Chromium Metal

CAS 7440-47-3
Linear Formula: Cr
MDL Number: MFCD00010944
EC No.: 231-157-5

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PRODUCT PRODUCT CODE REQUEST A QUOTE SAFETY DATA TECHNICAL DATA
(2N) 99% Chromium Metal
CR-M-02 Pricing
(3N) 99.9% Chromium Metal
CR-M-03 Pricing
(4N) 99.99% Chromium Metal
CR-M-04 Pricing
(5N) 99.999% Chromium Metal
CR-M-05 Pricing

Properties

Molecular Weight 52
Appearance Silvery
Melting Point 1857 °C
Boiling Point 2672 °C
Density 7.18 g/cm3
Thermal Expansion

(25 °C) 4.9 µm·m-1·K-1

Poisson Ratio 0.21
Vickers Hardness 1060 MN m-2
Young's Modulus 279 GPa
Tensile Strength N/A
Thermal Conductivity 0.939 W/cm/K @ 298.2 K
Electronegativity 1.6 Paulings
Specific Heat 0.107 Cal/g/K @ 25 °C
Heat of Vaporization 72.97 K-cal/gm atom at 2672 °C
Heat of Fusion 3.66 Cal/gm mole

Health & Safety Information

Signal Word Warning
Hazard Statements H400
Hazard Codes N/A
Risk Codes N/A
Safety Statements N/A
RTECS Number GB4200000
Transport Information N/A
WGK Germany 3

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SAFETY DATA SHEET

Date Accessed: 08/24/2016
Date Revised: 05/15/2015

SECTION 1. IDENTIFICATION

Product Name: Chromium Metal

Product Number: All applicable American Elements product codes, e.g. CR-M-02 , CR-M-03 , CR-M-04 , CR-M-05

CAS #: 7440-47-3

Relevant identified uses of the substance: Scientific research and development

Supplier details:
American Elements
1093 Broxton Ave. Suite 2000
Los Angeles, CA 90024
Tel: +1 310-208-0551
Fax: +1 310-208-0351

Emergency telephone number:
Domestic, North America +1 800-424-9300
International +1 703-527-3887


SECTION 2. HAZARDS IDENTIFICATION

Classification of the substance or mixture
Classification according to Regulation (EC) No 1272/2008
The substance is not classified as hazardous to health or the environment according to the CLP regulation.
Classification according to Directive 67/548/EEC or Directive 1999/45/EC
Not applicable
Information concerning particular hazards for human and environment:
No information known.
Hazards not otherwise classified
No information known.
Label elements
Labelling according to Regulation (EC) No 1272/2008
Not applicable
Hazard pictograms
Not applicable
Signal word
Not applicable
Hazard statements
Not applicable
WHMIS classification
Not controlled
Classification system
HMIS ratings (scale 0-4)
(Hazardous Materials Identification System)
HEALTH
FIRE
REACTIVITY



Health (acute effects) = 0
Flammability = 0
Physical Hazard = 0
Other hazards
Results of PBT and vPvB assessment
PBT:
Not applicable.
vPvB:
Not applicable.


SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS

Chemical characterization: Substances
CAS# Description:
7440-47-3 Chromium
Identification number(s):
EC number: 231-157-5


SECTION 4. FIRST AID MEASURES

Description of first aid measures
General information No special measures required.
After inhalation Seek medical treatment in case of complaints.
After skin contact Generally the product does not irritate the skin.
After eye contact
Rinse opened eye for several minutes under running water. If symptoms persist, consult a doctor.
After swallowing If symptoms persist consult doctor.
Information for doctor
Most important symptoms and effects, both acute and delayed
No further relevant information available.
Indication of any immediate medical attention and special treatment needed
No further relevant information available.


SECTION 5. FIREFIGHTING MEASURES

Extinguishing media
Suitable extinguishing agents Special powder for metal fires. Do not use water.
For safety reasons unsuitable extinguishing agents Water
Special hazards arising from the substance or mixture
In case of fire, the following can be released:
Toxic metal oxide fume
Advice for firefighters
Protective equipment: No special measures required.


SECTION 6. ACCIDENTAL RELEASE MEASURES

Personal precautions, protective equipment and emergency procedures Not required.
Environmental precautions:
Do not allow material to be released to the environment without proper governmental permits.
Methods and material for containment and cleaning up: Pick up mechanically.
Reference to other sections
See Section 7 for information on safe handling
See Section 8 for information on personal protection equipment.
See Section 13 for disposal information.


