Name: Chromium Powder
CAS: 7440-47-3
EC Number: 231-157-5
Chemical Formular: Cr
Appearance: Silvery Powder
Molecular Weight: 51.996 g/mol
Melting Point: 2180 K (1907 °C, 3465 °F)
Boiling Point: 2944 K (2671 °C, 4840 °F)
Density: 7.19 g/cm3
Solubility in water: n/a
Exact Mass: 51.940505 g/mol
Monoisotopic Mass: 51.940505 g/mol
Topological Polar Surface Area: 0 A^2
Complexity: 0
MATERIAL SAFETY DATA SHEETS
According to the UN GHS revision 8
SECTION 1: Identification
1.1
GHS Product identifier
| Product name | Chromium Powder |
|---|
1.2
Other means of identification
| Product number | – |
|---|---|
| Other names | – |
1.3
Recommended use of the chemical and restrictions on use
| Identified uses | Inorganic substances |
|---|---|
| Uses advised against | no data available |
1.4
Supplier’s details
| Company | Elements China Limited |
|---|---|
| Address | Building 2, No.5555, Shenzhuan Hwy, Shanghai , China |
| Telephone | +86-021-3776-2181 |
1.5Emergency phone number
| Emergency phone number | +86-021-3776-2181 |
|---|---|
| Service hours | Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours). |
SECTION 2: Hazard identification
2.1
Classification of the substance or mixture
Not classified.
2.2
GHS label elements, including precautionary statements
| Pictogram(s) | No symbol. |
|---|---|
| Signal word | No signal word |
| Hazard statement(s) | none |
| Precautionary statement(s) | |
| Prevention | none |
| Response | none |
| Storage | none |
| Disposal | none |
2.3
Other hazards which do not result in classification
no data available
SECTION 3: Composition/information on ingredients
3.1
Substances
| Chemical name | Common names and synonyms | CAS number | EC number |
|---|---|---|---|
| Chromium Powder | – | 7440-47-3 | 231-157-5 |
SECTION 4: First-aid measures
4.1
Description of necessary first-aid measures
If inhaled
Fresh air, rest.
Following skin contact
Remove contaminated clothes. Rinse skin with plenty of water or shower.
Following eye contact
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Following ingestion
Rinse mouth.
4.2
Most important symptoms/effects, acute and delayed
Exposure Routes: inhalation, ingestion, skin and/or eye contact Symptoms: Irritation eyes, skin; lung fibrosis (histologic) Target Organs: Eyes, skin, respiratory system (NIOSH, 2016)
4.3
Indication of immediate medical attention and special treatment needed, if necessary
Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. Inorganic acids and related compounds
SECTION 5: Fire-fighting measures
5.1
Suitable extinguishing media
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Wear self-contained breathing apparatus for firefighting if necessary.
5.2
Specific hazards arising from the chemical
Excerpt from ERG Guide 154 [Substances – Toxic and/or Corrosive (Non-Combustible)]: Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. For electric vehicles or equipment, ERG Guide 147 (lithium ion batteries) or ERG Guide 138 (sodium batteries) should also be consulted. (ERG, 2016)
5.3
Special protective actions for fire-fighters
In case of fire in the surroundings, use appropriate extinguishing media.
SECTION 6: Accidental release measures
6.1
Personal precautions, protective equipment and emergency procedures
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.
6.2
Environmental precautions
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting.
6.3
Methods and materials for containment and cleaning up
Collect spilled material in the most convenient & safe manner & deposit in sealed containers for reclamation or for disposal in a secured sanitary landfill. Liq containing chromium metal or insoluble chromium salts should be absorbed in vermiculite, dry sand, earth, or similar material.
SECTION 7: Handling and storage
7.1
Precautions for safe handling
If powder: NO open flames Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.
Handling in a well ventilated place.
Wear suitable protective clothing.
Avoid contact with skin and eyes.
Avoid formation of dust and aerosols.
