6H-Purine-6-thione, 1,2,3,9-tetrahydro-, hydrate (1:1)

Guidance on Safe Use

First-aid measures

· General information

Personal protection for the First Aider.

Remove any clothing soiled by the product.

Symptoms of poisoning may even occur after several hours; therefore medical observation for at least 48 hours after the accident.

· After inhalation

Take affected persons into the open air and position comfortably

Supply fresh air. If required, provide artificial respiration. Keep patient warm.

With symptoms:

Call for medical help.

In case of unconsciousness bring patient into stable side position for transport.

· After skin contact

Remove contaminated clothing.

Wash with water and rinse thoroughly. Or better wash with water and soap and rinse thoroughly.

If skin irritation continues, consult a doctor.

· After eye contact

Rinse opened eye for several minutes under running water. If symptoms persist, consult Oculist.

· After swallowing

Rinse out mouth and then drink plenty of water.

Do not induce vomiting.

Call for medical help.

A vomiting person on the side, lying on the back, turn.

If vomiting, hold the head of the vomiting person low with the body in a prone position.

· Information for doctor The toxicological properties of this material have not bean fully investigated.

· The following symptoms may occur:

Irritations after contact with eyes, skin and mucous membrane.

After inhalation of dust:

Irritating to respiratory tract.

Coughing

Breathing difficulty (dyspnea)

After swallowing:

Gastric or intestinal trouble

Nausea

Vomiting

A description of possible other symptoms is not present at the moment.

· Danger

Slightly irritation on eyes skin and respiratory tract.

Inhalation of the dust should be avoided as even inert dusts may impair respiratory organ functions.

May cause blood effects.

May cause liver damage.

Damage of the bone marrow.

Damage of pancreas

There are at present no indications to further acute dangers for the health.

Further health dangers cannot be excluded however.

· Treatment

Elemental assistance.

Decontamination.

Treat symptomatically and supportively.

Fire-fighting measures

· Suitable extinguishing agents

CO2, extinguishing powder or water fog. Fight larger fires with water fog or alcohol-resistant foam.

· For safety reasons unsuitable extinguishing agents Water with a full water jet.

· Special hazards caused by the material, its products of combustion or flue gases:

Formation of toxic and corrosive gases during heating or in case of fire.

Can be released in case of fire:

Carbon monoxide and carbon dioxide.

Nitrogen oxides (NOx)

Sulfur oxides (SOx).

Dust explosion hazard!

· Protective equipment:

Wear self-contained breathing apparatus.

Wear full protective suit.

· Additional information

Collect contaminated fire fighting water separately. It must not enter drains.

Damp down gases/fumes/haze with water spray jet.

Accidental release measures

· Person-related safety precautions:

Wear protective equipment. Keep unprotected persons away.

Use breathing protection against the effects of fumes/dust/aerosol.

Keep away from ignition sources

Avoid causing dust.

Ensure adequate ventilation

Bring persons out of danger.

· Measures for environmental protection:

Do not allow to enter sewing systems, water bodies, groundwater or soil.

Inform respective authorities in case product reaches water, sewage system or soil.

· Measures for cleaning/collecting:

Avoid causing dust.

Ensure adequate ventilation.

Collect mechanically.

Clean up affected area.

May be recycled or disposed of in appropiate containers

Handling and storage

HANDLING

Information for safe handling:

Keep containers tightly sealed.

Prevent formation of dust.

Ensure good ventilation/exhaustion at the workplace.

Information about protection against explosions and fires:

Substance/product is flammable.

Dust can combine with air to form an explosive mixture.

Fire fighting equipment must be available.

Protect from heat.

Avoid deposition of dust.

Keep ignition sources away - Do not smoke.

Protect against electrostatic charges.

STORAGE

Requirements to be met by storerooms and containers:

Store in cool location.

Store in original container if possible.

Provide floor trough without outlet.

Information about storage in one common storage facility:

Keep away from foodstuffs.

Do not store together with materials/products which can form dangerous chemical reactions.

