molybdenum trioxide
CAS No.: 1313-27-5 Formula: MoO3 Molecular Weight: 143.95800
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molybdenum trioxide

CAS No.: 1313-27-5 Formula: MoO3 Molecular Weight: 143.95800
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Description

Molybdenum trioxide is chemical compound with the formula MoO3. This compound is produced on the largest scale of any molybdenum compound. It occurs as the rare mineral molybdite. Its chief application is as an oxidation catalyst and as a raw material for the production of molybdenum metal.
The oxidation state of molybdenum in this compound is +6.

Basic Info

Chemical Name
molybdenum trioxide
CAS No.
1313-27-5
Molecular Formula
MoO3
Molecular Weight
143.95800
PSA
51.21000
LogP
-0.35640

Properties

Appearance & Physical State
pale yellowish-green powder
Density
4.692
Boiling Point
1155ºC
Melting Point
795ºC
Flash Point
1155ºC subl.

Safety Info

Safety Statements
S22-S25
HS Code
2825700000
Risk Statements
R36/37; R48/20/22
Hazard Codes
Xn
Symbol
GHS07, GHS08
Signal Word
Warning
Caution Statement
P261; P281; P305 + P351 + P338
Hazard Declaration
H319; H335; H351
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SDS 1.0

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SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name
molybdenum trioxide

1.2 Other means of identification

Product number
-
Other names
trioxomolybdenum

1.3 Recommended use of the chemical and restrictions on use

Identified uses
For industry use only. Intermediates,Lubricants and lubricant additives,Process regulators,Processing aids, not otherwise listed,Processing aids, specific to petroleum production
Uses advised against
no data available

1.4 Supplier's details

Company
XiXisys.com
Address
XiXisys.com
Telephone
XiXisys.com
Fax
XiXisys.com

1.5 Emergency phone number

Emergency phone number
-
Service hours
Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

2.Hazard identification

2.1 Classification of the substance or mixture

Eye irritation, Category 2

Specific target organ toxicity – single exposure, Category 3

Carcinogenicity, Category 2

2.2 GHS label elements, including precautionary statements

Pictogram(s)
Signal word

Warning

Hazard statement(s)

H319 Causes serious eye irritation

H335 May cause respiratory irritation

H351 Suspected of causing cancer

Precautionary statement(s)
Prevention

P264 Wash ... thoroughly after handling.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.

P271 Use only outdoors or in a well-ventilated area.

P201 Obtain special instructions before use.

P202 Do not handle until all safety precautions have been read and understood.

Response

P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P337+P313 If eye irritation persists: Get medical advice/attention.

P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.

P312 Call a POISON CENTER/doctor/…if you feel unwell.

P308+P313 IF exposed or concerned: Get medical advice/ attention.

Storage

P403+P233 Store in a well-ventilated place. Keep container tightly closed.

P405 Store locked up.

Disposal

P501 Dispose of contents/container to ...

2.3 Other hazards which do not result in classification

none

3.Composition/information on ingredients

3.1 Substances

Chemical name Common names and synonyms CAS number EC number Concentration
molybdenum trioxide
molybdenum trioxide
1313-27-5
none
100%

4.First-aid measures

4.1 Description of necessary first-aid measures

General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.

In case of skin contact

Wash off with soap and plenty of water. Consult a physician.

In case of eye contact

Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.

If swallowed

Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

4.2 Most important symptoms/effects, acute and delayed

Compound is relatively nontoxic. Dust irritates eyes. (USCG, 1999)

4.3 Indication of immediate medical attention and special treatment needed, if necessary

EXPTL THERAPY: SUPPLEMENTARY DIETARY CU2+, THIOSULFATE, METHIONINE & CYSTEINE EFFECTIVE IN ALLEVIATING MOLYBDENUM TOXICITY IN ANIMALS. /MOLYBDENUM/

5.Fire-fighting measures

5.1 Extinguishing media

Suitable extinguishing media

Fires associated with this material can be controlled with a dry chemical, carbon dioxide, or Halon extinguisher.

5.2 Specific hazards arising from the chemical

Flash point data for this chemical are not available, but it is probably non-flammable.

5.3 Special protective actions for fire-fighters

Wear self-contained breathing apparatus for firefighting if necessary.

6.Accidental release measures

6.1 Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8.

6.2 Environmental precautions

Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided.