Use non-sparking tools.
Prevent fire caused by electrostatic discharge steam.
7.2
Conditions for safe storage, including any incompatibilities
Keep container tightly closed in a dry and well-ventilated place.
SECTION 8: Exposure controls/personal protection
8.1
Control parameters
Occupational Exposure limit values
TLV: (as Cr(0), inhalable fraction): 0.5 mg/m3, as TWA
Biological limit values
no data available
8.2
Appropriate engineering controls
Ensure adequate ventilation.
Handle in accordance with good industrial hygiene and safety practice.
Set up emergency exits and the risk-elimination area.
8.3Individual protection measures, such as personal protective equipment (PPE)
Eye/face protection
Wear safety goggles.
Skin protection
Protective gloves.
Respiratory protection
Use local exhaust or breathing protection.
Thermal hazards
no data available
SECTION 9: Physical and chemical properties and safety characteristics
| Physical state | Solid. |
|---|---|
| Colour | Steel-gray, lustrous metal; body-centered cubic structure |
| Odour | Odorless |
| Melting point/freezing point | 1 863 °C. Atm. press.:1 atm. Remarks:Metals Handbook 1998.;1 857 °C. Remarks:Ullmann’s 2002.;1 907 °C. Remarks:Kirk-Othmer 2003. |
| Boiling point or initial boiling point and boiling range | 2 672 °C. Atm. press.:1 atm. Remarks:Metals Handbook 1998.;2 671 °C. Remarks:Kirk-Othmer 2003.;2 672 °C. Remarks:Ullmann’s 2002. |
| Flammability | Noncombustible Solid in bulk form, but finely divided dust burns rapidly if heated in a flame. |
| Lower and upper explosion limit/flammability limit | no data available |
| Flash point | 50 °F |
| Auto-ignition temperature | no data available |
| Decomposition temperature | no data available |
| pH | Bivalent chromium compounds are basic; trivalent chromium compounds are amphoteric; hexavalent chromium compounds are acidic |
| Kinematic viscosity | no data available |
| Solubility | Insoluble (NIOSH, 2016) |
| Partition coefficient n-octanol/water | no data available |
| Vapour pressure | 1 atm. Temperature:2 482 °C. Remarks:Metals Handbook 1998.;130 Pa. Temperature:1 610 °C. Remarks:Kirk-Othmer 2003. |
| Density and/or relative density | 7.19 g/cm³. Temperature:20 °C.;7.18 – 7.2 g/cm³. Temperature:20 °C. |
| Relative vapour density | no data available |
| Particle characteristics | no data available |
SECTION 10: Stability and reactivity
10.1
Reactivity
250 mg/cu m (as Cr(II)). Chromium(II) compounds (as Cr)
25 mg/cu m (as Cr(III)). Chromium(III) compounds (as Cr)
15 mg/cu m (as Cr(VI)). Chromic acid and chromates
NIOSH considers chromic acid and chromates to be potential occupational carcinogens. Chromic acid and chromates
Chromium is a catalytic substance and may cause reaction in contact with many organic and inorganic substances, causing fire and explosion hazard.
10.2
Chemical stability
Stable under recommended storage conditions.
10.3
Possibility of hazardous reactions
When finely divided burns rapidly if heated in flame.Dust explosion possible if in powder or granular form, mixed with air.CHROMIUM reacts violently with NH4NO3, N2O2, Li, NO, KClO3, SO2 (NTP, 1992). Metal dusts when suspended in atmospheres of carbon dioxide may ignite and explode.
10.4
Conditions to avoid
no data available
10.5
Incompatible materials
Molten lithium at 180 deg C attacks vanadium, beryllium, or chromium severely.
10.6
Hazardous decomposition products
no data available
SECTION 11: Toxicological information
Acute toxicity
- Oral: approximate LD50 – rat (male/female) – > 5 000 mg/kg bw.
