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"PORTA" 12

                                             



CHEMICAL PRODUCT/COMPANY IDENTIFICATION


  Material Identification
    
     Formula                 : CCl2F2

  Tradenames and Synonyms

     CC0112

  Company Identification

     MANUFACTURER/DISTRIBUTOR
                    Leempeng Enterprise (Pte) Ltd
                    No. 7 Kallang Way 5
                    Kolam Ayer Industrial Park
		    Singapore (349026)	
     PHONE NUMBERS
       Product Information  : (65) 97483334
                              
       Transport Emergency  : (65) 97483334
                              
       Medical Emergency    : (65) 97483334
                              


COMPOSITION/INFORMATION ON INGREDIENTS


  Components

  Material       		      CAS Number    75-71-8
 *METHANE, DICHLORODIFLUORO- ("PORTA" 12)               100%

  * Disclosure as a toxic chemical is required under Section 313 of
  Title III of the Superfund Amendments and Reauthorization Act of 1986
  and 40 CFR part 372.


HAZARDS IDENTIFICATION


  Potential Health Effects

      Inhalation of high concentrations of vapor is harmful and
     may cause heart irregularities, unconsciousness, or death.
     Intentional misuse or deliberate inhalation may cause death
     without warning.  Vapor reduces oxygen available for
     breathing and is heavier than air.  Liquid contact can cause
     frostbite.  May cause eye irritation.


     HUMAN HEALTH EFFECTS:

     Human health effects of overexposure by eye contact with the
     vapor may include eye irritation with discomfort, tearing,
     or blurring of vision.  Skin contact with the liquid may
     cause frostbite.  Inhalation of the vapors may cause
     temporary nervous system depression with anesthetic effects
     such as dizziness, headache, confusion, incoordination, and
     loss of consciousness; temporary alteration of the heart's
     electrical activity with irregular pulse, palpitations, or
     inadequate circulation, or the effects of exclusion of
     oxygen with grossly excessive exposures.

     Individuals with preexisting diseases of the central nervous
     or cardiovascular system may have increased susceptibility
     to the toxicity of excessive exposures.

  Carcinogenicity Information

  None of the components present in this material at concentrations
  equal to or greater than 0.1% are listed by IARC, NTP, OSHA or ACGIH
  as a carcinogen.


FIRST AID MEASURES


  First Aid

     INHALATION
        If high concentrations are inhaled, immediately remove to
        fresh air.  Keep person calm.  If not breathing, give
        artificial respiration.  If breathing is difficult, give
        oxygen.  Call a physician.

     SKIN CONTACT
        In case of contact, flush skin with water.  Treat for
        frostbite if necessary by gently warming affected area.

     EYE CONTACT
        In case of contact, immediately flush eyes with plenty of
        water for at least 15 minutes.  Call a physician.

     INGESTION
        Ingestion is not considered a potential route of
        exposure.

  Notes to Physicians

     Because of a possible disturbance of cardiac rhythm,
     catecholamine drugs, such as epinephrine, should only be
     used with special caution in situations of emergency life
     support.


FIRE FIGHTING MEASURES


  Flammable Properties

     Flash Point             : Will not burn
     Flammable limits in Air, % by Volume
     LEL                     : Not applicable
     UEL                     : Not applicable
     Autoignition            : >750 C (>1382 F)

     Fire and Explosion Hazards:

     Cylinders may rupture under fire conditions.  Decomposition
     may occur.

  Extinguishing Media

     As appropriate for combustibles in area.

  Fire Fighting Instructions

     Use water spray or fog to cool containers.  Self-contained
     breathing apparatus (SCBA) is required if cylinders rupture
     and contents are released under fire conditions.  Water
     runoff should be contained and neutralized prior to release.


ACCIDENTAL RELEASE MEASURES


  Safeguards (Personnel)

     NOTE: Review FIRE FIGHTING MEASURES and HANDLING (PERSONNEL)
     sections before proceeding with clean-up.  Use appropriate
     PERSONAL PROTECTIVE EQUIPMENT during clean-up.

  Accidental Release Measures

     Ventilate area, especially low or enclosed places where
     heavy vapors might collect.  Remove open flames.  Use
     self-contained breathing apparatus (SCBA) for large spills.


HANDLING AND STORAGE


  Handling (Personnel)

     Use with sufficient ventilation to keep employee exposure
     below recommended limits.

  Storage

     Clean, dry area.  Do not heat above 52 deg C (125 deg F).


EXPOSURE CONTROLS/PERSONAL PROTECTION


  Engineering Controls

     Normal ventilation for standard manufacturing procedures is
     generally adequate.  Local exhaust should be used when large
     amounts are released.  Mechanical ventilation should be used
     in low or enclosed places.

