Sodium Hydrosulfide

CAS RN:16721-80-5

DOT Emergency Guidelines

Go to Guide 135
Go to Guide 154

GUIDE 135
SUBSTANCES - SPONTANEOUSLY COMBUSTIBLE
POTENTIAL HAZARDS
FIRE OR EXPLOSION
· Flammable/combustible material.
· May ignite on contact with moist air or moisture.
· May burn rapidly with flare-burning effect.
· Some react vigorously or explosively on contact with water.
· Some may decompose explosively when heated or involved in a fire.
· May re-ignite after fire is extinguished.
· Runoff may create fire or explosion hazard.
· Containers may explode when heated.
HEALTH
· Fire will produce irritating, corrosive and/or toxic gases.
· Inhalation of decomposition products may cause severe injury or death.
· Contact with substance may cause severe burns to skin and eyes.
· Runoff from fire control may cause pollution.
PUBLIC SAFETY
· CALL EMERGENCY RESPONSE Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.
· As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.
· Stay upwind, uphill and/or upstream.
· Keep unauthorized personnel away.
PROTECTIVE CLOTHING
· Wear positive pressure self-contained breathing apparatus (SCBA).
· Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection.
· Structural firefighters' protective clothing will only provide limited protection.
EVACUATION
Spill
· See the Initial Isolation and Protective Action Distances for highlighted materials. For non-highlighted materials, increase, in the downwind direction, as necessary, the isolation distance shown under "PUBLIC SAFETY".
Fire
· If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.
In Canada, an Emergency Response Assistance Plan (ERAP) may be required for this product. Please consult the shipping document and/or the Canada and United States National Response Centers reference document.
EMERGENCY RESPONSE
FIRE
· DO NOT USE WATER, CO2 OR FOAM ON MATERIAL ITSELF.
· Some of these materials may react violently with water.
EXCEPTION: For Xanthates, UN3342 and for Dithionite (Hydrosulfite/Hydrosulphite) UN1384, UN1923 and UN1929, USE FLOODING AMOUNTS OF WATER for SMALL AND LARGE fires to stop the reaction. Smothering will not work for these materials, they do not need air to burn.
Small Fire
· Dry chemical, soda ash, lime or DRY sand, EXCEPT for UN1384, UN1923, UN1929 and UN3342.
Large Fire
· DRY sand, dry chemical, soda ash or lime EXCEPT for UN1384, UN1923, UN1929 and UN3342, or withdraw from area and let fire burn.
· CAUTION: UN3342 when flooded with water will continue to evolve flammable Carbon disulfide/Carbon disulphide vapors.
· Move containers from fire area if you can do it without risk.
Fire involving Tanks or Car/Trailer Loads
· Fight fire from maximum distance or use unmanned hose holders or monitor nozzles.
· Do not get water inside containers or in contact with substance.
· Cool containers with flooding quantities of water until well after fire is out.
· Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.
· ALWAYS stay away from tanks engulfed in fire.
SPILL OR LEAK
· Fully encapsulating, vapor-protective clothing should be worn for spills and leaks with no fire.
· ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area).
· Do not touch or walk through spilled material.
· Stop leak if you can do it without risk.
Small Spill
EXCEPTION: For spills of Xanthates, UN3342 and for Dithionite (Hydrosulfite/Hydrosulphite), UN1384, UN1923 and UN1929, dissolve in 5 parts water and collect for proper disposal.
· CAUTION: UN3342 when flooded with water will continue to evolve flammable Carbon disulfide/Carbon disulphide vapors.
· Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain.
· Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal.
· Prevent entry into waterways, sewers, basements or confined areas.
FIRST AID
· Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves.
· Move victim to fresh air.
· Call 911 or emergency medical service.
· Give artificial respiration if victim is not breathing.
· Administer oxygen if breathing is difficult.
· Remove and isolate contaminated clothing and shoes.
· In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes.
· Keep victim calm and warm.
ERG 2016

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GUIDE 154
SUBSTANCES - TOXIC and/or CORROSIVE (Non-Combustible)
POTENTIAL HAZARDS
HEALTH
· TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death.
· Contact with molten substance may cause severe burns to skin and eyes.
· Avoid any skin contact.
· Effects of contact or inhalation may be delayed.
· Fire may produce irritating, corrosive and/or toxic gases.
· Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
FIRE OR EXPLOSION
· Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
· Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.).
· Contact with metals may evolve flammable hydrogen gas.
· Containers may explode when heated.
. For electric vehicles or equipment, GUIDE 147 (lithium ion batteries) or GUIDE 138 (sodium batteries) should also be consulted.
PUBLIC SAFETY
· CALL EMERGENCY RESPONSE Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.
· As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.
· Keep unauthorized personnel away.
· Stay upwind, uphill and/or upstream.
· Ventilate enclosed areas.
PROTECTIVE CLOTHING
· Wear positive pressure self-contained breathing apparatus (SCBA).
· Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection.
· Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible.
EVACUATION
Spill
· See the Initial Isolation and Protective Action Distances for highlighted materials. For non-highlighted materials, increase, in the downwind direction, as necessary, the isolation distance shown under "PUBLIC SAFETY".
Fire
· If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.
In Canada, an Emergency Response Assistance Plan (ERAP) may be required for this product. Please consult the shipping document and/or the Canada and United States National Response Centers reference document.
EMERGENCY RESPONSE
FIRE
Small Fire
· Dry chemical, CO2 or water spray.
Large Fire
· Dry chemical, CO2, alcohol-resistant foam or water spray.
· Move containers from fire area if you can do it without risk.
· Dike fire-control water for later disposal; do not scatter the material.
Fire involving Tanks or Car/Trailer Loads
· Fight fire from maximum distance or use unmanned hose holders or monitor nozzles.
· Do not get water inside containers.
· Cool containers with flooding quantities of water until well after fire is out.
· Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.
· ALWAYS stay away from tanks engulfed in fire.
SPILL OR LEAK
· ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area).
· Do not touch damaged containers or spilled material unless wearing appropriate protective clothing.
· Stop leak if you can do it without risk.
· Prevent entry into waterways, sewers, basements or confined areas.
· Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers.
· DO NOT GET WATER INSIDE CONTAINERS.
FIRST AID
· Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves.
· Move victim to fresh air.
· Call 911 or emergency medical service.
· Give artificial respiration if victim is not breathing.
· Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.
· Administer oxygen if breathing is difficult.
· Remove and isolate contaminated clothing and shoes.
· In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes.
· For minor skin contact, avoid spreading material on unaffected skin.
· Keep victim calm and warm.
· Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed.
ERG 2016

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Find more information on this substance at: Hazardous Substances Data Bank , TOXMAP , TOXNET , PubMed