Sharp AR-235, Operation Manual

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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
Dermal : No Data
Inhalation : LC
50
>4.97m g /L
Eye irritation : Not an irritant
Skin irritation : Not an irritant
Skin sensitizer : None
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 /m 3 )
exposure group, and a minimal to mild degree of fibrosis was noted in 22% of the animals in
the middle (4m
g /m 3 ) exposure group, but no pulmonary change was reported in the lowest
(1m g /m 3 ) exposure group, the most relevant level to potential human exposures.
12. ECOLOGICAL INFORMATION
No data are available.
13. DISPOSAL CONSIDERATION
Waste from residues : Waste material may be dumped or incinerated under conditions which meet all
federal, state and local environmental regulations.
Contaminated Packaging : Waste may be disposed or incinerated under conditions which meet all federal, state
and local environmental regulations.
14. TRANSPORT INFORMATION
UN Classification : None
Land DOT (USA) : None
Sea :
: None
Air None
:
IMDG
ICAO-TI
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