MATERIAL SAFETY DATA SHEET

I.   PRODUCT IDENTIFICATION

Manufacturer/Supplier:

ESPI Metals

1050 Benson Way, Ashland, OR 97520

Toll Free (800) 638-2581 * Fax (541) 488-8313

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Product Name:     Chromium Phosphide

Formula:              CrP

CAS Number:       26342-61-0

II.   HAZARDOUS INGREDIENTS

Hazardous Components:   Chromium Phosphide

Percent (%):                     0-100

OSHA PEL:                         0.5 mg(Cr)/m³

ACGIH/TLV:                       0.5 mg(Cr)/m³

HMIS Ratings:

Health:                              2

Flammability:                   0

Reactivity:                        0

III.   PHYSICAL DATA

Boiling Point:                    N/E or N/A

Melting Point:                   N/E or N/A

Specific Gravity:              5.7 g/cc

Solubility in H₂O:             Insoluble                                                              

Appearance and Odor:    Gray black powder and pieces, no odor.

IV.   FIRE AND EXPLOSION HAZARDS DATA

Flash Point:  N/A

Autoignition Temperature:  N/A

Flammable Limits:  Upper:  N/A       Lower:  N/A

Extinguishing Media:  Use suitable extinguishing media for surrounding materials and type of fire.

Special Firefighting Procedures:  Firefighters must wear full face, self-contained breathing apparatus with full protective clothing to prevent contact with skin and eyes.

Unusual Fire & Explosion Hazard:  When heated to decomposition this material may emit toxic fumes of PO_x.  On contact with acid or acid fumes, it may produce toxic and flammable phosphine gas.

V.   HEALTH HAZARD INFORMATION

Effects of Exposure:

To the best of our knowledge the chemical, physical, and toxicological properties of chromium phosphide have not been thoroughly investigated and reported.

Chromium is a confirmed carcinogen with experimental tumorigenic data.  Mutation data reported.  Chromate salts are suspected human carcinogens producing tumors of the lungs, nasal cavity, and paranasal sinus.  Chromic acid and its salts have a corrosive effect of the skin and mucous membranes.  The lesions are confined to the exposed parts, affecting chiefly the skin of the hands and forearms and the mucous membranes of the nasal septum.  Hexavalent compounds are more toxic than the trivalent.  (Sax, Dangerous Properties of Industrial Materials.)

Acute Effects:

Inhalation:  May cause a red, dry throat, dizziness, headache, fatigue and difficulty breathing.

Ingestion:  May cause gastrointestinal disorders.

Skin:  May cause irritation.

Eye:  May cause irritation.

Chronic Effects:

Inhalation:  May cause pulmonary edema, histologic fibrosis of lungs, nasal and/or lung cancer.

Ingestion:  May cause damage to the liver and kidneys.

Skin:  No chronic health effects recorded.

Eye:  No chronic health effects recorded.

Target Organs:  May affect the liver, kidneys and respiratory system.

Medical Conditions Generally Aggravated by Exposure:  Pre-existing respiratory disorders, pulmonary functions and asthma.

Carcinogenicity:  NTP:  Yes              IARC:  Yes            OSHA:  Yes

EMERGENCY AND FIRST AID PROCEDURES:

INHALATION:  Remove to fresh air, keep warm and quiet, give oxygen if breathing is difficult and seek medical attention.

INGESTION:  Give 1-2 glasses of milk or water and induce vomiting.  Seek immediate medical advice.  Never induce vomiting or give anything by mouth to an unconscious person.

SKIN:  Remove contaminated clothing, brush materia off skin, wash affected area with water and soap and rinse thoroughly.  Seek medical attention if symptoms persist.

EYES:  Flush eyes with plenty of water, lifting upper and lower eyelids for at least 15 minutes.  Seek medical attention if symptoms persist.

VI.   REACTIVITY DATA

Stability:  Stable

Conditions to Avoid:  None

Incompatibility (Material to Avoid):  Acids

Hazardous Decomposition Products:  Phosphine gas and oxides of phosphorus.

Hazardous Polymerization:  Will not occur.

VII.   SPILL OR LEAK PROCEDURES

Steps to Be Taken in Case Material Is Released or Spilled:  Wear appropriate respiratory and protective equipment specified in section VIII.  Isolate spill area and provide ventilation.  Vacuum up spill using a high efficiency particulate absolute (HEPA) air filter and place in a closed container for proper disposal.  Take care not to raise dust.

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

VIII.   SPECIAL PROTECTION INFORMATION

Respiratory Protection:  NIOSH approved dust respirator.

Ventilation:  Use local exhaust ventilation to meet PEL’s and TLV’s.  General exhaust is recommend.

Protective Gloves:  Rubber gloves

Face Protection:  Safety glasses

Other Protective Clothing or Equipment:  Protective gear suitable to prevent contamination.

IX.   SPECIAL PRECAUTIONS

Precautions to Be Taken in Handling and Storage:  Store in tightly closed containers in a cool, dry place.  Do not store together with acidic materials.  Wash thoroughly after handling.

Work Practices:  Implement engineering and work practice controls to reduce and maintain concentration of exposure at low levels.  Use good housekeeping and sanitation practices.  Do not use tobacco or food in work area.  Wash thoroughly before eating or smoking.  Do not blow dust off clothing or skin with compressed air.  Maintain eyewash capable of sustained flushing, safety drench shower and facilities for washing.

DOT Regulations:

Hazard Class:       None

The above information is believed to be correct, but does not purport to be all inclusive and shall be used only as a guide.  ESPI shall not be held liable for any damage resulting from handling or from contact with the above product.

Issued by:                            S. Dierks

Revised/Verified:                  June 2007