- Inhalation: no data available
- Dermal: no data available
Skin corrosion/irritation
no data available
Serious eye damage/irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
EPA: Hexavalent chromium – inhalation – confirmed human carcinogen; oral – Not classifiable as to its carcinogenicity. There is inadequate or no human and animal evidence of carcinog. IARC: Hexavalent chromium – carcinogenic to humans. NTP: Known to be a human carcinogen
Reproductive toxicity
Chromium VI Limited information on the reproductive effects of chromium (VI) in humans exposed by inhalation suggest that exposure to chromium (VI) may result in complications during pregnancy and childbirth. Animal studies have not reported reproductive or developmental effects from inhalation exposure to chromium (VI). Oral studies have reported severe developmental effects in mice such as gross abnormalities and reproductive effects including decreased litter size, reduced sperm count, and degeneration of the outer cellular layer of the seminiferous tubules. Chromium III No information is available on the reproductive or developmental effects of chromium (III) in humans. A study of mice fed high levels of chromium (III) in their drinking water has suggested a potential for reproductive effects, although various study characteristics preclude a definitive finding. No developmental effects were reported in the offspring of rats fed chromium (III) during their developmental period.
STOT-single exposure
May cause mechanical irritation to the eyes and respiratory tract.
STOT-repeated exposure
no data available
Aspiration hazard
A harmful concentration of airborne particles can be reached quickly when dispersed.
SECTION 12: Ecological information
12.1
Toxicity
- Toxicity to fish: no data available
- Toxicity to daphnia and other aquatic invertebrates: no data available
- Toxicity to algae: no data available
- Toxicity to microorganisms: no data available
12.2
Persistence and degradability
no data available
12.3
Bioaccumulative potential
no data available
12.4
Mobility in soil
no data available
12.5
Other adverse effects
no data available
SECTION 13: Disposal considerations
13.1
Disposal methods
Product
The material can be disposed of by removal to
a licensed chemical destruction plant or by controlled incineration
with flue gas scrubbing. Do not contaminate water, foodstuffs,
feed or seed by storage or disposal. Do not discharge to sewer systems.
Contaminated packaging
Containers can be triply rinsed (or equivalent) and
offered for recycling or reconditioning.
Alternatively, the packaging can be punctured to
make it unusable for other purposes and then be disposed of
in a sanitary landfill. Controlled incineration
with flue gas scrubbing is possible for combustible packaging materials.
SECTION 14: Transport information
14.1
UN Number
| ADR/RID: Not dangerous goods. (For reference only, please check.) | IMDG: Not dangerous goods. (For reference only, please check.) | IATA: Not dangerous goods. (For reference only, please check.) |
14.2
UN Proper Shipping Name
| ADR/RID: Not dangerous goods. (For reference only, please check.) | IMDG: Not dangerous goods. (For reference only, please check.) | IATA: Not dangerous goods. (For reference only, please check.) |
14.3
Transport hazard class(es)
| ADR/RID: Not dangerous goods. (For reference only, please check.) | IMDG: Not dangerous goods. (For reference only, please check.) | IATA: Not dangerous goods. (For reference only, please check.) |
14.4
Packing group, if applicable
| ADR/RID: Not dangerous goods. (For reference only, please check.) | IMDG: Not dangerous goods. (For reference only, please check.) | IATA: Not dangerous goods. (For reference only, please check.) |
14.5
Environmental hazards
| ADR/RID: Yes | IMDG: Yes | IATA: Yes |
14.6
Special precautions for user
no data available
14.7
Transport in bulk according to IMO instruments
no data available
SECTION 15: Regulatory information
15.1
Safety, health and environmental regulations specific for the product in question
| Chemical name | Common names and synonyms | CAS number | EC number |
|---|---|---|---|
| Chromium Powder | – | 7440-47-3 | 231-157-5 |
| European Inventory of Existing Commercial Chemical Substances (EINECS) | Listed. | ||
