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MATERIAL SAFETY DATA SHEET

TUNGSTEN, W

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GENERAL

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COMPANY'S NAME: Huizhou TianYi Rare Material Co.,Ltd

 

COMPANY'S TEL #:    0086-752-2021182

 

COMPANY'S Address:   12K of Shiji, Shijixingtian Bldg, YanDa Road, Huizhou China    

 

DATE MSDS PREPARED: 03/05/06

 

DATE MSDS REVISED:          02/12/13

 

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1. PRODUCT IDENTIFICATION

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PRODUCT NAME: TUNGSTEN

SYNONYM:       WOLFRAM

CHEMICAL NATURE:  REFRACTORY FAMILY

FORMULA:       W

CAS #: 7440-33-7

 

MOLECULAR WEIGHT:      183.85

 

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2. PHYSICAL AND CHEMICAL CHARACTERISTICS

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BOILING POINT:     5927 0C

MELTING POINT:    3430 0C

VAPOR DENSITY: N/A

 

VAPOR PRESSURE:   N/A

FLAMMABILITY:     HIGHLY FLAMMABLE

SPECIFIC GRAVITY (WATER=1):  19.3g/cm3 at 20 0C

 

% VOLATILES: N/A

SOLUBILITY IN H2O:    INSOLUBLE

APPEARANCE AND ODOR:    GRAY METAL TARGET/INSERT, POWDER, GRANULES GRAY

TO BLACK POWDER, ODORLESS

 

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3. HAZARD IDENTIFICATION

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HAZARDOUS COMPONENTS %  

TUNGSTEN      0-100%

OSHA/PEL:       5 mg/m3

ACGIH/TLV       5 mg/m3

STEL    10 mg/m3

SEC. 302    NO

SEC 304     NO

SEC 313     NO

HAZARD DESCRIPTION:   F HIGHLY FLAMMABLE

RISK PHRASES:    R 11 HIGHLY FLAMMABLE

HMIS RATING:

HEALTH:    1

FLAMMABILITY:     2

REACTIVITY:    1

PROTECTIVE EQUIPMENT: E:       GLASSES, GLOVES, DUST RESPIRATOR.

 

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4. FIRE FIGHTING MEASURES

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FLASH POINT: N/A

AUTOIGNITION TEMPERATURE:  N/A

FLAMMABLE LIMITS:  

 

UPPER:      N/A      

LOWER:     N/A      

FLAMMABILITY:     MODERATE FIRE HAZARD IN THE FORM OF DUST WHEN 

       EXPOSED TO FLAME; METAL IS NOT FLAMMABLE  

EXTINGUISHING MEDIA:   TUNGSTEN ROD, WIRE AND FABRICATED PRODUCTS ARE    

       NOT A FIRE HAZARD. FINE DUST GENERATED DURING    

       GRINDING OPERATIONS MAY IGNITE IF ALLOWED TO  

       ACCUMULATE AND SUBJECTED TO AN IGNITION SOURCE.    

       COVER BURNING MATERIAL WITH AN INERT POWDER,     

       SUCH AS DRY SAND OR LIMESTONE, TO EXCLUDE     

SPECIAL FIRE FIGHTING  OXYGEN   

             

PROCEDURES:     FOR A POWDER FIRE CONFINED TO A SMALL AREA, USE A   

       RESPIRATOR APPROVED FOR TOXIC DUSTS AND FUMES.     

       FOR A LARGE FIRE INVOLVING THIS MATERIAL,     

       FIREFIGHTERS SHOULD USE SELF-CONTAINED    

UNUSUAL FIRE AND  BREATHING APPARATUS.     

             

EXPLOSION HAZARDS:    DUST MAY PRESENT A FIRE OR EXPLOSION HAZARD

       UNDER FAVORING CONDITIONS OF PARTICLE SIZE,   

       DISPERSION AND STRONG IGNITION SOURCE. HOWEVER,     

       THIS IS NOT EXPECTED TO BE A PROBLEM UNDER     

       NORMAL HANDLING CONDITIONS.   

 

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5. HEALTH HAZARD INFORMATION

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EFFECTS OF EXPOSURE:      TO THE BEST OF OUR KNOWLEDGE THE CHEMICAL,   

       PHYSICAL AND TOXICOLOGICAL PROPERTIES OF

       TUNGSTEN METAL HAVE NOT BEEN THOROUGHLY     

       INVESTIGATED AND RECORDED.     

