Name: Molybdenum Powder
CAS: 7439-98-7
EC Number: 231-107-2
Chemical Formular: Mo
Appearance: gray metallic
Molecular Weight: 96 g/mol
Melting Point: 2896 K (2623 °C, 4753 °F)
Boiling Point: 4912 K (4639 °C, 8382 °F)
Density: 10.28 g/cm3
Solubility in water: n/a
Exact Mass: 97.905404 g/mol
Monoisotopic Mass: 97.905404 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 | Molybdenum Powder |
|---|
1.2
Other means of identification
| Product number | – |
|---|---|
| Other names | Molybdenum powder;Molybdenum; |
1.3
Recommended use of the chemical and restrictions on use
| Identified uses | Metals/Elements (the simplest forms of matter) |
|---|---|
| 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 |
|---|---|---|---|
| Molybdenum Powder | – | 7439-98-7 | 231-107-2 |
SECTION 4: First-aid measures
4.1
Description of necessary first-aid measures
If inhaled
Fresh air, rest.
Following skin contact
Rinse skin with plenty of water or shower.
Following eye contact
Rinse with plenty of water for several minutes (remove contact lenses if easily possible).
Following ingestion
Rinse mouth. Give one or two glasses of water to drink.
4.2
Most important symptoms/effects, acute and delayed
Exposure Routes: inhalation, ingestion, skin and/or eye contact Target Organs: Eyes, respiratory system, liver, kidneys (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 if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on the 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. Poisons A and B
SECTION 5: Fire-fighting measures
5.1
Suitable extinguishing media
Excerpt from ERG Guide 170 [Metals (Powders, Dusts, Shavings, Borings, Turnings, or Cuttings, etc.)]: DO NOT USE WATER, FOAM OR CO2. Dousing metallic fires with water will generate hydrogen gas, an extremely dangerous explosion hazard, particularly if fire is in a confined environment (i.e., building, cargo hold, etc.). Use DRY sand, graphite powder, dry sodium chloride-based extinguishers, G-1® or Met-L-X® powder. Confining and smothering metal fires is preferable rather than applying water. Move containers from fire area if you can do it without risk. FIRE INVOLVING TANKS OR CAR/TRAILER LOADS: If impossible to extinguish, protect surroundings and allow fire to burn itself out. (ERG, 2016)
5.2
Specific hazards arising from the chemical
Excerpt from ERG Guide 170 [Metals (Powders, Dusts, Shavings, Borings, Turnings, or Cuttings, etc.)]: May react violently or explosively on contact with water. Some are transported in flammable liquids. May be ignited by friction, heat, sparks or flames. Some of these materials will burn with intense heat. Dusts or fumes may form explosive mixtures in air. Containers may explode when heated. May re-ignite after fire is extinguished. (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
Evacuate and restrict persons not wearing protective equipment from area of spill or leak until cleanup is complete. Remove all ignition sources. Use HEPA vacuum or wet method to reduce dust during clean-up. Do not dry sweep. Collect powdered material in the most convenient and safe manner and deposit in sealed containers. Ventilate area after clean-up is complete. It may be necessary to contain and dispose of this chemical as a hazardous waste. If material or contaminated runoff enters waterways, notify downstream users of potentially contaminated waters. Contact your Department of Environmental Protection or your regional office of the federal EPA for specific recommendations. If employees are required to clean up spills, they must be properly trained and equipped. OSHA 1910.120(q) may be applicable.
SECTION 7: Handling and storage
7.1
Precautions for safe handling
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
Separated from strong oxidants, halogens and strong acids.Prior to working with this chemical you should be trained on its proper handling and storage. Manganese must be stored to avoid contact with strong oxidizers (such as chlorine, bromine, and fluorine) since violent reactions occur. Store in tightly closed containers in a cool, well ventilated area away from bromine, trifluoride, fluorine, chlorine trifluoride and lead oxide.
SECTION 8: Exposure controls/personal protection
8.1
Control parameters
Occupational Exposure limit values
TLV: (inhalable fraction): 10 mg/m3, as TWA.TLV: (respirable fraction): 3 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 spectacles.
