Tel: 514-956-7503

                                                                       Fax: 514-956-7504

                                                                     Internet: www.megs.ca

                                                                    Email : support@megs.ca





Montreal               St-Laurent              Tel : 514-956-7503      Fax : 514-956-7504

Ottawa                 Nepean                  Tel : 613-226-4228      Fax : 613-226-4229

Quebec                 Quebec                  Tel : 418-834-7447      Fax : 418-834-3774

     VINYLIDENE CHLORIDE- MATERIAL SAFETY DATA SHEET







TABLE OF CONTENTS:

                                                        24 Hour EMERGENCY

1.  Chemical Product and Company Identification

                                                        CONTACT

2.  Composition, Information on Ingredients

3.  Hazards Identification

4.  First Aid Measures

                                                        U.S- CHEMTREC 1-800-

5.  Fire Fighting Measures

                                                        424-9300

6.  Accidental Release Measures

7.  Handling and Storage

8.  Exposure Controls, Personal Protection              CANADA- CANUTEC 613-

9.  Physical and Chemical Properties

                                                        996-6666

10. Stability and Reactivity

11. Toxicological Information

12. Ecological Information

13. Disposal Considerations

14. Transport Information

15. Regulatory Information

16. Other Information









1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION-----------Up to Table

of Contents



Matheson Tri-Gas, Inc.



The telephone numbers listed below are

emergency numbers, please contact your local

branch for routine inquiries.



           USA                  CANADA

    959 Route 46 East        530 Watson Street

  Parsippany, New Jersey       Whitby, Ontario

     07054-0624 USA           L1N 5R9 Canada

   Phone: 973-257-1100      Phone: 905-668-3570



SUBSTANCE: VINYLIDENE CHLORIDE

SYMBOL: C2H2Cl2



TRADE NAMES/SYNONYMS:

1,1-DICHLOROETHENE; 1,1-DICHLOROETHYLENE; VDC; VINYLIDENE CHLORIDE

MONOMER; VINYLIDENE DICHLORIDE; VINYLIDENE CHLORIDE, INHIBITED; RCRA U078;

UN 1303; C2H2CL2; MAT25070; RTECS KV9275000



CHEMICAL FAMILY: halogens



CREATION DATE: Jan 24 1989

REVISION DATE: Mar 16 1999





2. COMPOSITION, INFORMATION ON INGREDIENTS-----------Up to Table of

Contents



COMPONENT: VINYLIDENE CHLORIDE



CAS NUMBER: 75-35-4



EC NUMBER (EINECS): 200-864-0



PERCENTAGE: >99.9





COMPONENT: 4-METHOXYPHENOL



CAS NUMBER: 150-76-5



EC NUMBER (EINECS): 205-769-8



PERCENTAGE: 0.02000





3. HAZARDS IDENTIFICATION-----------Up to Table of Contents



NFPA RATINGS (SCALE 0-4): HEALTH=2 FIRE=4 REACTIVITY=2



WHMIS CLASSIFICATION: BD2



EC CLASSIFICATION (ASSIGNED):

F+ Extremely Flammable

Xn Harmful



R 12-20-40



EC Classification may be inconsistent with independently-researched data.

EMERGENCY OVERVIEW:



Color: colorless



Physical Form: volatile liquid









Odor: faint odor, sweet odor



Major Health Hazards: harmful if swallowed, respiratory tract irritation, skin irritation, eye

irritation, central nervous system depression



Physical Hazards: Flammable liquid and vapor. Vapor may cause flash fire. May polymerize.

Containers may rupture or explode. May form peroxides during prolonged storage.



POTENTIAL HEALTH EFFECTS:



INHALATION:

  Short Term Exposure: irritation, symptoms of drunkenness, lung congestion, liver damage,

convulsions

  Long Term Exposure: kidney damage, tumors



SKIN CONTACT:

  Short Term Exposure: irritation (possibly severe)

  Long Term Exposure: same as effects reported in short term exposure



EYE CONTACT:

  Short Term Exposure: irritation, eye damage

  Long Term Exposure: same as effects reported in short term exposure



INGESTION:

  Short Term Exposure: symptoms of drunkenness, liver damage

  Long Term Exposure: same as effects reported in short term exposure



CARCINOGEN STATUS:

OSHA: N

NTP: N

IARC: N





4. FIRST AID MEASURES-----------Up to Table of Contents



INHALATION:

Remove from exposure immediately. Use a bag valve mask or similar device to perform artificial

respiration (rescue breathing) if needed. Get medical attention.



