UN NUMBER/ 1184
Other names / 1,2 Dicholoroethane, sym-Dichloroethane, Dutch Oil, EDC, Ethane, 1,2-dichloroEthylene chloride, Glycol dichloride
USCG Number / 36
CH2 Cl CH Cl
Colour/ Clear, colourless , oily liquid
Marpol Category / Y
Viscosity @ 20C / 0.9 mPa
Prewash Marpol / No
Precleaning / with COLD WATER.
Melting Point / -36 0 C
Specific Gravity / 1.26 @25.C
Corrn factor for 1 C/ 0.000146
Solubility in water / Slight
Heating / No
Heat Adjacent / 30 C.
N2 / May be required
Flash Point / +13 C
Boiling point/ +84 C
Auto Ignition / 413 C
Flammability range/ 6.2% to 15.9 by Vol. in air
Vapor density / 3.42
Vapor Pressure / 90 mm Hg at 200C
Vapor toxicity/ Yes
Skin contact/ Burn and can cause dermatitis.
ST/ 24.15 dynes per cm at 20C
Moisture sensitive/ yes ( corrodes SS , check moisture content )
Coating/ Check paint resistance tables, attacks epoxy if impure.
PEL/TWA : 1 ppm/Skin
STEL : 2 ppm
TLV/TWA : 10 ppm/Skin
IDLH : 50 ppm
Odour Threshold : 200ppm ( Threshold @ 29.4 C ) Chloroform
(Odor Threshold is not considered adequate warning of potential dangerous vapor concentration. Detectable odor is greater than TLV, exposure to potentially dangerous vapor concentration may occur before the vapor is detected by smell.)
Stable/ Yes, but can decompose to poisonous Phosgene
No wall wash required. Visual inspection of lines and tanks.
Wall wash may be required depending on last cargo as per charterers/shippers requirements.
Always check with Operators regarding wall wash requirements for this cargo as some charterers may require wall wash tests. First foot sampling is carried out.
Tank Cleaning Requirements prior loading:
The intended cargo tanks, pipelines and hoses should be absolutely 100% dry and free of cargo residues.
Some times wall wash test is carried out to methanol standard by some charterers/shippers (Occidental, Mitsui etc) depending on last cargoes (eg gas oil etc)
Loose coatings, blisters are to be removed.
Cargo stowage and handling of cargo:
Colourless, oily heavy liquid with chloroform like odor.
Ethylene dichloride is a flammable liquid and vapor.
When transferring this product there is potential for static build up. Consideration should be given to bonding/grounding during cargo transfer.
Harmful if swallowed, inhaled or absorbed through skin. Affects central nervous system, liver, kidneys and cardiovascular system. Causes irritation to skin, eyes and respiratory tract and is a cancer causing substance.
There are water content restrictions for both Zinc and Epoxy tanks. Carefully check coating makers restrictions for last cargo and next cargo particularly for epoxy coated tanks.
Comply with special requirements as per IBC code, Coating compatibility, Certificate of Fitness, adjacent cargo compatibility as per USCG 46CFR, P & A Manual, local/terminal requirements and MSDS for the cargo.
This is a water sensitive cargo. Maximum water content for first foot and completion of loading is restricted (Normally maximum water content allowed in first foot is less than 100ppm)
Prior loading, nitrogen purging of cargo tanks may be carried out at some terminals (eg Occidental) to dry the tanks, lines and pumps and to reduce oxygen content of tank atmosphere to less than 5%.
Where nitrogen purging of cargo tanks is not carried out prior loading, it is recommended to blow through all cargo pipelines with dry air (nitrogen) to remove moisture and to dry the lines.
Company’s procedures for N2 purging of cargo tanks/lines to be complied with to prevent tank over pressurisation when carrying out this operations.
During summer months sweating of cargo tanks is possible due to high humidity of ambient air. Severe sweating of cargo tanks can also be caused by low temperature of cargo in adjacent cargo tanks (eg Styrene monomer loaded into adjacent tanks). Surveyors may fail the tanks with water condensation on the deck heads, tank bulkheads and/or tank tops, as water may contaminate ethylene dichloride cargo being loaded. The 1st foot may also fail due high water content in first foot.
The tanks must be dried prior loading water sensitive cargoes. Prior arrival load port all cargo lines and tanks for loading ethylene dichloride must be made absolutely dry and maintained in dry condition for loading. Loading sequence to be adjusted so that low temperature cargoes (eg styrene monomer) that can cause sweating in adjacent bulkheads are loaded later keeping an ullage difference of about 3 metres in adjacent tanks.
Partial loaded tanks with small quantity of ethylene dichloride are liable to absorb moisture thereby increasing water content.
In case of cargo tank rejection due to high water content in first foot (ie fist foot failure), operators/managers to be contacted for advice. Normally, where it is not possible to pump the contaminated cargo back to shore, the contaminated cargo is transferred to an empty tank on board with terminal/operator/charterers agreement. All cargo tanks are well stripped to the maximum extent possible and the loading resumed for first foot again.