       INDUSTRIALLY, THIS ELEMENT DOES NOT CONSTITUTE   

       AN IMPORTANT HEALTH HAZARD. EXPOSURE IS RELATED    

       CHIEFLY TO THE DUST ARISING FROM THE CRUSHING     

       AND MILLING OF THE TWO CHIEF ORES OF TUNGSTEN,    

       NAMELY SCHEELITE AND WOLFRAMITE. LARGE    

       OVERDOSES CAUSE CENTRAL NERVOUS SYSTEM    

       DISTURBANCES, DIARRHEA, RESPIRATORY FAILURE AND    

       DEATH IN EXPERIMENTAL ANIMALS (SAX, DANGEROUS   

       PROPERTIES OF INDUSTRIAL MATERIALS, EIGHTH      

       EDITION).  

ACUTE EFFECTS:       

INHALATION:   MAY CAUSE IRRITATION TO THE RESPIRATORY TRACT.   

INGESTION:     NO ACUTE HEALTH EFFECTS RECORDED.

SKIN:    MAY CAUSE ABRASIVE IRRITATION.      

EYE:     MAY CAUSE ABRASIVE IRRITATION.      

CHRONIC AFFECTS:   LARGE OVERDOSES MAY CAUSE NERVOUS SYSTEM

       DISTURBANCES, AND DIARRHEA. NO OTHER CHRONIC   

       HEALTH EFFECTS RECORDED. 

ROUTES OF EXPOSURE: INHALATION, INGESTION, SKIN, EYE.      

TARGET ORGAN:  MAY AFFECT THE RESPIRATORY AND CENTRAL NERVOUS   

MEDICAL CONDITIONS     SYSTEMS.

             

GENERALLY AGGRAVATED         

BY EXPOSURE:     PREEXISTING RESPIRATORY DISORDERS 

CARCINOGENITY:       

NTP:     YES     

IARC:   YES     

OSHA:  YES     

 

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6. STABILITY

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STABILITY:       STABLE

 

CONDITION TO AVOID:      NONE

 

INCOMPATIBILITY

(MATERIAL TO AVOID):      AVOID CONTACT OF DUST WITH STRONG OXIDIZERS.

BROMINE PENTAFLUORIDE, BROMINE, CHLORINE

TRIFLUORIDE, POTASSIUM PERCHLORATE, POTASSIUM

DICHROMATE, NITRYL FLUORIDE, FLUORINE, OXYGEN

DIFLUORIDE, IODINE PENTAFLUORIDE, HYDROGEN

SULFIDE, SODIUM PEROXIDE, LEAD (IV) OXIDE, AIR.

 

HAZARDOUS

 

DECOMPOSITION PRODUCTS:     NOT RECORDED

 

HAZARDOUS

 

POLYMERIZATION:      WILL NOT OCCUR.

 

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7. EMERGENCY AND FIRST AID PROCEDURES:

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INHALATION:   REMOVE VICTIM TO FRESH AIR, KEEP WARM AND QUIET,

GIVE OXYGEN IF BREATHING IS DIFFICULT AND SEEK

MEDICAL ATTENTION IF SYMPTOMS PERSIST.

INGESTION:     GIVE 1-2 GLASSES OF MILK OR WATER AND INDUCE

VOMITING, SEEK MEDICAL ATTENTION IF SYMPTOMS

PERSIST. NEVER INDUCE VOMITING OR GIVE ANYTHING

 

BY MOUTH TO AN UNCONSCIOUS PERSON.

EYE:     FLUSH EYES WITH LUKEWARM WATER, LIFTING UPPER

AND LOWER EYELIDS, FOR AT LEAST 15 MINUTES. SEEK

 

MEDICAL ATTENTION IF SYMPTOMS PERSIST.

SKIN:    REMOVE CONTAMINATED CLOTHING, BRUSH MATERIAL

OFF SKIN, WASH AFFECTED AREA WITH MILD SOAP AND

WATER, SEEK MEDICAL ATTENTION IF SYMPTOMS

PERSIST.

 

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8. HANDLING AND STORAGE

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HANDLING AND STORAGE     STORE IN A COOL, DRY AREA. STORE IN A TIGHTLY

SEALED CONTAINER. WASH THOROUGHLY AFTER

HANDLING.

OTHER PRECAUTIONS:    MAINTAIN GOOD HOUSEKEEPING PROCEDURES TO

PREVENT ACCUMULATION OF DUST. USE CLEAN-UP

METHODS WHICH MINIMIZE DUST GENERATION SUCH AS

VACUUMING OR WET CLEAN-UP. IF AIRBORNE DUST IS

GENERATED, USE AN APPROPRIATE NIOSH APPROVED

RESPIRATOR. DO NOT SHAKE CLOTHING OR OTHER ITEMS

TO REMOVE DUST. USE A VACUUM. AVOID DUST

INHALATION AND DIRECT SKIN CONTACT. DO NOT

INGEST. TUNGSTEN METAL MAY IGNITE ON CONTACT

WITH AIR. HANDLE AND STORE IN A CONTROLLED

 

ENVIRONMENT AND INERT GAS SUCH AS ARGON.

