2,4-diethyl-9H-thioxanthen-9-one

Guidance on Safe Use

First-aid measures

4.1. Description of first aid measures

General information:

Pay attention to self-protection.

In case of unwellness, call a physician. Show this safety data sheet to the physician.

After inhalation:

Remove affected person to fresh air. In case of unwellness, seek medical advice.

After skin contact:

Immediately wash with plenty of water and soap, and rinse thouroughly.If irritation persists, consult a physician.

After eye contact:

Rinse opened eye for several minutes under running water. If irritiation persists, consult an ophthalmologist.

After swallowing:

Thoroughly rinse mouth with water and let 1 - 2 glasses of water be drunken. Do not induce vomiting.

Call a physician.

If unconscious place in recovery position and call a physician immediately.

Never give anything by mouth to an unconscious person.

4.2. Most important symptoms and effects, both acute and delayed

No information available.

4.3. Indication of any immediate medical attention and special treatment needed

Treat symptomatically (decontamination, vital functions).

Fire-fighting measures

5.1. Extinguishing media

5.1.1 Suitable extinguishing media: Water spray, alcohol-resistant foam, dry powder, carbon dioxide (CO2).

Fight larger fires with water spray or alcohol-resistant foam.

Use fire extinguishing methods suitable to surrounding conditions.

5.1.2 Unsuitable extinguishing media which must not be uses for safety reasons: Strong water jet.

5.2. Special hazards arising from the substance or mixture

Substance is combustible. Risk of explosions of dust/air mixtures. On heating: increased fire hazard.

Hazardous decomposition products: Toxic gases/vapours, e.g. carbon monoxide (CO), carbon dioxide (CO2), sulphur

dioxide, smoke.

5.3. Advice for firefighters

Special protective equipment for fire fighters:

Full protective equipment. Wear self-contained breathing apparatus.

Contaminated water from fire hoses etc., must be prevented from draining into watercourses, sewers, or the ground

water. Sufficient measures must be taken to retain water used for extinguishing.

Ignition residues, contaminated water and soil must be disposed of in conformity with local regulations.

Accidental release measures

6.1. Personal precautions, protective equipment and emergency procedures

Wear personal protective equipment (gloves, protective clothing, goggles).

Remove all sources of ignition. Avoid dust formation. Do not breathe dust. Avoid contact with eyes, skin, and clothing.

Keep unprotected persons away.

6.2. Environmental precautions

Do not allow to enter into sewers / surface water or drains.

Do not allow to enter into soil.

6.3. Methods and material for containment and cleaning up

Dry product: mechanically take up (sweep together and shovel up) material.

Or soak up with approved explosion-proof industrial vacuum cleaner. Avoid dust formation.

Place in a suitable, correctly labelled, tightly sealed waste container for recycling or disposal.

In case of solutions:

Bunding of bigger quantities and pumping into suitable containers.

Minor quantities: soak up with inert absorbent (e.g. sand, kieselguhr).

Collect in closed and suitable containers for recycling or disposal.

Clean contaminated area thoroughly. Prevent runoff from entering drains or sewers.

6.4. Reference to other sections

Personal protective equipment: see Section 8; Disposal: see Section 13.

Handling and storage

7.1. Precautions for safe handling:

Keep container tightly closed. Keep away from sources of ignition - No smoking. (Dust may form explosive mixture with

air).

Take precautionary measures against static discharges.

Ensure good ventilation / exhaustion at the workplace.

Avoid formation of dust/vapours/aerosol.

Any deposit of dust which cannot be avoided must be regularly removed.

Do not breathe dust/vapours/aerosols.

Avoid contact with eyes, skin and clothing.

Make available sufficient washing facilities at the workplace. Provide eye shower.

In case of working with bigger quantities, provide emergency shower.

General hygienic measures:

Do not to eat, drink and smoke in work areas.

Wash hands thoroughly before breaks and after work.

Contaminated clothing should be cleaned by suction and not by blowing off or by brushing.

Separate storage of work clothes.

7.2. Conditions for safe storage, including any incompatibilities:

Store away from sources of ignition, heat and light sources, oxidising agents, and other incompatible substances (see

section 10.5.).

Protect from humid air and moisture.

Store away from pharmaceutical products, food, beverages and feedingstuff.