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 | Dark-gray or black powder with metallic luster or coherent mass of silver white color; body centered cubic structure |
| Odour | no data available |
| Melting point/freezing point | 2 623 °C. |
| Boiling point or initial boiling point and boiling range | 4 639 °C. Atm. press.:101 325 Pa. |
| Flammability | Combustible Solid in form of dust or powder. |
| Lower and upper explosion limit/flammability limit | no data available |
| Flash point | -23ºC |
| Auto-ignition temperature | no data available |
| Decomposition temperature | no data available |
| pH | no data available |
| Kinematic viscosity | no data available |
| Solubility | Insoluble (NIOSH, 2016) |
| Partition coefficient n-octanol/water | no data available |
| Vapour pressure | 0 mm Hg (approx) (NIOSH, 2016) |
| Density and/or relative density | 10.18. Temperature:20 °C. |
| Relative vapour density | no data available |
| Particle characteristics | no data available |
SECTION 10: Stability and reactivity
10.1
Reactivity
5000 mg/cu m Molybdenum (as Mo)
Reacts violently with oxidants, halogens and concentrated nitric acid. This generates fire hazard.
10.2
Chemical stability
Fairly stable @ ordinary temp
10.3
Possibility of hazardous reactions
FLAMMABLE IN FORM OF DUST OR POWDER.Dust explosion possible if in powder or granular form, mixed with air.MOLYBDENUM is a reducing agent. In dust or powder form, it may present a fire or explosion hazard under favoring conditions of particle size, dispersion and ignition. Bulk molybdenum (rod, coil, sheet, etc.) is less reactive than dust or powder. Insoluble in hydrochloric acid or hydrofluoric acid solutions and in ammonia and sodium hydroxide solutions. Insoluble in dilute sulfuric acid solutions but soluble in concentrated sulfuric acid. Soluble in concentrated nitric acid. Incompatible with strong oxidizing agents such as bromine trifluoride, bromine pentafluoride, chlorine trifluoride, potassium perchlorate, nitryl fluoride, fluorine, iodine pentafluoride, sodium peroxide, lead dioxide.
10.4
Conditions to avoid
no data available
10.5
Incompatible materials
Soluble compounds: alkali metals, sodium, potassium, molten magnesium. Insoluble compounds: Violent reactions with oxidizers, nitric acid, sulfuric acid. …
10.6
Hazardous decomposition products
no data available
SECTION 11: Toxicological information
Acute toxicity
- Oral: LD50 – rat (male/female) – > 5 000 mg/kg bw.
- Inhalation: no data available
- Dermal: LD50 – rat (male/female) – > 2 000 mg/kg bw.
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: Not classifiable as to human carcinogenicity. IARC: Not classifiable as to carcinogenicity to humans. NTP: Not evaluated
Reproductive toxicity
no data available
STOT-single exposure
See Notes.
STOT-repeated exposure
See Notes.
Aspiration hazard
no data available
SECTION 12: Ecological information
12.1
Toxicity
- Toxicity to fish: LC50 – Pimephales promelas – 609.1 mg/L – 96 h.
- Toxicity to daphnia and other aquatic invertebrates: LC50 – Ceriodaphnia dubia – 1 005.5 mg/L – 48 h.
- Toxicity to algae: EC50 – Phaeodactylum tricornutum – 356.9 mg/L – 72 h.
- Toxicity to microorganisms: EC50 – activated sludge of a predominantly domestic sewage – 820 mg/L – 3 h. Remarks:Respiration rate.
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: No | IMDG: No | IATA: No |
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 |
|---|---|---|---|
| Molybdenum Powder | – | 7439-98-7 | 231-107-2 |
| 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 | Sep 11, 2020 |
|---|---|
| Revision Date | Sep 11, 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
Health effects of exposure to the substance have not been investigated adequately.
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: | Mo |
| PubChem CID: | 23932 |
| IUPAC Name: | molybdenum |
| Inchl: | InChI=1S/Mo |
| InChI Key: | ZOKXTWBITQBERF-UHFFFAOYSA-N |
| Canonical SMILES: | [Mo] |
| Pictogram(s): |  |
| Signal: | Warning |
| GHS Hazard Statements: | H228 |
| Hazard Codes: | Xi:Irritant |
| Risk Codes: | R36/37/38 |
| Precautionary Statement Codes: | P210-P280-P240-P241-P370+P378 |
| Flash Point: | n/a |
Molybdenum particles
Molybdenum microparticles
Molybdenum micro powder
Molybdenum micron powder
Molybdenum submicron powder
Molybdenum sub-micron powder
n/a
Molybdenum is an element with atomic symbol Mo, atomic number 42, and atomic weight 95.94.
Molybdenum is a transition element and is present in several human enzymes, such as xanthine and sulfite oxidases, and in enzyme cofactors in oxidative reduction reactions.
Molybdenum is found in many foods and deficiencies are rare. Molybdenum deficiency has been described in animals and rare cases have been reported in patients on total parenteral nutrition, clinical signs being mental disturbances and coma accompanied by hypouricemia and hypermethioninemia.
Molybdenum is relatively nontoxic, although high levels may be a cause of high.
Fiber drums, steel drums, and bulk bags