SKIN CONTACT:

Remove contaminated clothing, jewelry, and shoes immediately. Wash with soap or mild

detergent and large amounts of water until no evidence of chemical remains (at least 15-20

minutes). Get medical attention, if needed.



EYE CONTACT:

Wash eyes immediately with large amounts of water or normal saline, occasionally lifting upper

and lower lids, until no evidence of chemical remains. Get medical attention immediately.



INGESTION:

If vomiting occurs, keep head lower than hips to help prevent aspiration. Get medical attention, if

needed.





5. FIRE FIGHTING MEASURES-----------Up to Table of Contents

FIRE AND EXPLOSION HAZARDS:

Severe fire hazard. The vapor is heavier than air. Vapors or gases may ignite at distant ignition

sources and flash back. Vapor/air mixtures are explosive above flash point. Containers may

rupture or explode if exposed to heat.



EXTINGUISHING MEDIA:

alcohol resistant foam, carbon dioxide, regular dry chemical, water



Large fires: Use alcohol-resistant foam or flood with fine water spray.



FIRE FIGHTING:

Move container from fire area if it can be done without risk. Cool containers with water spray until

well after the fire is out. Stay away from the ends of tanks. For fires in cargo or storage area: Cool

containers with water from unmanned hose holder or monitor nozzles until well after fire is out. If

this is impossible then take the following precautions: Keep unnecessary people away, isolate

hazard area and deny entry. Let the fire burn. Withdraw immediately in case of rising sound from

venting safety device or any discoloration of tanks due to fire. For tank, rail car or tank truck:

Evacuation radius: 800 meters (1/2 mile). Do not attempt to extinguish fire unless flow of material

can be stopped first. Flood with fine water spray. Do not scatter spilled material with high-

pressure water streams. Cool containers with water spray until well after the fire is out. Apply

water from a protected location or from a safe distance. Avoid inhalation of material or

combustion by-products. Stay upwind and keep out of low areas. Water may be ineffective.



FLASH POINT:

14 F (-10 C)



LOWER FLAMMABLE LIMIT:

5.6%



UPPER FLAMMABLE LIMIT:

11.4%



AUTOIGNITION:

855 F (457 C)



FLAMMABILITY CLASS (OSHA):

IA





6. ACCIDENTAL RELEASE MEASURES-----------Up to Table of Contents

AIR RELEASE:

Reduce vapors with water spray. Stay upwind and keep out of low areas.



SOIL RELEASE:

Dig holding area such as lagoon, pond or pit for containment. Dike for later disposal. Absorb with

sand or other non-combustible material.



WATER RELEASE:

Collect with absorbent into suitable container. Collect spilled material using mechanical

equipment.



OCCUPATIONAL RELEASE:

Avoid heat, flames, sparks and other sources of ignition. Remove sources of ignition. Stop leak if

possible without personal risk. Reduce vapors with water spray. Small spills: Absorb with sand or

other non-combustible material. Collect spilled material in appropriate container for disposal.

Large spills: Dike for later disposal. Keep unnecessary people away, isolate hazard area and

deny entry. Stay upwind and keep out of low areas. Reportable Quantity (RQ): Notify Local

Emergency Planning Committee and State Emergency Response Commission for release

greater than or equal to RQ (U.S. SARA Section 304). If release occurs in the U.S. and is

reportable under CERCLA Section 103, notify the National Response Center at (800)424-8802

(USA) or (202)426-2675 (USA).