SECTION 7. HANDLING AND STORAGE

Handling
Precautions for safe handling
Keep container tightly sealed.
Store in cool, dry place in tightly closed containers.
Information about protection against explosions and fires:
No special measures required.
Conditions for safe storage, including any incompatibilities
Storage
Requirements to be met by storerooms and receptacles:
No special requirements.
Information about storage in one common storage facility:
No information known.
Further information about storage conditions:
Keep container tightly sealed.
Store in cool, dry conditions in well sealed containers.
Specific end use(s)
No further relevant information available.


SECTION 8. EXPOSURE CONTROLS/PERSONAL PROTECTION

Additional information about design of technical systems:
No further data; see section 7.
Control parameters
Components with limit values that require monitoring at the workplace:
7440-47-3 Chromium (100.0%)
PEL (USA) Long-term value: 1* 0.5** mg/m³
*metal;**inorganic compds., as Cr
REL (USA) Long-term value: 0.5* mg/m³
*metal+inorg.compds.as Cr;See Pocket Guide App. C
TLV (USA) Long-term value: 0.5 mg/m³
EL (Canada) Short-term value: C 0.1*** ppm
Long-term value: 0.5* 0.01** 0.025*** mg/m³
IARC1,ACGIH A1;*metal, i
norg.**insol.;**water-sol.
EV (Canada) Long-term value: 0.05 mg/m³
Additional information:
No data
Exposure controls
Personal protective equipment
General protective and hygienic measures
The usual precautionary measures for handling chemicals should be followed.
Maintain an ergonomically appropriate working environment.
Breathing equipment:
Not required.
Protection of hands:
Not required.
Penetration time of glove material (in minutes)
Not determined
Eye protection:
Safety glasses
Body protection:
Protective work clothing.


SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES

Information on basic physical and chemical properties
General Information
Appearance:
Form: Solid in various forms
Color: Grey
Odor: Odorless
Odor threshold: Not determined.
pH-value: Not applicable.
Change in condition
Melting point/Melting range: 1907 °C (3465 °F)
Boiling point/Boiling range: 2671 °C (4840 °F)
Sublimation temperature / start: Not determined
Flammability (solid, gaseous)
Not determined.
Ignition temperature: Not determined
Decomposition temperature: Not determined
Auto igniting: Not determined.
Danger of explosion: Not determined.
Explosion limits:
Lower: Not determined
Upper: Not determined
Vapor pressure at 20 °C (68 °F): 0 hPa
Density at 20 °C (68 °F): 7.19 g/cm³ (60.001 lbs/gal)
Bulk density at 20 °C (68 °F): 3300 kg/m³
Relative density
Not determined.
Vapor density
Not applicable.
Evaporation rate
Not applicable.
Solubility in / Miscibility with Water: Insoluble
Partition coefficient (n-octanol/water): Not determined.
Viscosity:
dynamic: Not applicable.
kinematic: Not applicable.
Other information
No further relevant information available.


SECTION 10. STABILITY AND REACTIVITY

Reactivity
No information known
Chemical stability
Stable under recommended storage conditions.
Thermal decomposition / conditions to be avoided:
Decomposition will not occur if used and stored according to specifications.
Possibility of hazardous reactions
No dangerous reactions known
Conditions to avoid
No further relevant information available.
Incompatible materials:
No information known.
Hazardous decomposition products:
Toxic metal oxide fume


SECTION 11. TOXICOLOGICAL INFORMATION

Information on toxicological effects
Acute toxicity:
The Registry of Toxic Effects of Chemical Substances (RTECS) contains acute toxicity data for components in this product.
LD/LC50 values that are relevant for classification:
No data
Skin irritation or corrosion:
Generally the product does not irritate the skin.
Eye irritation or corrosion:
May cause irritation
Sensitization:
No sensitizing effects known.
Germ cell mutagenicity:
The Registry of Toxic Effects of Chemical Substances (RTECS) contains mutation data for this substance.
Carcinogenicity:
IARC-3: Not classifiable as to carcinogenicity to humans.
ACGIH A4: Not classifiable as a human carcinogen: Inadequate data on which to classify the agent in terms of its carcinogenicity in humans and/or animals.
(inhalation) EPA-A: human carcinogen: sufficient evidence from epidemiologic studies to support a causal association between exposure and cancer.
(inhalation) EPA-K: Known human carcinogens.
(oral) EPA-D: Not classifiable as to human carcinogenicity: inadequate human and animal
evidence of carcinogenicity or no data are available.
(oral) EPA-CBD: Carginogenic potential cannot be determined.
The Registry of Toxic Effects of Chemical Substances (RTECS) contains tumorigenic and/or carcinogenic and/or neoplastic data for this substance.
Reproductive toxicity:
The Registry of Toxic Effects of Chemical Substances (RTECS) contains reproductive data for this substance.
Specific target organ system toxicity - repeated exposure:
No effects known.
Specific target organ system toxicity - single exposure:
No effects known.
Aspiration hazard:
No effects known.
Subacute to chronic toxicity:
No effects known.
Additional toxicological information:
To the best of our knowledge the acute and chronic toxicity of this substance is not fully known.


