Registration Dossier

Guidance on Safe Use

Guidance on Safe Use

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Administrative data

First-aid measures

· Description of first aid measures
· following inhalation:
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. Do NOT use mouth-to-mouth resuscitation.
· following skin contact:
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. If irritation occurs, seek medical advice.
· following eye contact:
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids.
Get medical aid.
· following ingestion:
Get medical aid immediately.
· notes for the doctor:
Treat symptomatically and supportively.

· Most important symptoms and effects, both acute and delayed
No information available.

· Indication of any immediate medical attention and special treatment needed
No information available.

Fire-fighting measures

· Extinguishing media
· Excessive quantity of water, dry chemical or carbon dioxide. Use equipment/media appropriate to surrounding fire conditions.
· Special hazards arising from the substance
Material may decompose after long exposure to high moisture level. May decompose when heated above 50 °C or involved in a fire.
· Advice for fire-fighters
Because fire may produce toxic thermal decomposition products, wear a self-contained breathing apparatus (SCBA) with a full face-piece operated in pressure-demand or positive-pressure mode. Do not release runoff from fire control methods to sewers or waterways.

Accidental release measures

· Personal precautions, protective equipment and emergency procedures
Wash contaminated clothing before reuse.
Wear personal protective equipment.
Ensure adequate ventilation
Evacuate the danger area, observe emergency procedures, and consult an expert.
· Environmental precautions
Prevent spillage from entering drains, sewer, basement or confined areas. If the spillage contaminates rivers, lakes or drains inform respective authorities.
· Methods and material for containment and cleaning up
Small Spills: Sweep up. Collect and seal in properly labeled containers for disposal.
Large Spills: Wear a self contained breathing apparatus and appropriate personal protection. (See Exposure Controls, Personal Protection section). Provide ventilation. Do not let this chemical enter the environment. Do not release into sewers or waterways.
· Reference to other sections
Please see Section "Exposure Controls/personal protection"

Handling and storage

· Precautions for safe handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Do not ingest or inhale. Keep container tightly closed. Avoid ingestion and inhalation.
· Conditions for safe storage, including any incompatibilities
Store in a cool (below 35 °C), dry area out of direct sunlight. Protect from atmospheric moisture. Store away from oxidizing agents. Do not add to hot materials; do not grind or subject to frictional heat as decomposition may result.
· Specific end use(s)
No information available

Transport information

Land transport (ADR/RID)

UN number:
3341
Proper shipping name and description:
Thiourea dioxide
Language:
English
Class:
4.2
Packaging group:
III
Labels:
Spontaneous combustible
SpecialProvisionsopen allclose all

Inland waterway transport (ADN(R))

UN number:
3341
Shippingopen allclose all
Class:
4.2
Packaging group:
III
Labels:
Spontaneous combustible
Remarksopen allclose all

Marine transport (IMDG)

UN number:
3341
Proper shipping name and description:
Thiourea dioxide
Class:
4.2
Packaging group:
III
Labels:
Spontaneous combustible
Remarksopen allclose all

Air transport ICAO/IATA

UN number:
3341
Proper shipping name and description:
Thiourea dioxide
Class:
4.2
Packaging group:
III
Labels:
Spontaneous combustible
Remarksopen allclose all
SpecialProvisionsopen allclose all

Exposure controls / personal protection

1. Control parameters
Exposure limit values:
Not available
2. Exposure controls
Appropriate engineering controls:
Provide general or local exhaust ventilation systems. Local exhaust ventilation is preferred because it prevents contaminant dispersion into the workarea by controlling it at its source. Make emergency eyewash stations, safety/quick-drench showers, and washing facilities available in work area.
Individual protection measures:
Eye/face protection:
Wear protective eyeglasses or chemical safety goggles, eye- and face-protection regulations. Contact lenses are not eye protective devices. Appropriate eye protection must be worn instead of, or in conjunction with contact lenses.
Skin/Hand protection:
Wear chemically protective gloves, boots, aprons, and gauntlets to prevent skin contact.
Respiratory protection:
Seek professional advice prior to respirator selection and use. Select respirator based on its suitability to provide adequate worker protection for given working conditions, level of airborne contamination, and presence of sufficient oxygen. For emergency or non-routine operations (cleaning spills, reactor vessels, or storage tanks), wear an SCBA. Warning! Air-purifying respirators do not protect workers in oxygendeficient atmospheres.
Thermal Hazards:
Thiourea dioxide may emit toxic fumes of carbon monoxide, carbon dioxide, nitrogen oxides and sulfur oxides when heated to decomposition.
Environmental exposure controls:
Follow instructions as given above.

Stability and reactivity

1. Reactivity
The product is reactive with the incompatible materials (please refer to point 5 "incompatible materials")
2. Chemical stability
Thiourea Dioxide may decompose on lengthy exposure to high temperature and humidity. Avoid heat, humidity and exposure to incompatibles.
3. Possibility of hazardous reactions
Hazardous polymerization cannot occur.
4. Conditions to avoid
Product reacts with water. Take precautions to avoid contact with atmospheric moisture and incompatibilities.
5. Incompatible materials
Strong oxidizing agents (alkalis, chlorates, nitrates, permanganates, etc.)
6. Hazardous decomposition products
Thermal oxidative decomposition of Thiourea Dioxide can produce toxic fumes of carbon monoxide, carbon dioxide, hydrogen cyanide, nitrogen oxides and sulfur oxides.

Disposal considerations

Waste treatment methods
Dispose of contents/container in accordance with local/regional/national/international regulation. Contact your supplier or a licensed contractor for detailed recommendations.