Stability And Reactivity; Toxicological Information - Oki B8300n Limited Warranty

9. PHYSICAL AND CHEMICAL PROPERTIES
Appearance
Physical State:
Solid
Form:
Powder
Color:
Black
Odor:
Odorless
Chemical Properties
Ph:
Not applicable
Boiling/Melting Point:
Softening Point:
100-130°C
Flash Point:
Not applicable
lgnition Point:
>350°C
Explosion Properties:
Density(g/cm³):
Solubility in water:

10.STABILITY AND REACTIVITY

Stability:
Stable
Hazardous Reactions:
Conditions to avoid:
Materials to avoid:
Hazardous Decomposition Products:
Further Information:

11.TOXICOLOGICAL INFORMATION

Acute Toxicity
Ingestion (oral):
Inhalation:
LC > 5.71 mg/L
50
Eye irritation:
Not an irritant (rabbits)
Skin irritation:
Not an irritant (rabbits)
Skin sensitizer:
No sensitization
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 (16 mg/m
mild degree of fibrosis was noted in22% of the animals in the middle (4 mg/m
pulmonary change was reported in the lowest (1 mg/m
potential human exposures.
8
Not applicable
No data
1.1 (bulk density = 0.4)
Negligible
Dust explosion, like most finely divided organic powders.
Electric discharge, throwing into fire.
Oxidizing Materials
CO, CO
None
> 2500 mg/kg (Rats )
LD
50
and NO
2 x
3
) exposure group, the most relevant level to
3
) exposure group, and a minimal to
3
) exposure group, but no
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