SECTION 12. ECOLOGICAL INFORMATION

Toxicity
Aquatic toxicity:
No further relevant information available.
Persistence and degradability
No further relevant information available.
Bioaccumulative potential
No further relevant information available.
Mobility in soil
No further relevant information available.
Additional ecological information:
General notes:
Do not allow material to be released to the environment without proper governmental permits.
Do not allow undiluted product or large quantities to reach ground water, water course or sewage system.
Avoid transfer into the environment.
Results of PBT and vPvB assessment
PBT:
Not applicable.
vPvB:
Not applicable.
Other adverse effects
No further relevant information available.


SECTION 13. DISPOSAL CONSIDERATIONS

Waste treatment methods
Recommendation
Consult state, local or national regulations to ensure proper disposal.
Uncleaned packagings:
Recommendation:
Disposal must be made according to official regulations.


SECTION 14. TRANSPORT INFORMATION

UN-Number
DOT, ADN, IMDG, IATA
Not applicable
UN proper shipping name
DOT, ADN, IMDG, IATA
Not applicable
Transport hazard class(es)
DOT, ADR, ADN, IMDG, IATA
Class
Not applicable
Packing group
DOT, IMDG, IATA
Not applicable
Environmental hazards:
Not applicable.
Special precautions for user
Not applicable.
Transport in bulk according to Annex II of MARPOL73/78 and the IBC Code
Not applicable.
Transport/Additional information:
DOT
Marine Pollutant (DOT):
No


SECTION 15. REGULATORY INFORMATION

Safety, health and environmental regulations/legislation specific for the substance or mixture
National regulations
All components of this product are listed in the U.S. Environmental Protection Agency Toxic Substances Control Act Chemical substance Inventory.
All components of this product are listed on the Canadian Domestic Substances List (DSL).
SARA Section 313 (specific toxic chemical listings)
7440-47-3 Chromium
California Proposition 65
Prop 65 - Chemicals known to cause cancer
Substance is not listed.
Prop 65 - Developmental toxicity
Substance is not listed.
Prop 65 - Developmental toxicity, female
Substance is not listed.
Prop 65 - Developmental toxicity, male
Substance is not listed.
Information about limitation of use:
For use only by technically qualified individuals.
Other regulations, limitations and prohibitive regulations
Substance of Very High Concern (SVHC) according to the REACH Regulations (EC) No. 1907/2006.
Substance is not listed.
The conditions of restrictions according to Article 67 and Annex XVII of the Regulation (EC) No 1907/2006 (REACH) for the manufacturing, placing on the market and use must be observed.
Substance is not listed.
Annex XIV of the REACH Regulations (requiring Authorisation for use)
Substance is not listed.
REACH - Pre-registered substances
Substance is listed.
Chemical safety assessment:
A Chemical Safety Assessment has not been carried out.


16. OTHER INFORMATION

Safety Data Sheet according to Regulation (EC) No. 1907/2006 (REACH). 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. American Elements shall not be held liable for any damage resulting from handling or from contact with the above product. See reverse side of invoice or packing slip for additional terms and conditions of sale. COPYRIGHT 1997-2016 AMERICAN ELEMENTS. LICENSED GRANTED TO MAKE UNLIMITED PAPER COPIES FOR INTERNAL USE ONLY.

About

High Purity (99.999%) Chromium (Cr) MetalChromium Metal is available as disc, granules, ingot, pellets, pieces, powder , rod, wire, and sputtering target. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Ultra high purity and high purity forms also include metal powder, submicron powder and nanoscale, quantum dots, targets for thin film deposition, pellets for evaporation and single crystal or polycrystalline forms. Elements can also be introduced into alloys or other systems as fluorides, oxides or chlorides or as solutions. Chromium metal is generally immediately available in most volumes. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Synonyms

Elemental chromium, chrome, 7740-47-3

Chemical Identifiers

Linear Formula Cr
CAS 7440-47-3
Pubchem CID 23976
MDL Number MFCD00010944
EC No. 231-157-5
Beilstein Registry No. N/A
SMILES [Cr]
InchI Identifier InChI=1S/Cr
InchI Key VYZAMTAEIAYCRO-UHFFFAOYSA-N

Packaging Specifications

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Safety Data Sheet (SDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes, and 36,000 lb. tanker trucks.

