Emergency Response Information
HIGHLY TOXIC LIQUEFIED GAS
1. Characteristics
- Corrosive, causing damage to skin, eyes and air passages.
- Highly toxic by inhalation or skin absorption.
2. Hazards
- May react in a fire to produce toxic or irritant gases or fumes.
- Heating of container(s) will cause pressure rise with risk of bursting and immediate release of expanding toxic and corrosive vapour cloud creating a pressure wave (risk of BLEVE).
- Contact with liquid will cause frostbite and severe damage to eyes.
- May attack metals and produce hydrogen gas which may form explosive mixture with air.
- The gas may be invisible and may enter sewers, basements or confined spaces.
3. Personal Protection
- Insulating undergarments and thick textile or leather gloves.
4. Intervention Actions
4.1 General
- PUBLIC SAFETY HAZARD - Warn people nearby to stay indoors with doors and windows closed. Stop any ventilation. Consider evacuation of people in immediate danger.
- Keep upwind. Put on protective equipment before entering danger area.
- Minimise number of personnel in risk area.
- Warn people to leave and not to re-enter basements, sewers or other confined spaces.
4.2 Spillage
- Contain spillage by any means available.
- Knock down or disperse gas cloud with water spray. Do not allow water spray to come into contact with liquid product.
- If substance has entered a water course or sewer, inform the responsible authority.
- Ventilate sewers and basements where there is no risk to personnel or public.
- If necessary to reduce toxic vapour hazard, cover liquid pool e.g. with foam.
4.3 Fire (involving the substance)
- Keep container(s) cool with water.
- Work from protected position to reduce risk to personnel. Use unmanned monitors or lances.
- Use water spray to knock down fire fumes if possible.
- Avoid unnecessary run-off of extinguishing media which may cause pollution.
5. First Aid
- If substance has got into eyes, wash out with water for at least 15 minutes and seek immediate medical attention.
- Remove contaminated clothing immediately and drench affected skin with plenty of water.
- Persons who have been in contact with the substance or have inhaled fumes should get immediate medical attention. Pass on all available product information.
- Mouth to mouth resuscitation should be avoided. Use alternative methods, preferably with oxygen or compressed air driven apparatus.
- Thaw frosted parts carefully with cold water.
6. Essential Precautions For Product Recovery
- Do not use standard recovery equipment. Seek specialist advice immediately.
- Recover spilled product in hermetically sealed container.
7. Precautions After Intervention
7.1 Undressing
- Drench contaminated suit and breathing apparatus with water before removing facemask and suit.
- Use chemical protection suit and self contained breathing apparatus while undressing contaminated co-workers or handling contaminated equipment.
- Contain decontamination run off.
7.2 Equipment Clean Up
- Seek specialist advice before leaving incident.
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