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CAS Number: 7440-47-3
93-2458
Chromium › Chromium powder (99%)| CAS Number: | 7440-47-3 |
| MDL Number: | MFCD00010944 |
| Molecular Formula: | Cr |
| Molecular Weight: | 52.01 |
| Chemical Formula: | Cr |
| Color and Form: | -100 mesh |
| Note: |
Safety: Hazardous
Physical Characteristics: melting point 1890°C, boiling point 2200°C, density 7.20
| SECTION 1: Product Identification | |
|---|---|
| Chemical Name: | Chromium powder (99%) |
| Product Number: | 93-2458 |
| CAS Registry Number: | 7440-47-3 |
| Formula: | Cr |
| EINECS Number: | 231-157-5 |
| Chemical Family: | metal or element |
| Synonym: | none |
| SECTION 2: Composition and Information on Ingredients | ||||
|---|---|---|---|---|
| Ingredient | CAS Number | Percent | ACGIH (TWA) | OSHA (PEL) |
| Title Compound | 7440-47-3 | 100 | 0.5mg/m3 (as Cr) | 1mg/m3 (as Cr) |
| SECTION 3: Hazards Identification | |
|---|---|
| Emergency Overview: | May be irritating to skin, eyes, and respiratory tract. Inhalation hazard as a fine dust or fume. |
| Primary Routes of Exposure: | Ingestion, inhalation, skin, eyes. |
| Eye Contact: | May cause moderate irritation of the eyes. |
| Skin Contact: | May cause slight to mild irritation of the skin. |
| Inhalation: | May be irritating to the nose, mucous membranes and respiratory tract. |
| Ingestion: | No specific information is available on the physiological effects of ingestion. |
| Acute Health Effects: | May be irritating to skin, eyes, and respiratory tract. |
| Chronic Health Effects: | No information available on health effects of prolonged or repeated exposure . Carcinogenic if converted to hexavalent chromium. |
| NTP: | yes |
| IARC: | No |
| OSHA: | No |
| SECTION 4: First Aid Measures | |
|---|---|
| Eye Exposure: | Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need assistance in keeping their eye lids open. Get immediate medical attention. |
| Skin Exposure: | Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if irritation persists. |
| Inhalation: | Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance. |
| Ingestion: | Seek medical attention immediately. Keep victim calm. Give the victim water (only if conscious). Induce vomiting only if directed by medical personnel. |
| SECTION 5: Fire Fighting Measures | |
|---|---|
| Flash Point: | not applicable |
| Autoignition Temperature: | not applicable |
| Explosion Limits: | not applicable |
| Extinguishing Medium: | dry chemical or Class D metal fire agent |
| Special Fire Fighting Procedures: | If involved in a fire, firefighters should be equipped with a NIOSH approved positive pressure self-contained breathing apparatus and full protective clothing. |
| Hazardous Combustion and Decomposion Products: | None |
| Unusual Fire or Explosion Hazards: | Flammable. Dust may form explosive mixtures with air. |
| SECTION 6: Accidental Release Measures | |
|---|---|
| Spill and Leak Procedures: | Small spills can be mixed with vermiculite or sodium carbonate and swept up. |
| SECTION 7: Handling and Storage | |
|---|---|
| Handling and Storage: | Store in a tightly sealed container. Handle fine powders in a well-ventilated area. |
| SECTION 8: Exposure Controls and Personal Protection | |
|---|---|
| Eye Protection: | Always wear approved safety glasses when handling a chemical substance in the laboratory. |
| Skin Protection: | Wear protective clothing and gloves. |
| Ventilation: | Material may form or contain a fine dust that may become airborne during handling. If possible, handle the material in an efficient fume hood. |
| Respirator: | If handling material in the form of a fine dust and ventilation is not available, a respirator should be worn. The use of respirators requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134. |
| Additional Protection: | No additional protection required |
| SECTION 9: Physical and Chemical Properties | |
|---|---|
| Color and Form: | -100 mesh |
| Molecular Weight: | 52.01 |
| Melting Point: | 1890°C |
| Boiling Point: | 2200°C |
| Vapor Pressure: | 1mm (1617 °C) |
| Specific Gravity: | 7.2 |
| Odor: | none |
| Solubility in Water: | Insoluble |
| SECTION 10: Stability and Reactivity | |
|---|---|
| Stability: | Air and moisture stable solid. |
| Hazardous Polymerization: | no hazardous polymerization |
| Conditions to Avoid: | none |
| Incompatibility: | Mineral acids, halogens, sulfur and some oxidizing agents |
| Decomposition Products: | none |
| SECTION 11: Toxicological Information | |
|---|---|
| RTECS Data: | Unreported (rat); LD50: 27500 ug/kg. Intravenous (rat); TDLo: 2160 ug/kg/6W-I. Implant (rat); TDLo: 1200 ug/kg/6W-I. Implant (rabbit); TDLo: 75 mg/kg. |
| Carcinogenic Effects: | Equivocal tumorigen (implanted) |
| Mutagenic Effects: | No definitive data |
| Tetratogenic Effects: | No definitive data |
| SECTION 12: Ecological Information | |
|---|---|
| Ecological Information: | No data available |
| SECTION 13: Disposal Considerations | |
|---|---|
| Disposal: | Dispose of according to local, state and federal regulations. |
| SECTION 14: Transportation | |
|---|---|
| Shipping Name (CFR): | Metal powder, Flammable, N.O.S. |
| Hazard Class (CFR): | 4.1 |
| Additional Hazard Class (CFR): | NA |
| Packaging Group (CFR): | III |
| UN ID Number (CFR): | UN# 3089 |
| Shipping Name (IATA): | Metal powder, Flammable, N.O.S. |
| Hazard Class (IATA): | 4.1 |
| Additional Hazard Class (IATA): | NA |
| Packaging Group (IATA): | III |
| UN ID Number (IATA): | UN# 3089 |
| SECTION 15: Regulatory Information | |
|---|---|
| TSCA: | Listed in the TSCA inventory |
| SARA (Title 313): | Reportable under SARA Title 313. |
| Second Ingredient: | none |
| Third Ingredient: | none |
| SECTION 16: Other Information | |
|---|---|
| Disclaimer: | The information herein is believed to be accurate and reliable as of the date compiled. However, Strem Chemicals, Inc. makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information. |
| Preparation Date: | 12/10/2000 |
| Revision Date: | 12/14/2011 |
