density ( g /cm³) : 1.1 (bulk density : 0.35)
Solubility in water : Negligible
10. STABILITY AND REACTIVITY
Stability : Stable
Hazardous Reactions : Dust explosion, like most finely divided organic powders.
Conditions to avoid : Electric discharge, throwing into fire.
Materials to avoid : Oxidizing Materials
Hazardous Decomposition Products : CO, CO
2
and NO
X
Further Information : None
11. TOXICOLOGICAL INFORMATION
Acute Toxicity
Ingestion (oral) : LD
50
>2000m
g
/k
g
(Rats)
Inhalation : No Data
Dermal : No Data
Eye irritation : Not an irritant
Skin irritation : Not an irritant
Skin sensitizer : No Data
Mutagenicity : Negative (Ames Test)
Carcinogenicity : In 1996 the IARC reevaluated carbon black as a Group 2B carcinogen (possible
human carcinogen). This classification is given to chemicals for which there is
inadequate human evidence, but sufficient animal evidence on which to base an
opinion of carcinogenicity. The classification is based upon the development of lung
tumors in rats receiving chronic inhalation exposures to free carbon black at levels
that induce particle overload of the lung. Studies performed in animal models other
than rats did not show any association between carbon black and lung tumors.
Moreover, a two-year cancer bioassay using a typical toner preparation containing
carbon black demonstrated no association between toner exposure and tumor
development in rats.
Chronic Effect : In a study in rats of chronic inhalation exposure to a typical toner, a mild to moderate
degree of lung fibrosis was observed in 92% of the rats in the high concentration
(16m
g /m³) exposure group, and a minimal to mild degree of fibrosis was noted in
22% of the animals in the middle (4m g /m³) exposure group, but no pulmonary change
was reported in the lowest (1m g /m³) exposure group, the most relevant level to
potential human exposures.
12. ECOLOGICAL INFORMATION
No data are available.
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