Chromium(VI) oxide
Product identifier
- Product name: Chromium(VI) oxide
- CBnumber: CB5304358
- CAS: 1333-82-0
- EINECS Number: 215-607-8
- Synonyms: CrO3,chromium trioxide
Relevant identified uses of the substance or mixture and uses advised against
- Relevant identified uses: For R&D use only. Not for medicinal, household or other use.
- Uses advised against: none
Company Identification
- Company: Chemicalbook
- Address: Building 1, Huihuang International, Shangdi 10th Street, Haidian District, Beijing
- Telephone: 400-158-6606
GHS Label elements, including precautionary statements
-
Symbol(GHS)
- Signal wordDanger
Substance
- Product name: Chromium(VI) oxide
- Synonyms: CrO3,chromium trioxide
- CAS: 1333-82-0
- EC number: 215-607-8
- MF: CrO3
- MW: 99.99
Description of first aid measures
General adviceMost important symptoms and effects, both acute and delayed
Indication of any immediate medical attention and special treatment needed
Extinguishing media
Suitable extinguishing mediaSpecial hazards arising from the substance or mixture
Chromium oxides Not combustible.
Has a fire-promoting effect due to release of oxygen. Ambient fire may liberate hazardous vapours.
Advice for firefighters
Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by keeping a safe distance or by wearing suitable protective clothing.
Further information
Prevent fire extinguishing water from contaminating surface water or the ground water system.
NFPA 704
| HEALTH | 3 | Short exposure could cause serious temporary or moderate residual injury (e.g. liquid hydrogen, sulfuric acid, calcium hypochlorite, hexafluorosilicic acid) | |
| FIRE | 0 | Materials that will not burn under typical fire conditions, including intrinsically noncombustible materials such as concrete, stone, and sand. Materials that will not burn in air when exposed to a temperature of 820 °C (1,500 °F) for a period of 5 minutes.(e.g. Carbon tetrachloride) | |
| REACT | 1 | Normally stable, but can become unstable at elevated temperatures and pressures (e.g. propene) | |
| SPEC. HAZ. | OX |
Personal precautions, protective equipment and emergency procedures
For personal protection see section 8.
Environmental precautions
Do not let product enter drains.
Methods and materials for containment and cleaning up
Cover drains. Collect, bind, and pump off spills. Observe possible material restrictions (see sections 7 and 10). Take up carefully. Dispose of properly. Clean up affected area. Avoid generation of dusts.
Reference to other sections
For disposal see section 13.
Precautions for safe handling
Advice on safe handling
Work under hood. Do not inhale substance/mixture.
Advice on protection against fire and explosion
Keep away from open flames, hot surfaces and sources of ignition.
Hygiene measures
Immediately change contaminated clothing. Apply preventive skin protection. Wash hands and face after working with substance.
For precautions see section 2.2.
Conditions for safe storage, including any incompatibilities
Storage conditions
Tightly closed. Keep locked up or in an area accessible only to qualified or authorized persons. Separately or together with other oxidising substances only and away from sources of ignition and heat.Because of their oxidation potential these products can raise the burning rate of combustible substances substantially or ignite combustible substances on contact with them.
hygroscopic Heat sensitive.
Specific end use(s)
Apart from the uses mentioned in section 1.2 no other specific uses are stipulated
control parameter
Hazard composition and occupational exposure limitsExposure controls
Personal protective equipmentUse equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Tightly fitting safety goggles
This recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use. When dissolving in or mixing with other substances and under conditions deviating from those stated in EN374 please contact the supplier of CE-approved gloves (e.g. KCL GmbH, D-36124 Eichenzell, Internet: www.kcl.de).
Full contact
Material: Nitrile rubber
Minimum layer thickness: 0,11 mm Break through time: 480 min
Material tested:KCL 741 Dermatril? L
This recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use. When dissolving in or mixing with other substances and under conditions deviating from those stated in EN374 please contact the supplier of CE-approved gloves (e.g. KCL GmbH, D-36124 Eichenzell, Internet: www.kcl.de).
Splash contact Material: Nitrile rubber
Minimum layer thickness: 0,11 mm Break through time: 480 min
Material tested:KCL 741 Dermatril? L
Acid-resistant protective clothing
required when dusts are generated.
Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system.
Recommended Filter type: Filter type P3
The entrepeneur has to ensure that maintenance, cleaning and testing of respiratory protective devices are carried out according to the instructions of the producer.
These measures have to be properly documented.
Do not let product enter drains.
Information on basic physicochemical properties
- Appearancedark red powder, flakes
- Odourodorless
- Odour ThresholdNot applicable
- pH< 1 at 100 g/l at 20 °C
- Melting point/freezing pointMelting point/range: 196 °C - dec.