Related Products & Element Information

See more Chromium products. Chromium (atomic symbol: Cr, atomic number: 24) is a Block D, Group 6, Period 4 element with an atomic weight of 51.9961. Chromium Bohr ModelThe number of electrons in each of Chromium's shells is 2, 8, 13, 1 and its electron configuration is [Ar] 3d5 4s1. Chromium was first discovered by Louis Nicolas Vauquelin in 1797. It was first isolated in 1798, also by Louis Nicolas Vauquelin. The chromium atom has a radius of 128 pm and a Van der Waals radius of 189 pm. In its elemental form, chromium has a lustrous steel-gray appearance. Elemental ChromiumChromium is the hardest metal element in the periodic table and the only element that exhibits antiferromagnetic ordering at room temperature, above which it tranforms into a paramagnetic solid. The most common source of chromium is chromite ore (FeCr2O4). Due to its various colorful compounds, Chromium was named after the Greek word 'chroma' meaning color.

Recent Research

Combined nano-biotechnology for in-situ remediation of mixed contamination of groundwater by hexavalent chromium and chlorinated solvents., Němeček, Jan, Pokorný Petr, Lhotský Ondřej, Knytl Vladislav, Najmanová Petra, Steinová Jana, Černík Miroslav, Filipová Alena, Filip Jan, and Cajthaml Tomáš , Sci Total Environ, 2016 Sep 1, Volume 563-564, p.822-34, (2016)

Adverse effects and bioconcentration of chromium in two freshwater rotifer species., Hernández-Ruiz, Esmeralda, Alvarado-Flores Jesús, Rubio-Franchini Isidoro, Ventura-Juárez Javier, and Rico-Martínez Roberto , Chemosphere, 2016 Sep, Volume 158, p.107-15, (2016)

Chromium speciation in tannery effluent after alkaline precipitation: Isolation and characterization., Wang, Dandan, He Shiya, Shan Chao, Ye Yuxuan, Ma Hongrui, Zhang Xiaolin, Zhang Weiming, and Pan Bingcai , J Hazard Mater, 2016 Oct 5, Volume 316, p.169-77, (2016)

Chromium immobilization by extra- and intraradical fungal structures of arbuscular mycorrhizal symbioses., Wu, Songlin, Zhang Xin, Sun Yuqing, Wu Zhaoxiang, Li Tao, Hu Yajun, Lv Jitao, Li Gang, Zhang Zhensong, Zhang Jing, et al. , J Hazard Mater, 2016 Oct 5, Volume 316, p.34-42, (2016)

Chromate Allergy in Northern Israel in Relation to Exposure to Cement and Detergents., Kridin, Khalaf, Bergman Reuven, Khamaisi Mogher, and Weltfriend Sara , Dermatitis, 2016 May-Jun, Volume 27, Issue 3, p.131-6, (2016)

Effect of NaX zeolite-modified graphite felts on hexavalent chromium removal in biocathode microbial fuel cells., Wu, Xiayuan, Tong Fei, Yong Xiaoyu, Zhou Jun, Zhang Lixiong, Jia Honghua, and Wei Ping , J Hazard Mater, 2016 May 5, Volume 308, p.303-11, (2016)

Enhancement of chromate reduction in soils by surface modified biochar., Mandal, Sanchita, Sarkar Binoy, Bolan Nanthi, Ok Yong Sik, and Naidu Ravi , J Environ Manage, 2016 May 24, (2016)

Bioreduction of Chromate in a Methane-Based Membrane Biofilm Reactor., Lai, Chun-Yu, Zhong Liang, Zhang Yin, Chen Jia-Xian, Wen Li-Lian, Shi Ling-Dong, Sun Yan-Ping, Ma Fang, Rittmann Bruce E., Zhou Chen, et al. , Environ Sci Technol, 2016 May 17, (2016)

Carbothermal synthesis of ordered mesoporous carbon-supported nano zero-valent iron with enhanced stability and activity for hexavalent chromium reduction., Dai, Ying, Hu Yuchen, Jiang Baojiang, Zou Jinlong, Tian Guohui, and Fu Honggang , J Hazard Mater, 2016 May 15, Volume 309, p.249-58, (2016)

[Reduction Kinetics of Cr (VI) in Chromium Contaminated Soil by Nanoscale Zerovalent Iron-copper Bimetallic]., Ma, Shao-yun, Zhu Fang, and Shang Zhi-feng , Huan Jing Ke Xue, 2016 May 15, Volume 37, Issue 5, p.1953-9, (2016)

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