Safety Data Sheet
Product : Page :1/5
Chlorine
Date : 21/04/2009
MSDS Nr : 354-00-0001BOC(A) Version : 1.05
1 IDENTIFICATION OF THE SUBSTANCE/PREPARATION AND OF THE COMPANY
Product name Chlorine
Chemical formula Cl2
Company identification see heading and/or footer
Emergency phone numbers see heading and/or footer
2 COMPOSITION/INFORMATION ON INGREDIENTS
Substance/Preparation Substance.
Components/Impurities Contains no other components or impurities which will influence the classification of the
product.
CAS Nr 7782-50-5
EC Nr (from EINECS) 231-959-5
3 HAZARDS IDENTIFICATION
Hazards identification Toxic by inhalation.
Corrosive to eyes, respiratory system and skin.
Oxidant. Strongly supports combustion. May react violently with combustible materials.
Liquefied gas
4 FIRST AID MEASURES
Inhalation Toxic by inhalation.
Remove victim to uncontaminated area wearing self contained breathing apparatus. Keep
victim warm and rested. Call a doctor. Apply artificial respiration if breathing stopped.
Delayed adverse effects possible.
Skin/eye contact May cause chemical burns to skin and cornea (with temporary disturbance to vision)
Immediately flush eyes thoroughly with water for at least 15 minutes.
Remove contaminated clothing. Drench affected area with water for at least 15 minutes
Obtain medical assistance
Ingestion Ingestion is not considered a potential route of exposure.
5 FIRE FIGHTING MEASURES
Specific hazards Non flammable
Supports combustion.
Exposure to fire may cause containers to rupture/explode.
Hazardous combustion products None that are more toxic than the product itself.
Suitable extinguishing media All known extinguishants can be used.
Specific methods If possible, stop flow of product.
Move away from the container and cool with water from a protected position.
Special protective equipment for fire fighters Use self-contained breathing apparatus and chemically protective clothing.
BOC, Priestley Road, Worsley, Manchester M28 2UT Emergency tel: 0800 02 0800 - - UNITED KINGDOM
Safety Data Sheet
Product : Page :2/5
Chlorine
Date : 21/04/2009
MSDS Nr : 354-00-0001BOC(A) Version : 1.05
6 ACCIDENTAL RELEASE MEASURES
Personal precautions Evacuate area.
Ensure adequate air ventilation.
Eliminate ignition sources.
Use self-contained breathing apparatus and chemically protective clothing.
Environmental precautions Try to stop release.
Reduce vapour with fog or fine water spray.
Prevent from entering sewers, basements and workpits, or any place where its accumulation
can be dangerous.
Clean up methods Ventilate area.
Wash contaminated equipment or sites of leaks with copious quantities of water.
Hose down area with water.
7 HANDLING AND STORAGE
Handling and storage Use no oil or grease.
Open valve slowly to avoid pressure shock.
Segregate from flammable gases and other flammable materials in store.
Suck back of water into the container must be prevented.
Do not allow backfeed into the container.
Use only properly specified equipment which is suitable for this product, its supply pressure
and temperature. Contact your gas supplier if in doubt.
Refer to supplier's container handling instructions.
Keep container below 50癈 in a well ventilated place.
8 EXPOSURE CONTROLS/PERSONAL PROTECTION
Exposure limit value for country UK: Chlorine - STEL: 0.5ppm (EH40/2005)
Short-term exposure limit (STEL): 15 minute reference period
Germany: Chlorine - MAK:0.5ppm
France: Chlorine - VLE:1ppm
Personal protection Keep suitable chemically resistant protective clothing readily available for emergency use.
Keep self contained breathing apparatus readily available for emergency use.
Do not smoke while handling product.
Ensure adequate ventilation.
Protect eyes, face and skin from liquid splashes.
9 PHYSICAL AND CHEMICAL PROPERTIES
Molecular weight 71
Melting point -101 癈
Boiling point -34 癈
Critical temperature 144 癈
BOC, Priestley Road, Worsley, Manchester M28 2UT Emergency tel: 0800 02 0800 - - UNITED KINGDOM
Safety Data Sheet
Product : Page :3/5
Chlorine
Date : 21/04/2009
MSDS Nr : 354-00-0001BOC(A) Version : 1.05
Relative density, gas 2.5 (air=1)
Relative density, liquid 1.6 (water=1)
Vapour Pressure 20癈 6.8 bar
Solubility mg/l water 8620 mg/l
Appearance/Colour Greenish gas
Odour Pungent
Flammability range Oxidiser.
