Ammonium dichromate
Product identifier
- Product name: Ammonium dichromate
- CBnumber: CB9854341
- CAS: 7789-09-5
- EINECS Number: 232-143-1
- Synonyms: Ammonium Dichromate,ammonium bichromate
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: Ammonium dichromate
- Synonyms: Ammonium Dichromate,ammonium bichromate
- CAS: 7789-09-5
- EC number: 232-143-1
- MF: Cr2H8N2O7
- MW: 252.06
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
Nature of decomposition products not known. Not combustible.
Avoid shock and friction. Risk of dust explosion.
Ambient fire may liberate hazardous vapours.
Has a fire-promoting effect due to release of oxygen. In the event of decomposition: danger of explosion!
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
Suppress (knock down) gases/vapors/mists with a water spray jet. Prevent fire extinguishing water from contaminating surface water or the ground water system.
NFPA 704
| HEALTH | 2 | Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury (e.g. diethyl ether, ammonium phosphate, iodine) | |
| FIRE | 1 | Materials that require considerable preheating, under all ambient temperature conditions, before ignition and combustion can occur. Includes some finely divided suspended solids that do not require heating before ignition can occur. Flash point at or above 93.3 °C (200 °F). (e.g. mineral oil, ammonia) | |
| 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
Keep locked up or in an area accessible only to qualified or authorized persons. Tightly
closed and away from sources of ignition and heat. Observe national regulations. Do not grind or subject to friction or shock. Isolated storage is required.
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
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
- Appearanceorange crystalline
- Odourodorless
- Odour ThresholdNot applicable d) pH 3,0 - 4,0 at 50 g/l at 25 °C Melting point/freezing point Initial boiling point and boiling range Melting point/range: 170 °C - dec. No data available Flash point Not applicable Evaporation rate No data available Flammability (solid, gas) Upper/lower flammability or explosive limits No data available No data available Vapour pressure No data available Vapour density No data available Density 2,150 g/cm3 at 20 °C Relative density No data available Water solubility 360 g/l at 20 °C Partition coefficient: n-octanol/water Autoignition temperature Decomposition temperature Not applicable for inorganic substances No data available No data available Viscosity Viscosity, kinematic: No data available Viscosity, dynamic: No data available Explosive properties No data available Oxidizing properties The substance or mixture is classified as oxidizing with the category 2.
- Melting point/freezing pointMelting point/range: 170 °C - dec.
- Initial boiling point and boiling range170 °C (dec.)(lit.)
- Flash pointNot applicable
- Evaporation rateNo data available
- Flammability (solid, gas)No data available
- Upper/lower flammability or explosive limitsNo data available
- Vapour pressure No data available
- Vapour density No data available
- Relative density8.7 (vs air)
- Water solubility360 g/l at 20 °C
- Partition coefficient: n-octanol/waterNot applicable for inorganic substances
- Autoignition temperatureNo data available
- Decomposition temperatureNo data available
- Viscosity170 °C
- Explosive propertiesNo data available
- Oxidizing propertiesThe substance or mixture is classified as oxidizing with the
Other safety information
No data available
Reactivity
Risk of dust explosion.
Chemical stability
The product is chemically stable under standard ambient conditions (room temperature) .
Possibility of hazardous reactions
No data available
Conditions to avoid
no information available
Incompatible materials
Strong reducing agents, Alcohols, Strong acids, Do not store near acids.
Hazardous decomposition products
In the event of fire: see section 5
Information on toxicological effects
Acute toxicityLC50 Inhalation - Rat - 4 h - 0,2 mg/l LD50 Dermal - Rabbit - 1.860 mg/kg
Result: Severe eye irritation (Draize Test)
Remarks: Classified according to Regulation (EU) 1272/2008, Annex VI (Table 3.1/3.2)
Toxicity
No data available
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
Discharge into the environment must be avoided.
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.
IncompatibilitiesAn unstable oxidizer; freezing/melting point5(decomposes below MP) 180 C; decomposition becomes self-sustaining and violent at about 225 C. Contact with combustible, organic or other easily oxidized materials, strong acids; hydrazine and other reducing agents; alcohols, sodium nitrite may cause fire and explosions.
Waste DisposalAdd a large volume of a reductant solution (hypo, bisulfite or ferrous salt and acidify with sulfuric acid). Neutralize when reduction is complete and flush to sewer with large volume of water.
UN number
ADR/RID: 1439 IMDG: 1439 IATA: 1439
UN proper shipping name
| | ADR/RID: AMMONIUM DICHROMATE IMDG: AMMONIUM DICHROMATE | |
| IATA: Ammonium dichromate | ||
| 14.3 | Transport hazard class(es) ADR/RID: 5.1 IMDG: 5.1 | IATA: 5.1 |
| 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
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- CAS: Chemical Abstracts Service
- EC50: Effective Concentration 50%
- IATA: International Air Transportation Association
- IMDG: International Maritime Dangerous Goods
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- STEL: Short term exposure limit
- TWA: Time Weighted Average
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.