 

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9. SPILL OR LEAK PROCEDURES

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STEPS TO BE TAKEN IN

 

CASE MATERIAL IS

RELEASED OR SPILLED: VENTILATE AREA OF SPILL. TAKE CARE NOT TO RAISE

DUST. USE NON-SPARKING TOOLS. CLEAN-UP USING

METHODS WHICH AVOID DUST GENERATION SUCH AS

VACUUMING (WITH APPROPRIATE FILTER TO PREVENT

AIRBORNE DUST LEVELS WHICH EXCEED THE TLV), WET

DUST MOP OR WET CLEAN-UP. IF AIRBORNE DUST IS

GENERATED, USE AN APPROPRIATE NIOSH APPROVED

RESPIRATOR.

WASTE DISPOSAL METHOD: IN ACCORDANCE WITH LOCAL, STATE AND FEDERAL

REGULATIONS.

 

SPECIAL PROTECTION INFORMATION:

 

RESPIRATORY PROTECTION:      USE AN APPROPRIATE NIOSH APPROVED DUST, MIST

RESPIRATOR WHEN AIRBORNE DUST CONCENTRATIONS

EXCEED THE TLV. APPROPRIATE REQUIREMENTS SET

 

FORTH IN 29CF19110.134 SHOULD BE MET.

VENTILATION: USE LOCAL EXHAUST VENTILATION WHICH IS ADEQUATE

TO LIMIT PERSONAL EXPOSURE TO LEVELS WHICH DO

NOT EXCEED THE TLV. IF SUCH EQUIPMENT IS NOT

AVAILABLE, USE RESPIRATORS AS SPECIFIED ABOVE.

TUNGSTEN POWDER SHOULD BE HANDLED IN A

CONTROLLED ATMOSPHERE IN AN INERT GAS SUCH AS

 

ARGON.

 

PROTECTIVE GLOVES:     RUBBER GLOVES

 

EYE PROTECTION:      SAFETY GLASSES

 

OTHER PROTECTIVE

EQUIPMENT OR CLOTHING:   PROECTIVE GEAR SUITABLE TO PREVENT

CONTAMINATION.

 

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10. TOXICITY DATA

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TOXICITY:

ACUTE ORAL TOXICITY (LD50):    5GM/KG FOR RAT

SENSITIZATION:    N/A

CARCINOGENICITY:    NO CLASSIFICATION DATA ON CARCINOGENIC PROPERTIES

OF THIS MATERIAL IS AVAILABLE FROM THE EPA, IARC,

NTP, OSHA, OR ACGIH.

ADDITIONAL INFORMATION:  TO THE BEST OF OUR KNOWLEDGE THE ACUTE AND

CHRONIC TOXICITY OF THIS SUBSTANCE IS NOT FULLY

KNOWN.

 

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11. TRANSPORTATION DATA

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FOR POWDER ONLY

PROPER SHIPPING NAME:     METAL POWDER, FLAMMABLE, N.O.S

UN NUMBER:  3089

HAZARD CLASS:   4.1

PACKING GROUP:       II

ADR//RID CLASS:  4.1 (F3) FLAMMABLE SOLIDS, SELF-REACTIVE SUBSTANCES

AND SOLID DESENSITISED EXPLOSIVES

IMDG CLASS:  4.1

AIR TRAN. ICAO/IATA CLASS:       4.1

 

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12. OTHER INFORMATION

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THIS SAFETY DATA SHEET SHOULD BE USED IN CONJUNCTION WITH TECHNICAL SHEETS. IT DOES NOT REPLACE THEM. THE INFORMATION GIVEN IS BASED ON OUR KNOWLEDGE OF THIS PRODUCT, AT THE TIME OF PUBLICATION. IT IS GIVEN IN GOOD FAITH. THE ATTENTION OF THE USER IS DRAWN TO THE POSSIBLE RISKS INCURRED BY USING THE PRODUCT FOR ANY OTHER PURPOSE OTHER THAN THAT FOR WHICH IT WAS INTENDED. THIS DOES NOT IN ANY WAY EXCUSE THE USER FROM KNOWING AND APPLYING ALL THE REGULATIONS GOVERNING HIS ACTIVITY. IT IS THE SOLE RESPONSIBILITY OF THE USER TO TAKE ALL PRECAUTIONS REQUIRED IN HANDLING THE PRODUCT. THE AIM OF THE MANDATORY REGULATIONS MENTIONED IS TO HELP THE USER TO FULFILL HIS OBLIGATIONS REGARDING THE USE OF HAZARDOUS PRODUCTS.