(Man entry to educt unpumpable residues at pump sump is not required and should not be made)
Wear chemical gloves, protective clothing and have all purpose vapor canister available when sampling, gauging, connecting/disconnecting hoses and when handling minor spillages on deck. Avoid contact with liquid.
Carriage and during passage at sea:
Drain PV vents weekly to remove any water collected in the vent line. Ensure all tank openings are well secured and take precautions against entry of shipping seas, sea sprays/rain into cargo tanks via PV vents.
Discharge and tank cleaning:
Normal discharge and stripping as per P & A Manual requirements.
Comply with Marpol Annex II as per P & A Manual.
Plan discharge so as not to leave large ullage space in tank when cargo is commingled.
Extent of tank cleaning will depend on next cargo.
The cargo tank can be ventilated as per P & A Manual.
For Zinc Tanks : Wash the tanks with COLD water for at least 3 hours using portable machines. Comply with Marpol Annex II as per P & A Manual.
When adjacent tanks are empty and had been washed with cold water, hot water washing at 75C can be carried out to remove odor. Thorough ventilation is required to remove odor.
Chemical recirculation may be required.
Seek advice from operators.
For epoxy tanks: Ventilate tanks to gas free.
- Comply with coating makers' requirements.
- Seek advice from operators for additional cleaning.
When preparing tanks to methanol standard after EDC, normally not much problem is experienced but sometimes Color and PTT problem may be encountered. These are quickly over come with additional cleaning.
Fire and Explosion
Ethylene dichloride is a flammable liquid. Above flashpoint, vapor air mixtures are explosive within flammable range. Sealed containers may rupture when heated. Contact with strong oxidisers may cause fire. When in contact with a hot surface, ethylene dichloride decomposes into phosgene, hydrogen chloride, acetylene and vinyl chloride gases, when heated to decomposition, which is highly poisonous.
Ignited by heat, spark or open flame.
Vapors are heavier than air and may flow along the surfaces for considerable distance to source of ignition and flash back may occur.
Avoid breathing vapors.
Wear full protective clothing and positive pressure self contained breathing apparatus.
Keep tanks cool with water spray to prevent pressure buildup, auto ignition or explosion.
Extinguishing agent :
Small fire : Use CO2,Dry chemical, water fog /spray or foam. Water spray may be used to keep bulkheads and deck cool, dilute spills to nonflammable mixtures, protect personnel attempting to stop leak and disperse vapors.
Large fire : Evacuate area. Fight fire from protected location or maximum possible distance. Stop flow of gas before extinguishing fire. Use alcohol foam, water spray or fog. Water may be ineffective on fire but good for cooling exposed deck and equipments until fire is out.
- Ethylene dichloride decomposes into phosgene gas, when heated, which is highly poisonous
- Highly flammable and vapor air mixtures are explosive within flammable range.
- Contact with strong oxidisers may cause fire
- Vapor harmful. May cause systematic poisoning through inhalation.
- Toxic by inhalation, skin contact and ingestion. Irritating to skin, eyes and mucous membranes.
- Vapors are heavier than air and will collect and stay in low areas
- Vapors may travel long distance to ignition source and flashback
- Vapors in confined areas may explode when exposed to fire
- Stay up wind
- Determine the extend of the problem
- Isolate the area of release or fire and deny entry. Evacuate the area.
- Remove all ignition sources
- Evacuate the immediate area and downwind for a large release
- Notify local authorities and terminals
Health Hazard data
- Suspected carcinogen.
- Toxic by inhalation, ingestion and skin contact. It may cause narcosis-like effects, headache, nausea, vomiting and weakness.
- Vapors very irritating to skin, eyes and respiratory tracts. Affects central nervous system, liver, kidneys and cardiovascular system.
- Severe over exposure may result in death.
Ethylene dichloride is a clear, colorless, oily liquid with chloroform like sweet odor.
Short Exposure Tolerance –2 ppm
- Remove victim to fresh air.
- Give artificial respiration if breathing stops.
- If breathing is difficult, give oxygen.
- Decontaminate victim
- Inhalation-remove victim to fresh air and give oxygen if available
- Obtain medical attention.
Inhaling vapors at concentrations exceeding occupational exposure limits causes irritation of respiratory tract. May cause headache, weakness, cyanosis, nausea, vomiting and diarrhea. This symptoms may be followed by nervous system effects, liver damage, kidney damage, adrenal gland damage, cyanosis, weak and rapid pulse and unconsciousness. Death can occur from respiratory and circulatory failure.
Eye contact : Flush affected areas gently with water for 15 minutes keeping eyelids open. Obtain medical attention. Remove contaminated clothing. Vapors cause eye irritation. Splashes cause severe irritation, possible cornea burns and eye damage.
Skin contact : Remove contaminated clothing and shoes while under emergency shower. Flush affected areas gently with soap and water for at least 15 minutes Apply a clean dry dressing. Wash contaminated clothing with soap and water. Causes irritation, rash and blister formation. Prolonged contact can cause skin. Can be absorbed through skin with toxic effects.