7. HANDLING AND STORAGE-----------Up to Table of Contents



Store and handle in accordance with all current regulations and standards. Subject to storage

regulations: U.S. OSHA 29 CFR 1910.106. Grounding and bonding required. Store in a cool, dry

place. Store in a well-ventilated area. Keep in the dark. Keep separated from incompatible

substances. Store outside or in a detached building. Store with flammable liquids. Store in a

tightly closed container. Containers must have overpressure release device. Avoid heat, flames,

sparks and other sources of ignition. Keep separated from incompatible substances. Monitor

inhibitor content. Avoid exposure to low temperatures or freezing. May form explosive peroxides.

Store in a tightly closed container. Avoid contact with light. Store in a cool, dry place. Monitor

inhibitor content. Do not evaporate or distill to dryness. Keep separated from incompatible

substances.





8. EXPOSURE CONTROLS, PERSONAL PROTECTION-----------Up to Table of

Contents



EXPOSURE LIMITS:



VINYLIDENE CHLORIDE:

1 ppm (4 mg/m3) OSHA TWA (vacated by 58 FR 35338, June 30, 1993)

5 ppm (20 mg/m3) ACGIH TWA

20 ppm (80 mg/m3) ACGIH STEL



VENTILATION: Provide local exhaust ventilation system. Ventilation equipment should be

explosion-resistant if explosive concentrations of material are present. Ensure compliance with

applicable exposure limits.



EYE PROTECTION: Wear splash resistant safety goggles. Provide an emergency eye wash

fountain and quick drench shower in the immediate work area.



CLOTHING: Wear appropriate chemical resistant clothing.

GLOVES: Wear appropriate chemical resistant gloves.



RESPIRATOR: The following respirators and maximum use concentrations are drawn from

NIOSH and/or OSHA.

At any detectable concentration -

Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-

demand or other positive-pressure mode.

Any supplied-air respirator with full facepiece and operated in a pressure-demand or other

positive-pressure mode in combination with a separate escape supply.

Escape -

Any air-purifying respirator with a full facepiece and an organic vapor canister.

Any appropriate escape-type, self-contained breathing apparatus.

For Unknown Concentrations or Immediately Dangerous to Life or Health -

Any supplied-air respirator with full facepiece and operated in a pressure-demand or other

positive-pressure mode in combination with a separate escape supply.

Any self-contained breathing apparatus with a full facepiece.





9. PHYSICAL AND CHEMICAL PROPERTIES-----------Up to Table of Contents



PHYSICAL STATE: liquid



COLOR: colorless



PHYSICAL FORM: volatile liquid



ODOR: faint odor, sweet odor



MOLECULAR WEIGHT: 96.64



MOLECULAR FORMULA: C2-H2-CL2



BOILING POINT: 86-90 F (30-32 C)



FREEZING POINT: -188 F (-122 C)



VAPOR PRESSURE: 400 mmHg @ 14.8 C



VAPOR DENSITY (air=1): 3.4



SPECIFIC GRAVITY (water=1): 1.213



WATER SOLUBILITY: 0.04% @ 20 C



PH: Not available



VOLATILITY: Not available



ODOR THRESHOLD: 500 ppm



EVAPORATION RATE: Not available



COEFFICIENT OF WATER/OIL DISTRIBUTION: Not available

SOLVENT SOLUBILITY:

Soluble: organic solvents





10. STABILITY AND REACTIVITY-----------Up to Table of Contents



REACTIVITY:

May form explosive peroxides. Avoid contact with temperatures above -40 C. Avoid contact with

heat, air, light or moisture and monitor inhibitor content. May polymerize. Closed containers may

rupture violently.



CONDITIONS TO AVOID:

Avoid heat, flames, sparks and other sources of ignition. Containers may rupture or explode if

exposed to heat.



INCOMPATIBILITIES:

metals, acids, oxidizing materials



HAZARDOUS DECOMPOSITION:

Thermal decomposition products: phosgene, halogenated compounds, oxides of carbon



POLYMERIZATION:

May polymerize. Avoid contact with heat or light and monitor inhibitor content.