Autoignition temperature Not applicable
Other data Gas/vapour heavier than air. May accumulate in confined spaces, particularly at or below
ground level.
10 STABILITY AND REACTIVITY
Stability and reactivity May react violently with combustible materials
May react violently with reducing agents.
Violently oxidises organic material.
Reacts with water to form corrosive acids.
May react violently with alkalis.
With water causes rapid corrosion of some metals.
11 TOXICOLOGICAL INFORMATION
General Severe corrosion to skin, eyes and respiratory tract at high concentrations.
Delayed fatal pulmonary oedema possible.
LC50/1h (ppm) 293 ppm
12 ECOLOGICAL INFORMATION
General May cause pH changes in aqueous ecological systems.
Toxic to water organisms.
13 DISPOSAL CONSIDERATIONS
General Avoid discharge to atmosphere.
Do not discharge into any place where its accumulation could be dangerous.
Gas may be scrubbed in alkaline thiosulphate solution under controlled conditions to avoid
violent reaction.
Contact supplier if guidance is required.
14 TRANSPORT INFORMATION
Proper shipping name CHLORINE
UN Nr 1017
Class 2
ADR/RID Classification code 2TOC
ADR/RID Hazard Nr 265
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Safety Data Sheet
Product : Page :4/5
Chlorine
Date : 21/04/2009
MSDS Nr : 354-00-0001BOC(A) Version : 1.05
Packing group None
Labelling ADR Label 2.3: toxic substance.
Label 5.1: fire intensifying risk.
Label 8: corrosive substance.
IMDG EmS codes F-C, S-W
IMDG Marine pollutant Yes
IATA passenger packing instruction Forbidden
IATA passenger max. quantity/pack Forbidden
IATA cargo packing instruction Forbidden
IATA cargo max. quantity/pack Forbidden
Other transport information Avoid transport on vehicles where the load space is not separated from the driver's
compartment.
Ensure vehicle driver is aware of the potential hazards of the load and knows what to do in
the event of an accident or an emergency.
Before transporting product containers ensure that they are firmly secured and:
- cylinder valve is closed and not leaking
- valve outlet cap nut or plug (where provided) is correctly fitted
- valve protection device (where provided) is correctly fitted
- there is adequate ventilation.
- compliance with applicable regulations.
15 REGULATORY INFORMATION
Number in Annex I of Dir 67/548 017-001-00-7.
EC Classification T;R23|Xi;R36/37/38|N;R50
-Symbols T: Toxic
N: Dangerous for the environment
Labelling of cylinders
-Symbols Label 2.3: toxic substance.
Label 5.1: fire intensifying risk.
Label 8: corrosive substance.
-Risk phrases R23 Toxic by inhalation.
R36/37/38 Irritating to eyes, respiratory system and skin.
R50 Very toxic to aquatic organisms.
-Safety phrases S1 Keep locked up.
S2 Keep out of the reach of the children.
S9 Keep container in well ventilated place.
S45 In case of accident or if you feel unwell, seek medical advice immediately (show the
label where possible).
S61 Avoid release to the environment. Refer to special instructions/Safety data sheets.
BOC, Priestley Road, Worsley, Manchester M28 2UT Emergency tel: 0800 02 0800 - - UNITED KINGDOM
Safety Data Sheet
Product : Page :5/5
Chlorine
Date : 21/04/2009
MSDS Nr : 354-00-0001BOC(A) Version : 1.05
16 OTHER INFORMATION
Ensure all national/local regulations are observed.
Users of breathing apparatus must be trained.
Ensure operators understand the toxicity hazard.
Before using this product in any new process or experiment, a thorough material compatibility and safety study should be carried out.
Details given in this document are believed to be correct at the time of going to press. Whilst proper care has been taken in the preparation of this document, no
liability for injury or damage resulting from its use can be accepted.
This Safety Data Sheet has been established in accordance with the applicable European Directives and applies to all countries that have translated the Directives in
their national laws.
End of document.
Number of pages :5
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