S H A R P

Date Revised

:

Apr. 9,

2003

Date Issued

:

July. 16.

1999

MATERIAL SAFETY DATA SHEET (3/4)

 

 

 

 

MSDS No. P-00102

 

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, CO2 and NOX

 

Further Information

 

:

None

 

 

 

11. TOXICOLOGICAL INFORMATION

 

 

Acute Toxicity

: LD50>2000mg/kg(Rats)

 

Ingestion(oral)

 

Dermal

: LD50>2000mg/kg(Rats)

 

Inhalation

: No data

 

Eye irritation

: Not an irritant

 

Skin irritation

: Not an irritant

 

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 (16mg/m3) exposure group, and a minimal to mild degree of fibrosis was noted in22% of the animals in

the middle (4mg/m3) exposure group, but no pulmonary change was

reported in the lowest (1mg/m3) exposure group, the most relevant level to potential human exposures.

12.ECOLOGICAL INFORMATION

No data are available.

13.DISPOSAL CONSIDERATIONS

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

Not classified as hazardous for transport.

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