S H A R P

Date Revised :July. 22, 2002

Date Issued :May. 28, 1998

MATERIAL SAFETY DATA SHEET (2/3)

MSDS No. B-1020

Section 8. Exposure Control/Personal Protection

Engineering Measures

Ventilation: None required with intended use.

Control Parameters(As total dust)

OSHA-PEL(USA): 15mg/m3

ACGIH-TLV(USA): 10mg/m3 DFG-MAK(GER): 6mg/m3 Worksafe-TWA(Austl.): 10mg/m3

Personal Protective Equipment Personal Protective Equipment

None required when used as intended in Sharp equipment. For use other than normal customer-operating procedures (such as in bulk toner processing facilities), goggles and respirators may be required.

Hygiene Measures: Wash hands after handling.

Section 9. Physical and Chemical Properties

Appearance

Form: Powder

Color: Black

 

Physical State: Solid

No data available

Odor:

 

Faint odor

Explosion Properties:

Particle Size(µm):

 

5 - 15

Density(g/cm3):

1.2 (bulk density: 0.5)

Boiling Point:

 

Not applicable

Solubility in water:

Negligible

Melting Point(°C):

 

No data available

Oxidizing Properties:

No data available

Softening Point(°C):

 

120 - 130 *

Ignition Temperature(°C):

450 *

Flash Point:

 

Not applicable

Vapor Pressure:

Not applicable

pH:

 

Not applicable

 

 

Partition Coefficient, n-Octanol/Water:

Not applicable

 

 

Section 10. Stability and Reactivity

 

 

Stability: Stable [ X ]

Unstable [

]

 

 

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

 

 

Section 11. Toxicological Information

Health Effects from Exposure: No symptoms expected with intended use. Toxicological Data

Acute Toxicity:

Inhalation, LC50(mg/l): >0.74 (Rats,4hour exposure) * (This was the highest attainable concentration.)

Ingestion(oral), LD50(mg/kg): >5000 (Rats) *

Dermal, LD50(mg/kg): >2000 (Rats) *

Eye irritation: Non irritant (Rabbits) *

Skin irritation: Non irritant (Rabbits) *

Skin sensitizer: No data available Mutagenicity: Negative * (AMES test)

(*= Based on data for other Products with similar ingredients) Local Effects: see Chronic Toxicity or Long term Toxicity

Chronic Toxicity or Long Term Toxicity: Prolonged inhalation of excessive dust may cause lung damage. It is attributed to "lung overloading", a generic response to excessive amounts of any dust retained in the lungs for a prolonged interval. Use of this product, as intended, does not result in inhalation of excessive dust.

In a study in rats by chronic inhalation exposure to a typical toner, a mild to moderate degree of lung fibrosis was observed in 92% of rats in the high concentration(16mg/m3) exposure group, and a minimal to mild degree of fibrosis was noted in 22% 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.

Carcinogenicity

IARC Monographs: Not listed

NTP(USA): Not listed

OSHA Regulated(USA): Not listed

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In 1996 the IARC reevaluated carbon black as a Group 2B carcinogen (possible human carcinogen). This valuation is given to Carbon Black for which there is inadequate human evidence, but sufficient animal evidence. The latter 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 have not demonstrated an 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.