See point 10: stability and reactivity.

Further information about storage conditions:

Store in cool, dry conditions in well sealed containers.

Protect from heat and direct sunlight.

Store container in a well ventilated position.

Store in a locked cabinet and out of the reach of children.

Recommended storage temperature: < +30°C

Transport information

Shipping

SpecialProvisions

Shipping

Remarks

Marine transport (UN RTDG/IMDG)

Shipping

Remarks

Shipping

Remarks

SpecialProvisions

Exposure controls / personal protection

· Components with critical values that require monitoring at the workplace: Not required.

· Additional information: The lists that were valid during the compilation were used as basis.

Personal protective equipment

· General protective and hygienic measures

Keep away from foodstuffs, beverages and food.

Instantly remove any soiled and impregnated garments.

Wash hands during breaks and at the end of the work.

Do not inhale dust / smoke / mist.

Avoid contact with the eyes and skin.

Do not eat, drink or smoke while working.

· Breathing equipment:

If used in closed systems or well-ventilated area breathing protection is not necessary.

In an emergency (e.g.: unintentional release of the substance) respiratory protection must be worn.

In case of brief exposure or low pollution use breathing filter apparatus. In case of intensive

or longer exposure use breathing apparatus that is independent of circulating air.

Filter P2 or filter P3.

· Protection of hands:

Chemical-protective gloves

The glove material has to be impermeable and resistant to the product/ the substance/ the preparation.

Check protective gloves prior to each use for their proper condition.

Selection of the glove material on consideration of the penetration times, rates of diffusion and the degradation

Preventive skin protection by use of skin-protecting agents is recommended.

· Material of gloves

No material can be recommended.

Experience says that polychloroprene, nitrile rubber, butylrubber, fluoro-caoutchouc, and polyvinyl chloride are suitable as glove materials for protection against undissolved solids.

The selection of the suitable gloves does not only depend on the material, but also on further marks of quality and varies from manufacturer to manufacturer.

ASK THE MANUFACTURER FOR SUITABLE MATERIAL.

· Penetration time of glove material

At the permeation time no data are present. The penetration of the glove material is impossible with dry and not gassing solids.

The exact break trough time has to be found out by the manufacturer of the protective gloves and has to be observed.

Not suitable are gloves made of the following materials: Strong gloves, Leather gloves

· Eye protection:

Safety glasses with side protection.

· Body protection:

Wear dust tight protective clothing.

Antistatic protective clothing.

Apron, boots or suitable chemical protection suit.

Protective clothing should be selected specifically for the working place, depending on concentration and quantity of the hazardous substances handled. The resistance of the protective clothing to chemicals should be ascertained with the respective supplier.

Stability and reactivity

· Conditions to be avoided:

No decomposition if used and stored according to specifications.

To avoid thermal decomposition do not overheat.

Flames, sparks, electrostatic charges

· Decomposition will begin at:

Release of crystalline water at: ~140 °C

Decomposition at: ~313 °C

· Materials to be avoided:

Acids

Bases

Alkali leyes

Oxidizing agents

· Dangerous reactions

The product is not capable of dust explosion in the form supplied; enrichment with fine dust causes

risk of dust explosion.

Reacts with strong acids.

Reacts with strong alkali (lyes).

Reacts with strong bases.

Reacts with strong oxidizing agents.

· Dangerous products of composition:

Danger of toxic pyrolysis products

Can be released in case of fire:

Carbon monoxide (CO) and carbon dioxide (CO₂)

Nitrogen oxides (NOx)

Sulphur oxides (SOx)

Disposal considerations

· Product:

· Recommendation

Must not be disposed of together with household garbage. Do not allow product to reach sewage system.

Must be specially treated under adherence to official regulations.

· European waste catalogue

A waste code in accordance with the European Waste Catalogue (EWC) may not be assigned to this product since it admits of a classification only when the consumer uses it for some purpose. In agreement with the waste code must be determined regional waste disposal authority or company.

· Uncleaned packagings:

Recommendation: Disposal must be made according to official regulations