3,4-dimethyl-1H-pyrazole

Guidance on Safe Use

First-aid measures

Description of first aid measures

First aid personnel should pay attention to their own safety. If the patient is likely to become

unconscious, place and transport in stable sideways position (recovery position). Immediately remove

contaminated clothing.

If inhaled:

Keep patient calm, remove to fresh air, seek medical attention. Immediately inhale corticosteroid dose

aerosol.

On skin contact:

Immediately wash thoroughly with plenty of water, apply sterile dressings, consult a skin specialist.

On contact with eyes:

Immediately wash affected eyes for at least 15 minutes under running water with eyelids held open,

consult an eye specialist.

On ingestion:

Immediately rinse mouth and then drink 200-300 ml of water, seek medical attention.

Most important symptoms and effects, both acute and delayed

Indication of any immediate medical attention and special treatment needed

Treatment: Treat according to symptoms (decontamination, vital functions), no known specific

antidote.

Fire-fighting measures

Extinguishing media

Suitable extinguishing media:

water spray, carbon dioxide, dry powder, alcohol-resistant foam

Special hazards arising from the substance or mixture

carbon monoxide, carbon dioxide, nitrogen oxides

The substances/groups of substances mentioned can be released in case of fire.

Advice for fire-fighters

Special protective equipment:

Wear self-contained breathing apparatus and chemical-protective clothing.

Further information:

In case of fire and/or explosion do not breathe fumes. Keep containers cool by spraying with water if

exposed to fire. Collect contaminated extinguishing water separately, do not allow to reach sewage or

effluent systems. Dispose of fire debris and contaminated extinguishing water in accordance with

official regulations.

Accidental release measures

Personal precautions, protective equipment and emergency procedures

Use personal protective clothing. Avoid contact with the skin, eyes and clothing. Remove

contaminated clothes, undergarments and shoes immediately.

Environmental precautions

Do not discharge into the subsoil/soil. Do not discharge into drains/surface waters/groundwater.

Methods and material for containment and cleaning up

For small amounts: Pick up with suitable absorbent material (e.g. sand, sawdust, general-purpose

binder, kieselguhr).

For large amounts: Dike spillage. Pump off product.

Cleaning operations should be carried out only while wearing breathing apparatus. Collect waste in

suitable containers, which can be labeled and sealed. Clean contaminated floors and objects

thoroughly with water and detergents, observing environmental regulations. Incinerate or take to a

special waste disposal site in accordance with local authority regulations.

Handling and storage

Precautions for safe handling

No special measures necessary if stored and handled correctly. Ensure thorough ventilation of stores

and work areas.

Protection against fire and explosion:

Prevent electrostatic charge - sources of ignition should be kept well clear - fire extinguishers should

be kept handy. Electrical devices must meet the specified temperature class.

Conditions for safe storage, including any incompatibilities

Segregate from foods and animal feeds.

Further information on storage conditions: Keep away from heat. Protect against moisture. Protect

from direct sunlight. Keep container tightly closed and in a cool place.

Storage stability:

Storage duration: 24 Months

Specific end use(s)

Transport information

Shipping

SpecialProvisions

Shipping

Remarks

Marine transport (UN RTDG/IMDG)

Shipping

Remarks

Shipping

Remarks

SpecialProvisions

Exposure controls / personal protection

Exposure controls

Personal protective equipment

Respiratory protection:

Wear respiratory protection if ventilation is inadequate. Suitable respiratory protection for higher

concentrations or long-term effect: Gas filter for gases/vapours of organic compounds (boiling point

>65 °C, e. g. EN 14387 Type A)

Hand protection:

Suitable chemical resistant safety gloves (EN 374) also with prolonged, direct contact

(Recommended: Protective index 6, corresponding > 480 minutes of permeation time according to EN

374): E.g. nitrile rubber (0.4 mm), chloroprene rubber (0.5 mm), butyl rubber (0.7 mm) and other

Eye protection:

Tightly fitting safety goggles (splash goggles) (e.g. EN 166)

Body protection:

Body protection must be chosen depending on activity and possible exposure, e.g. apron, protecting

boots, chemical-protection suit (according to EN 14605 in case of splashes or EN ISO 13982 in case of

dust).

General safety and hygiene measures

Handle in accordance with good industrial hygiene and safety practice. Avoid contact with the skin,

eyes and clothing. Wearing of closed work clothing is recommended. Avoid inhalation of vapour. Store

work clothing separately. No eating, drinking, smoking or tobacco use at the place of work. Hands

and/or face should be washed before breaks and at the end of the shift. Keep separated from food

stuffs and feed stocks.

Stability and reactivity

Reactivity

No hazardous reactions if stored and handled as prescribed/indicated.

Corrosion to metals: No data available.

Chemical stability

The product is stable if stored and handled as prescribed/indicated.

Possibility of hazardous reactions

Reacts with strong oxidizing agents.

Conditions to avoid

Incompatible materials

Substances to avoid:

strong oxidizing agents

Hazardous decomposition products

Hazardous decomposition products:

No hazardous decomposition products if stored and handled as prescribed/indicated.

Disposal considerations

Disposal Considerations

Waste treatment methods

Must be disposed of or incinerated in accordance with local regulations.

Contaminated packaging:

Contaminated packaging should be emptied as far as possible and disposed of in accordance with

official regulations after being thoroughly cleaned.