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

Formula:             Cr

CAS Number:      7440-47-3

II.   HAZARDOUS INGREDIENTS

Hazardous Component:      Chromium

Percent (%):                       0-100

OSHA/PEL:                          1 mg/m3

ACGIH/TLV:                         0.5 mg/m3

HMIS Ratings(Powder):

Health:                                2

Flammability:                     3

Reactivity:                          0

III.   PHYSICAL DATA

Boiling Point:                     2672 ^oC

Melting Point:                    1857 ^oC

Specific Gravity:                7.20 g/cc  at 28 ^oC

Solubility in H₂O:               Insoluble

Appearance and Odor:       Steel gray, lustrous metal, no odor.

IV.   FIRE AND EXPLOSION HAZARDS DATA

Flash Point: N/A

Autoignition Temperature: 400 ^oC (powder)

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

Extinguishing Media: Powder: Use class D or other suitable agent for metal fires.

Special Fire Fighting Procedures: Wear NIOSH/MSHA approved self contained breathing apparatus and protective clothing. Fumes from fire are hazardous. Isolate runoff to prevent environmental pollution.

Unusual Fire & Explosion: Ignites and is potentially explosive in atmospheres of carbon dioxide. Chromium reacts violently or explosively when heated with ammonium nitrate and bromine pentafluoride. It has an incandescent reaction with nitrogen oxide or sulfur dioxide. Powders prepared by evaporation of mercury from chromium amalgam may be pyrophoric.

V.   HEALTH HAZARD INFORMATION

Effects of Exposure:

Chromium is a confirmed human carcinogen with experimental tumorigenic data. Also a human poison by ingestion with gastrointestinal effects.

Acute Effects:

Inhalation: May cause a red, dry throat.

Ingestion: May cause gastrointestinal disorders.

Skin: May cause abrasive irritation.

Eye: May cause abrasive irritation.

Chronic Effects:

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

Ingestion: None recorded.

Skin: None recorded.

Eye: None recorded.

Target Organs: May affect the respiratory system.

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

Carcinogenicity: NTP:  Yes          IARC:  No         OSHA:  No

EMERGENCY AND FIRST AID PROCEDURES:

INHALATION: Remove victim 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 medical attention immediately. Never induce vomiting or give anything by mouth to an unconscious person.

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

EYE: Flush with lukewarm 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: Grinding, crushing, and melting may produce dust and fumes which may require control.

Incompatibility (Material to Avoid): Powder incompatible with ammonium nitrate, hydrogen peroxide, nitric oxide, potassium chlorate, sulfur dioxide, mercury. Otherwise, avoid strong oxidizing agents, ammonium nitrite, bromine pentafluoride and carbon dioxide.

Hazardous Decomposition Products: Toxic chromium oxides fumes

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-Special Protection Information. Isolate spill area, provide ventilation and extinguish sources of ignition. 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. Use non-sparking tools.

Waste Disposal Method: Consult Local, State, and Federal Regulations for proper disposal procedures.

VIII.   SPECIAL PROTECTION INFORMATION

Respiratory Protection: NIOSH approved respirator for dusts and mists.

Ventilation: Use local exhaust to maintain concentration at or below PEL, TLV levels.

Protective Gloves: Rubber gloves

Eye Protection: Safety glasses

Other Protective Equipment: Protective gear suitable to prevent contamination.

IX. SPECIAL PRECAUTIONS

Precautions to Be Taken in Handling and Storage: Store in cool, dry area. Store in tightly sealed container. Protect against physical damage. Store away from acids and oxidizers. Wash thoroughly after handling.

Precautionary Labeling: CAUTION! Do not swallow or inhale. Avoid contact with skin and eyes. Wash Thoroughly after handling. Keep container closed.

Work Practices: Implement engineering and work practice controls to reduce and maintain concentration of exposure. 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:

Solid Forms:

         Hazard Class:                  None

Powders:

         Hazard Class:                  4.1

         Identification Number:   UN3089

         Packing Group:               III

         Proper Shipping Name:   Metal powder, flammable, n.o.s. (chromium)

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 2011