- Initial boiling point and boiling range330 °C
- Flash pointNot applicable
- Evaporation rateNo data available
- Flammability (solid, gas)The product is not flammable. - Test N.1: Test method for readily combustible solids
- Upper/lower flammability or explosive limitsNo data available
- Vapour pressure Not applicable
- Vapour density Not applicable
- Relative density2,7 g/cm3 at 20 °C ca.2,7 - OECD Test Guideline 109
- Water solubilityca.1.667 g/l - Regulation (EC) No. 440/2008, Annex, A.6- soluble
- Partition coefficient: n-octanol/waterNot applicable for inorganic substances
- Autoignition temperature not auto-flammable
- Decomposition temperatureabove melting point
- ViscosityViscosity, kinematic: No data available Viscosity, dynamic: No data available
- Explosive propertiesNo data available
- Oxidizing propertiesThe substance or mixture is classified as oxidizing with the category 1.May cause fire or explosion; strong oxidizer.
Other safety information
Relative vapor density
Not applicable
Reactivity
No data available
Chemical stability
The product is chemically stable under standard ambient conditions (room temperature) .
Possibility of hazardous reactions
Risk of explosion with:
organic combustible substances Alkali metals
Ammonia nonmetals
halogen-halogen compounds hydrazine and derivatives nitrates
Reducing agents Nitric acid
Conditions to avoid
no information available
Incompatible materials
No data available
Hazardous decomposition products
In the event of fire: see section 5
Information on toxicological effects
Acute toxicityAcute toxicity estimate Inhalation - 0,051 mg/l (Expert judgment)
Acute toxicity estimate Dermal - 300,1 mg/kg (Expert judgment)
Result: Corrosive - 0,5 h Remarks: (ECHA)
Result: Causes burns.
Remarks: (ECHA)
Causes serious eye damage.
Result: positive Remarks: (IUCLID)
May cause an allergic skin reaction.
No data available
PEL (OSHA) 0.1 mg (CrO3)/m3 (ceiling)
TLV-TWA (ACGIH) 0.05 mg (Cr)/m3
Toxicity
(ECHA)
EC50 - Daphnia magna (Water flea) - 0,035 mg/l - 48 h Remarks: (ECHA)
Persistence and degradability
The methods for determining the biological degradability are not applicable to inorganic substances.
Bioaccumulative potential
No data available
Mobility in soil
No data available
Results of PBT and vPvB assessment
This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.
Other adverse effects
No data available
Waste treatment methods
Product
See www.retrologistik.com for processes regarding the return of chemicals and containers, or contact us there if you have further questions.
IncompatibilitiesChromium trioxide is a strong oxidizer. The solution in water is a strong acid. Reacts violently with bases and is corrosive. Contact with reducing agents; fuels, organic chemicals, flammable and combustible materials, causing fire and explosion hazard. This chemical decomposes above 250C to chromic oxide and oxygen with increased fire hazard. Attacks metals in the presence of moisture.
Waste DisposalReduce to Cr(III). If material cannot be recovered and recycled, dispose of sludge in a chemical waste landfill.
UN number
ADR/RID: 1463 IMDG: 1463 IATA: 1463
UN proper shipping name
| | ADR/RID: CHROMIUM TRIOXIDE, ANHYDROUS IMDG: CHROMIUM TRIOXIDE, ANHYDROUS | |
| IATA: Chromium trioxide, anhydrous | ||
| 14.3 | Transport hazard class(es) ADR/RID: 5.1 (6.1, 8) IMDG: 5.1 (6.1, 8) | IATA: 5.1 (6.1)(8) |
| 14.4 | Packaging group ADR/RID: II IMDG: II | IATA: II |
| 14.5 | Environmental hazards ADR/RID: yes IMDG Marine pollutant: yes | IATA: no |
| 14.6 | Special precautions for user No data available | |
Safety, health and environmental regulations/legislation specific for the substance or mixture
Regulations on the Safety Management of Hazardous ChemicalsAbbreviations 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
【1】CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
【2】ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
【3】ECHA - European Chemicals Agency, website: https://echa.europa.eu/
【4】eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en
【5】ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg
【6】Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp
【7】HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
【8】IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/
【9】IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home
【10】Sigma-Aldrich, website: https://www.sigmaaldrich.com/
Other Information
The information in this MSDS is only applicable to the specified product, unless otherwise specified, it is not applicable to the mixture of this product and other substances. This MSDS only provides information on the safety of the product for those who have received the appropriate professional training for the user of the product. Users of this MSDS must make independent judgments on the applicability of this SDS. The authors of this MSDS will not be held responsible for any harm caused by the use of this MSDS.