MATERIAL SAFETY DATA SHEET







I       PRODUCT IDENTIFICATION



Trade Name:               Indium Phosphide                                     Synonyms:                 Indium Monophosphide

Chemical Family:          Metal Phosphide                                      Chemical Formula:         InP





II      HAZARDOUS INGREDIENTS



TLV (Units): Not Set 0.1 mg/m3 (In), 0.1 mg/m3 (P4)                            OSHA PEL: Not Set 0.1 mg/m3 (P4)



HMIS Hazard Rating: Health: 3               Flammability: 2            Reactivity: 2            Personal Protection: X





III     PHYSICAL DATA



                                                                                                1070 oC

Boiling Point:            No data                                              Melting Point:

Reaction with H2O:        No data (may form PH3)                               Density:         No data

Solubility in H2O:        No data (may form PH3)                               Comments:        Slightly soluble in mineral acids.

Appearance and Odor:      Brittle mass with metallic appearance, odorless.





IV      FIRE AND EXPLOSION HAZARDS DATA



Flash Point: N/A                                                               Autoignition Temperature: N/A

Flammability: Hazard on contact with water/moisture.



Extinguishing Media: Do not use water, use dry chemical, CO2.

Special Fire Fighting Procedures: Wear a self-contained breathing apparatus and full protective clothing to prevent contact with

skin and eyes.



Unusual Fire & Explosion Hazards: Can react with moisture or acids to liberate phosphine (PH3), which is a fire and explosion

hazard. When heated to decomposition, it may emit toxic fumes of POx.





V       HEALTH HAZARD INFORMATION



Toxicity Data: No specific data for this compound



In Data:          scu-mus LDLO: 10 mg/kg

PH3 Data:         ihl-hmn LCLO: 1000 ppm              orl-rat LD50: 12 mg/kg                    ihl-rat LC50: 11 ppm/4H

                 scu-dog LDLO: 2 mg/kg                scu-rbt LDLO: 10 mg/kg



Routes of Entry: Inhalation: Yes            Skin: Yes         Ingestion: Yes



Medical Conditions Generally Aggravated by Exposure: Respiratory disorders.

Carcinogenicity: None NTP? No          IARC Monographs? No              OSHA Regulated? No

Effects of Over Exposure:



Inhalation: May cause sneezing, coughing, difficulty breathing and irritation of the mucous membrane of the respiratory tract.

Dermal/Eye Contact: Dermal: May cause irritation, itching and dermatitis. Eye: May cause burning sensation, irritation, redness

and watering of the eyes if comes in contact.

Other: In Compounds: Highly toxic via subcutaneous and moderately toxic via oral routes. Symptoms of acute indium intoxication

are anorexia, localized convulsive motions, hind-leg paralysis, pulmonary edema, necrotizing pneumonia, and renal and hepatic

damage with resultant dysfunction. Chronic indium intoxication leads to weight loss, poor growth, and extensive necrotic damage to

the liver and kidneys.



Phosphides:



         Phosphides are particularly dangerous because they tend to decompose to phosphine upon contact with moisture or acids.

Phosphine is a very toxic gas. It appears to cause, chiefly, a depression of the CNS and irritation of the lungs. Inhalation of phos-

phine causes restlessness, followed by tremors, fatigue, slight drowsiness, nausea, vomiting and frequently, severe gastric pain and

diarrhea. There is often headache, thirst, dizziness, oppression in the chest and burning substernal pain; later the patient may become

dyspneic and develop cough and sputum. Coma or convulsions may precede death. Chronic poisoning, characterized by anemia,

bronchitis, gastrointestinal disturbances and visual, speech and motor disturbances may result from continued exposure to low

concentrations.



EMERGENCY AND FIRST AID PROCEDURES:



EYES: Flush eyes with lukewarm water for 15 minutes. Seek medical attention.

SKIN: Brush material off of skin. Wash affected area with soap and water. Seek medical attention.

INHALATION: Remove victim to fresh air. Administer oxygen if breathing is difficult. Seek medical attention.

INGESTION: Give 1-2 glasses of milk or water and induce vomiting. Seek immediate medical attention.





VI       REACTIVITY DATA



Stability: Unstable

Incompatibility (Material to avoid): Strong acids, strong bases, oxidants, moisture/water.



Hazardous Decomposition Products: In, InOx, P, POx, PH3.

Hazardous Polymerization: Will not occur.

Conditions to Avoid: Heat, flame and incompatible materials.





VII      SPILL OR LEAK PROCEDURES



Steps to Be Taken in Case Material Is Released or Spilled: Wear a self-contained breathing apparatus and full protective clothing.

Isolate the area where the spill occurred and insure that proper ventilation is available. Vacuum up spill using a high efficiency unit

and place in a container for proper disposal. Take care not to raise dust. Insure that water/moisture is kept out of the area.



Waste Disposal Method: In accordance with Local, State and Federal Waste Disposal Regulations.





VIII     SPECIAL PROTECTION INFORMATION



Respiratory Protection (Specify Type): Wear NIOSH-approved dust mist-fume cartridge respirator.

Ventilation: Local Exhaust: Maintain exposure below TLV level for P4 & In.        Mechanical: Not recommended.

Special: Handle in a dry, inert controlled environment.



Eye Protection: Safety glasses.                                                      Protective Gloves: Neoprene

Other Protective Equipment: Wear protective clothing to prevent contamination of skin and clothes.

IX       SPECIAL PRECAUTIONS



Precautions to Be Taken in Handling and Storage:



•Wash thoroughly after handling.

•Store in tightly closed containers, in a cool, dry place.





Prepared By:       S. Dierks

Date:              March 1994