6.3 Methods and materials for containment and cleaning up

Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

7.Handling and storage

7.1 Precautions for safe handling

Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2.

7.2 Conditions for safe storage, including any incompatibilities

Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

8.Exposure controls/personal protection

8.1 Control parameters

Occupational Exposure limit values

no data available

Biological limit values

no data available

8.2 Appropriate engineering controls

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

8.3 Individual protection measures, such as personal protective equipment (PPE)

Eye/face protection

Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it.

Respiratory protection

Wear dust mask when handling large quantities.

Thermal hazards

no data available

9.Physical and chemical properties

Physical state
pale yellowish-green powder
Colour
WHITE OR SLIGHTLY YELLOW TO SLIGHTLY BLUISH POWDER OR GRANULES
Odour
None
Melting point/ freezing point
795ºC
Boiling point or initial boiling point and boiling range
1155ºC
Flammability
no data available
Lower and upper explosion limit / flammability limit
no data available
Flash point
1155ºC subl.
Auto-ignition temperature
no data available
Decomposition temperature
no data available
pH
no data available
Kinematic viscosity
no data available
Solubility
less than 1 mg/mL at 23.89°C
Partition coefficient n-octanol/water (log value)
no data available
Vapour pressure
no data available
Density and/or relative density
4.692
Relative vapour density
no data available
Particle characteristics
no data available

10.Stability and reactivity

10.1 Reactivity

no data available

10.2 Chemical stability

Stable under recommended storage conditions.

10.3 Possibility of hazardous reactions

MOLYBDENUM TRIOXIDE reacts violently with chlorine trifluoride, lithium, potassium and sodium. Readily combines with acids and bases to form a series of polymeric compounds. Incompatible with interhalogens and metals. A violent detonation occurs when heated with molten magnesium.

10.4 Conditions to avoid

no data available

10.5 Incompatible materials

/Incompatible with/ alkali metals; sodium, potassium, molten magnesium. /Molybdenum, sol compounds, (as Mo)/

10.6 Hazardous decomposition products

no data available

11.Toxicological information

Acute toxicity

  • Oral: LD50 Rat oral 125 mg/kg
  • 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

    A3; Confirmed animal carcinogen with unknown relevance to humans. /Molybdenum, soluble compounds, as Mo/

    Reproductive toxicity

    no data available

    STOT-single exposure

    no data available

    STOT-repeated exposure

    no data available

    Aspiration hazard

    no data available

    12.Ecological information

    12.1 Toxicity

  • Toxicity to fish: LC50 Pimephales promelas (fathead minnow) 370 mg Mo/l/96 hr /Conditions of bioassay not specified
  • 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

    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.

    14.Transport information

    14.1 UN Number

    ADR/RID: Not dangerous goods.
    IMDG: Not dangerous goods.
    IATA: Not dangerous goods.

    14.2 UN Proper Shipping Name

    ADR/RID: unknown
    IMDG: unknown
    IATA: unknown

    14.3 Transport hazard class(es)

    ADR/RID: Not dangerous goods.
    IMDG: Not dangerous goods.
    IATA: Not dangerous goods.

    14.4 Packing group, if applicable

    ADR/RID: Not dangerous goods.
    IMDG: Not dangerous goods.
    IATA: Not dangerous goods.

    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 Annex II of MARPOL 73/78 and the IBC Code

    no data available

    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 trioxide
    molybdenum trioxide
    1313-27-5
    none
    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.

    16.Other information

    Information on revision

    Creation Date
    Aug 12, 2017
    Revision Date
    Aug 12, 2017

    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/

  • 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.
    MSDS Expand
    IR : nujol mullExpand

    IR Spectrum IR : nujol mull

    Collapse
    ESR : IN SNO2/MOO3 SYSTEMExpand
    Exposure Route Type of Test Species Observed Dose/Duration Toxic Effects
    Inhalation
    TCLo - Lowest published toxic concentration
    Rodent - rat
    10 mg/m3/2H/9W-I
    1.Liver-fatty liver degeneration
    Inhalation
    TCLo - Lowest published toxic concentration
    Rodent - rat
    100 mg/m3/6H/14D-I
    1.Nutritional and Gross Metabolic-weight loss or decreased weight gain
    Inhalation
    TCLo - Lowest published toxic concentration
    Rodent - mouse
    300 mg/m3/6H/14D-I
    1.Nutritional and Gross Metabolic-conditioned vitamin deficiency
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