  Personal Protective Equipment

     Impervious gloves and chemical splash goggles should be used
     when handling liquid.  Under normal manufacturing
     conditions, no respiratory protection is required when using
     this product.  Self-contained breathing apparatus (SCBA) is
     required if a large release occurs.

# Exposure Guidelines

   Applicable Exposure Limits
     METHANE, DICHLORODIFLUORO- ("PORTA" 12)
     PEL   (OSHA)             : 1,000 ppm, 4,950 mg/m3, 8 Hr. TWA
     TLV   (ACGIH)            : 1,000 ppm, 4,950 mg/m3, 8 Hr. TWA, A4
     AEL 	              : None Established

     * AEL is Acceptable Exposure Limit.  Where governmentally
     imposed occupational exposure limits which are lower than the AEL
     are in effect, such limits shall take precedence.


PHYSICAL AND CHEMICAL PROPERTIES


  Physical Data

     Boiling Point           : -29.8 C (-21.6 F)
     Vapor Pressure          : 94.5 psia at 25 deg C (77 deg F)
     Vapor Density           : 4.26 (Air = 1.0)
                               at 25 deg C (77 deg F)
     % Volatiles             : 100 WT%
     Solubility in Water     : 0.028 WT% @ 25 C (77 F) at 1 atm
     pH                      : Neutral
     Odor                    : Slight ethereal
     Form                    : Liquified gas
     Color                   : Clear, colorless
     Density                 : 1.315 g/cc at 25 deg C (77 deg F) -
                               Liquid


STABILITY AND REACTIVITY


  Chemical Stability

     Material is stable.  However, avoid open flames and high
     temperatures.

  Incompatibility with Other Materials

     Incompatible with alkali or alkaline earth metals- powdered
     Al, Zn, Be, etc.

  Decomposition

     Decomposition products are hazardous.  "Freon" 12 can be
     decomposed by high temperatures (open flames, glowing metal
     surfaces, etc.) forming hydrochloric and hydrofluoric acids,
     and possibly carbonyl halides.  These materials are toxic
     and irritating.  Contact should be avoided.

  Polymerization

     Polymerization will not occur.


TOXICOLOGICAL INFORMATION


  Animal Data

       Inhalation 30-minute LC50:  800,000 ppm in rats
       Oral ALD                 :  >1,000 mg/kg in rats

     Effects in animals from single high exposure by inhalation
     include anesthesia and irregular heartbeat (cardiac
     arrythmias).  Repeated inhalation exposures produced altered
     respiratory function.  Long-term studies showed no
     significant clinical, blood chemistry or pathological
     effects following repeated exposures.  The effects in
     animals from long-term ingestion of this material include
     slight alterations in blood chemistry and body weight gain.
     No other clinical, biochemical or pathological signs of
     toxicity have been observed.

     Tests in animals demonstrate no carcinogenic activity and no
     developmental or reproductive toxicity.  The compound does
     not produce heritable genetic damage in animals or genetic
     damage in bacterial and mammalian cell cultures.



ECOLOGICAL INFORMATION


  Ecotoxicological Information

     AQUATIC TOXICITY:

     "PORTA" 12:  48 hour EC50 - Daphnia magna:  95 mg/L.


DISPOSAL CONSIDERATIONS


  Waste Disposal

     Comply with Federal, State, and local regulations.
     Reclaim by distillation or remove to a permitted waste
     facility.


TRANSPORTATION INFORMATION


  Shipping Information

     DOT/IMO
     Proper Shipping Name    : DICHLORODIFLUOROMETHANE
     Hazard Class            : 2.2
     UN No.                  : 1028
     DOT/IMO Label           : NONFLAMMABLE GAS

     Shipping Containers

     Tank Cars.

     Cylinders
     Ton Tanks
     Reportable Quantity  : 5,000 lbs./2,270 kg.


REGULATORY INFORMATION


  U.S. Federal Regulations

     TSCA Inventory Status   : Reported/Included.

     TITLE III HAZARD CLASSIFICATIONS SECTIONS 311, 312

     Acute      : Yes
     Chronic    : No
     Fire       : No
     Reactivity : No
     Pressure   : Yes

     HAZARDOUS CHEMICAL LISTS

     SARA Extremely
     Hazardous Substance        - No
     CERCLA Hazardous Substance - Yes
     SARA Toxic Chemical        - See Components Section

     Superfund reportable discharge = 5000 lb.


OTHER INFORMATION


  NFPA, NPCA-HMIS

     NPCA-HMIS Rating
     Health                  : 1
     Flammability            : 0
     Reactivity              : 1

     Personal Protection rating to be supplied by user depending on use
     conditions.

  ----------------------------------------------------------------------

     The data in this Material Safety Data Sheet relates only to the
     specific material designated herein and does not relate to use in
     combination with any other material or in any process.

     
                                 End of MSDS