11. TOXICOLOGICAL INFORMATION-----------Up to Table of Contents

VINYLIDENE CHLORIDE:



TOXICITY DATA:

6350 ppm/4 hour(s) inhalation-rat LC50; 200 mg/kg oral-rat LD50



CARCINOGEN STATUS:

IARC: Human Inadequate Evidence, Animal Limited Evidence, Group 3; ACGIH: A3 -Animal

Carcinogen



LOCAL EFFECTS:

Irritant: inhalation, skin, eye



ACUTE TOXICITY LEVEL:

Toxic: ingestion

Slightly Toxic: inhalation



TARGET ORGANS:

central nervous system, liver



TUMORIGENIC DATA:

Available.



MUTAGENIC DATA:

Available.



REPRODUCTIVE EFFECTS DATA:

Available.

12. ECOLOGICAL INFORMATION-----------Up to Table of Contents



ECOTOXICITY DATA:



FISH TOXICITY:

74000 ug/L 96 hour(s) LC50 (Mortality) Bluegill (Lepomis macrochirus)



INVERTEBRATE TOXICITY:

224000 ug/L 96 hour(s) LC50 (Mortality) Opossum shrimp (Mysidopsis bahia)



ALGAL TOXICITY:

>712000 ug/L 96 hour(s) EC50 (Photosynthesis) Diatom (Skeletonema costatum)



ENVIRONMENTAL SUMMARY:

Moderately toxic to aquatic life.





13. DISPOSAL CONSIDERATIONS-----------Up to Table of Contents

Subject to disposal regulations: U.S. EPA 40 CFR 262. Hazardous Waste Number(s): U078.

Hazardous Waste Number(s): D029. Dispose of in accordance with U.S. EPA 40 CFR 262 for

concentrations at or above the Regulatory level. Regulatory level- 0.7 mg/L. Dispose in

accordance with all applicable regulations.





14. TRANSPORT INFORMATION-----------Up to Table of Contents



U.S. DOT 49 CFR 172.101. SHIPPING NAME-UN NUMBER; HAZARD CLASS;

PACKING GROUP; LABEL:

Vinylidene chloride, inhibited-UN1303; 3; I; Flammable liquid





15. REGULATORY INFORMATION-----------Up to Table of Contents



U.S. REGULATIONS:

 TSCA INVENTORY STATUS: Y



 TSCA 12(b) EXPORT NOTIFICATION: Not listed.



CERCLA SECTION 103 (40CFR302.4): Y

  Vinylidene Chloride: 100 LBS RQ



 SARA SECTION 302 (40CFR355.30): N



SARA SECTION 304 (40CFR355.40): N



SARA SECTION 313 (40CFR372.65): Y

  Vinylidene Chloride



SARA HAZARD CATEGORIES, SARA SECTIONS 311/312 (40CFR370.21):

 ACUTE: Y

 CHRONIC: Y

 FIRE: Y

 REACTIVE: Y

  SUDDEN RELEASE: Y



OSHA PROCESS SAFETY (29CFR1910.119): N



STATE REGULATIONS:

 California Proposition 65:N



EUROPEAN REGULATIONS:



EC NUMBER (EINECS): 200-864-0



EC RISK AND SAFETY PHRASES:

 R 12     Extremely flammable.

 R 20     Harmful by inhalation.

 R 40     Possible risks of irreversible effects.

 S2       Keep out of reach of children.

 S7       Keep container tightly closed.

 S 16     Keep away from sources of ignition - No smoking.

 S 29     Do not empty into drains.



CONCENTRATION LIMITS:

C>=12.5% Xn R 20-40

1%<=C<12.5% Xn R 40





16. OTHER INFORMATION-----------Up to Table of Contents









Matheson Tri-Gas makes no express or implied warranties, guarantees or representations

regarding the product or the information herein, including but not limited to any implied

warranty of merchantability or fitness for use. Matheson Tri-Gas shall not be liable for any

personal injury, property or other damages of any nature, whether compensatory,

consequential, exemplary, or otherwise, resulting from any publication, use or reliance

upon the information herein.



©Copyright 1984-1999 MDL Information Systems. ©Copyright 2000 Matheson Tri-Gas. All rights

reserved.