Ingestion : If swallowed, DO NOT INDUCE VOMITING. If conscious give large quantities of water. Never give anything by mouth to an unconscious person. Obtain medical attention. Causes irritation to the gastrointestinal tract. Symptoms may include nausea, vomiting and diarrhea. Toxic effects are parallel to those of inhalation. Doses of 0.5 –1.0 g/kg can be fatal.
Chronic Exposure : Repeated or prolonged exposure may cause weight loss, low blood pressure, jaundice, reduced urinary output, dermatitis, eye damage and anemia. Persons with pre-existing skin disorders or eye problems, or impaired liver, kidney, cardiovascular, neurological or respiratory function may be more susceptible to the effects of the substance.
If victim is unconscious, do not give anything by mouth. Ensure that the victim’s airway is open and lay the victim on his side with head lower than the body.
Toxic effects may be delayed
GET MEDICAL ADVICE
Spill or leak procedure
Sinker. Not significantly bioaccumulative. Solubility in water is slight.
Wear breathing apparatus, chemical gloves, shoes and protective clothing. Avoid contact with liquid. Secure all ignition sources. Use non sparking tools and equipments.
Spill/release, no fire :
- Notify Authorities. Isolate area.
- Stop the release if it can be done safely from a distance. Secure ignition sources.
- Prevent material and runoff from entering sea if it can be done safely well ahead of the release
- Keep upwind. Use large amount of water to disperse vapors. Contain spill in appropriate container.
Absorb spilled material with compatible inert material (eg dry sand) and place in a suitable waste container. DO NOT USE COMBUSTIBLE MATERIAL SUCH AS SAW DUST. Use water spray to disperse the vapors, to protect personnel attempting to stop leak and to flush spills away from exposures.
- Recover EDC and prevent it from entering sea as much as possible.
- Consider the application of foam to spilled liquid to contain vapors.
- Do not get water inside the cargo tanks containing EDC.
- Ventilate confined area if it can be done without placing personnel at risk
- SECURE IGNITION SOURCES.
Stability - Stable under ordinary conditions of use and storage. Darkens on exposure to air or light.
When heated to decomposition emits toxic fumes-phosgene, hydrogen chloride, carbon dioxide, carbon monoxide etc.
Avoid heat, flame and other sources of ignition.
Non-corrosive at ambient temperatures but corrosive when contaminated with water at elevated temperatures.
Oxidising agents, reducing agents, organic peroxides, alkali, nitric acid, caustics etc are incompatible materials.
January 21, 2017 at 9:35 AM
Namaste Ajit Ji,
MAIN STREAM MEDIA GREATEST FEAR
After four days, in fear of losing credibility among people, they have now started telecasting about breeds, A2 Milk, Corporate involvement and cases with PETA - SUN NEWS telecasted – 20 minutes speech on these topics.
Ajit Ji – God bless you – GOMATHA and RISHABA Deva will sure bless you and your family.
I am proud to be a part of this movement and this blog.
With Great Gratitude
Capt. Ajit Vadakayil
January 21, 2017 at 10:18 AM
I WANT ALL MY READERS IN INDIA AND ABROAD
SPREAD THESE THREE LINKS BELOW LIKE WILD FIRE TWITTER/ FACEBOOK/ WHATSUP / EMAIL..
TAMIL READERS MUST TRANSLATE IN TAMIL TO MAKE JALLIKKATTU PROTESTORS UNDERSTAND WHAT THEY ARE DOING
IT IS NOT ABOUT TAMIL PRIDE
IT IS ABOUT SAVING BHARATMATA
BJP GOVT WONT DO IT , AS THEY ARE MORE INTERESTED IN SAVING MODI THAN BHARATMATA
MODI IS PERSONALLY RESPONSIBLE FOR DECIMATING VEDIC HUMPED BULLS
WHY IS INDIA THIS PLANETs NO 1 BEEF EXPORTER ?
BECAUSE HUMPED COW BEEF IS SAFE --HUMPLESS COW BEEF GIVES YOU DEMENTIA IN OLD AGE.....
AGAIN I ASK TAMIL READERS TO SEND THESE THREE LINKS TO EVERY MLA, EVERY DICTRICT COLLECTOR, EVERY TAMIL MINISTER , EVERY TAMIL CELEBRITY AND CM
DO IT NOW
I AM THE FIRST ON THE PLANET TO SAY THAT HUMPED VEDIC COW GIVES NUTRITIOUS A2 MILK ...AND HUMPLESS WESTERN COW GIVES TOXIC A1 MILK..
WHEN QUANTITY INCREASES --QUALITY REDUCES=--- GODS EQUATION ....
capt ajit vadakayil
Below: Celebrating Jallikkattu --20 minutes ago
DEMOCRAT BUM LOSERS USING MEDIA BASTARDS TO GIVE BULL....
THE FLOOR WAS MADE WHITE TO PICK OUT EMPTY SPOTS AND SHOW THAT TRUMP ATTRACTED SPARSE CROWDS..
TO BE CONTINUED-
CAPT AJIT VADAKAYIL
30 YEARS IN COMMAND