| EC Inventory | Listed. | ||
| United States Toxic Substances Control Act (TSCA) Inventory | Listed. | ||
| China Catalog of Hazardous chemicals 2015 | Not Listed. | ||
| New Zealand Inventory of Chemicals (NZIoC) | Listed. | ||
| Philippines Inventory of Chemicals and Chemical Substances (PICCS) | Listed. | ||
| Vietnam National Chemical Inventory | Listed. | ||
| Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) | Listed. | ||
| Korea Existing Chemicals List (KECL) | Listed. | ||
SECTION 16: Other information
Information on revision
| Creation Date | Nov 16, 2020 |
|---|---|
| Revision Date | Nov 16, 2020 |
Abbreviations and acronyms
- CAS: Chemical Abstracts Service
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- IMDG: International Maritime Dangerous Goods
- IATA: International Air Transportation Association
- TWA: Time Weighted Average
- STEL: Short term exposure limit
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- EC50: Effective Concentration 50%
References
- IPCS – The International Chemical Safety Cards (ICSC), website:
http://www.ilo.org/dyn/icsc/showcard.home - HSDB – Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
- IARC – International Agency for Research on Cancer, website: http://www.iarc.fr/
- eChemPortal – The Global Portal to Information on Chemical Substances by OECD, website:
http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en - CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
- ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
- ERG – Emergency Response Guidebook by U.S. Department of Transportation, website:
http://www.phmsa.dot.gov/hazmat/library/erg - Germany GESTIS-database on hazard substance, website:
http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp - ECHA – European Chemicals Agency, website: https://echa.europa.eu/
Other Information
The surface of the chromium particles is oxidized to chromium(III)oxide in air.See ICSC 1531.
Any questions regarding this SDS, Please send your inquiry to [email protected]
Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and
shall be used only as a guide. The information in this document is based on the present state of our
knowledge and is applicable to the product with regard to appropriate safety precautions. It does not
represent any guarantee of the properties of the product. We as supplier shall not be held liable for any
damage resulting from handling or from contact with the above product.
| Chemical Formular: | Cr |
| PubChem CID: | 23976 |
| IUPAC Name: | chromium |
| Inchl: | InChI=1S/Cr |
| InChI Key: | VYZAMTAEIAYCRO-UHFFFAOYSA-N |
| Canonical SMILES: | [Cr] |
| Pictogram(s): |  |
| Signal: | Warning |
| GHS Hazard Statements: | H410 |
| Hazard Codes: | Xn:Harmful |
| Risk Codes: | R40 |
| Precautionary Statement Codes: | n/a |
| Flash Point: | n/a |
Chromium
Chrom
Chrome
Chromium compounds
cromo
Chromium metal
Chromium elemental
n/a
Chromium is a chemical element with the symbol Cr and atomic number 24. It is the first element in group 6.
It is a steely-grey, lustrous, hard and brittle transition metal.
Chromium is also the main additive in stainless steel, to which it adds anti-corrosive properties.
Chromium is also highly valued as a metal that is able to be highly polished while resisting tarnishing. Polished chromium reflects almost 70% of the visible spectrum, with almost 90% of infrared light being reflected.
The name of the element is derived from the Greek word χρῶμα, chrōma, meaning color, because many chromium compounds are intensely colored.
Chromium is a naturally occurring element found in rocks, animals, plants, soil, and in volcanic dust and gases. Chromium is present in the environment in several different forms. The most common forms are chromium(0), chromium(III), and chromium(VI).
No taste or odor is associated with chromium compounds. Chromium(III) occurs naturally in the environment and is an essential nutrient.
Chromium(VI) and chromium(0) are generally produced by industrial processes.
The metal chromium, which is the chromium(0) form, is used for making steel. Chromium(VI) and chromium(III) are used for chrome plating, dyes and pigments, leather tanning, and wood preserving.
Fiber drums, steel drums, and bulk bags
