MATERIAL SAFETY DATA SHEET







I       PRODUCT IDENTIFICATION



Trade Name:      Indium Antimonide                                             CAS #:1312-41-0





II      HAZARDOUS INGREDIENTS



Component:                Percent:           PEL:                              TLV:

                                             0.5 mg Sb/m3, 0.1 mg In/m3        0.5 mg Sb/m3, 0.5 mg In/m3

Indium Antimonide         100





III     PHYSICAL DATA



                                                                                                           535 oC

Boiling Point 760 mm Hg:             No data                                     Freezing/Melting Point:

Specific Gravity (H2O=1):            5.75 (solid); 6.48 (liquid)                 Evaporation Rate:         N/A

% Volatile by Volume:                N/A                                         Vapor Pressure:           N/A

Reaction with H2O:                   None                                        Solubility in H2O:        Insoluble

Appearance and Odor:                 Silvery metal-like pieces or powder; odor not known.





IV      FIRE AND EXPLOSION HAZARDS DATA



Flash Point (Method used): N/A



Special Fire Fighting Procedures: Indium antimonide will melt and fume in air at 500 oC. Antimony trioxide will be liberated. Use

normal firefighting procedures which include wearing NIOSH/MSHA approved self-contained breathing apparatus, flame and

chemical resistant clothing: hats, boots and gloves. If without risk remove material from fire area.



Extinguishing Media: Non-flammable. If involved in a fire, use dry chemical extinguishing agents, dry sand, or dry ground dolo-

mite.



Unusual Fire and Explosion Hazards: N/A





V       HEALTH HAZARD INFORMATION



OSHA (PEL): 0.5 mg Sb/m3; 0.1 mg In/m3                                         ACGIH (TLV): 0.5 mg Sb/m3; 0.1 mg In/m3



Acute Effects:

Ingestion: None known. May cause effects similar to those of acute inhalation.

Skin Contact: May cause irritation.                                            Eye Contact: May cause irritation.

Inhalation: May cause irritation. Dust or fumes may cause antimony nausea, vomiting, bloody diarrhea, dizziness, irritability, and

muscle pains. May cause liver damage.



Medical Conditions Aggravates by Chemical: None known.

Other Health Hazards: None known.

Most Likely Route of Entry: Ingestion.



Chronic Effects:

Ingestion: None known                                                       Skin Contact: May cause dermatitis

Eye Contact: None known

Inhalation: In humans exposed to antimony oxide fumes complaints referable to the nervous system have been reported.

Other: Animals exposed to antimony oxide fumes have developed

Effects of Over Exposure:



Inhalation: Overexposure to fused silica dust or condensed silica vapors for an extended period of time may produce lung injury.

Symptoms include coughing, wheezing and difficulty in breathing.



Ingestion: No adverse effects anticipated since material is insoluble and nontoxic.

Skin Contact: No adverse effects anticipated.

Eye Contact: Irritation due to mechanical abrasion.



EMERGENCY AND FIRST AID PROCEDURES:



EYE CONTACT: Flush eyes with water to remove particles.





IV       REACTIVITY DATA



Stability: Stable

Incompatibility (Material to Avoid): N/A

Hazardous Polymerization: Will not occur





VII      SPILL OR LEAK PROCEDURES



Steps to Be Taken in Case Material Is Released or Spilled: Use normal clean-up procedures, using a broom or vacuum, taking care

to avoid excessive dusting.



Waste Disposal Method: Dispose of in accordance with Local, State and Federal Waste Disposal Regulations.





VIII     SPECIAL PROTECTION INFORMATION



Respiratory Protection: If exposure may exceed permissible limits, use a NIOSH-approved respirator for dust having a TLV not

less than 0.05 mg/m3. Always observe respirator limitations.



Ventilation Requirements: For cutting or grinding operations, use local exhaust ventilation if necessary, to keep exposure levels

below permissible limits.





IX       SPECIAL PRECAUTIONS



Precautions to Be Taken in Handling and Storage: Normal precautions for handling potentially sharp, broken edged material.





Prepared by:      S. Dierks

Dated:            December 1993