Keep the packing tightly closed and store in cool and dry area with good ventilation, and protected from light.

Recommended storage temperature: < 35 °C.

Storage class (TRGS 510): 11 (combustible solids).

7.3. Specific end uses(s):

Photoinitiator for UV curable printing inks and coatings (industrial and professional use).

Intermediate for organic syntheses.

Laboratory chemical.

(industrial and professional use only.

Transport information

Shipping

SpecialProvisions

Shipping

Remarks

Marine transport (UN RTDG/IMDG)

Shipping

Remarks

Shipping

Remarks

SpecialProvisions

Exposure controls / personal protection

8.1. Control parameters:

Components with occupational exposure limits requiring monitoring:

Austria (Grenzwerteverordnung 2011): No occupational exposure limit value established for CAS 82799-44-8.

Belgium: (BELGISCH STAATSBLAD — 14.03.2002 — Ed. 2 — MONITEUR BELGE): no occupational exposure limit value

established for CAS 82799-44-8.

France (Valeurs limits d'exposition professionelle aux agents chimiques en France, http://www.inrs.fr/ ):

no occupational exposure limit value established for CAS 82799-44-8.

Germany (TRGS 900, version dated 29.06.2015): no occupational exposure limit value established for CAS 82799-44-8.

General dust limit value: alveolar fraction: max. 1,25 mg/m3; inhalable fraction: 10 mg/m3.

Switzerland (SUVA 2012): no occupational exposure limit value established for CAS 82799-44-8.

United Kingdom (http://www.hse.gov.uk/coshh/): no occupational exposure limit value established for CAS 82799-44-8.

DNEL Workers: No data available.

DNEL General population: No data available.

PNEC: No data available.

8.2. Exposure controls

8.2.1. Appropriate engineering controls

Technical measures and appropriate working procedures have priority over the use of personal protective equipment.

See section 7.

8.2.2 Individual protection measures

Eye protection: Tightly sealed goggles (EN 166)

Protection of hands:

In case of long-term contact: protective gloves.

To avoid skin problems, reduce the wearing of gloves to the required minimum.

The protective gloves must comply with the specifications of EC-Directive 89/686/EEC and the corresponding norm EN

374 (in connection with DIN EN 420 and DIN EN 388).

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

Due to missing tests no recommendation to the glove material can be given for the product / the chemical mixture.

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

Glove material:

The selection of suitable gloves does not only depend on the material, but also on further quality characteristics and

varies from manufacturer to manufacturer.

Penetration time of glove material:

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

Body protection: protective clothing.

Protective clothing needs to be selected specifically for the workplace, depending on the concentrations and

quantities of the hazardous substances handled.

Respiratory protection:

Not necessary if exhaust ventilation at the workplace is working well.

Respiratory protection:is needed if technical suction / ventilation measures are not possible or not sufficient, and if

treshold limits are exceeded.

In case of short-term or low exposure: use filtering device. Respirator type: filter P1 or P2.

In case of long-term exposure or higher levels of exposure: wear self-contained breathing apparatus.

Observe the wear time limits according to GefStoffV in combination with the rules for using respiratory protection

apparatus (BGR 190).

The employer shall ensure that maintenance, cleaning and inspection of respiratory protective equipment is carried out

in accordance with the equipment manufacturer's instructions.

Attention: respiratory protection devices with air filters do not protect against oxygen deficiencies at the workplace. If

the concentration of oxygen in the workplace is less than 17%, wear self-contained breathing apparatus.

8.2.3 Environmental exposure controls

Emissions from ventilation or work process equipment should be checked to ensure they comply with the requirements

of environmental protection legislation. In some cases, fume scrubbers, filters or engineering modifications to the

process equipment will be necessary to reduce emissions to acceptable levels.

Stability and reactivity

10.1. Reactivity

No data available.

10.2. Chemical stability

Heat sensitive; light sensitive.

Stable under recommended conditions of storage and absence of incompatible materials / conditions to avoid.

10.3. Possibility of hazardous reactions

Risk of explosions of dust/air mixtures.

Danger of violent reactions / explosions with strong oxidizing agents.

10.4. Conditions to avoid

Static discharges, ignition sources, light, heat.

Do not overheat in order to avoid thermal decomposition.

Avoid dust formation. Avoid formation of aerosols.

10.5. Incompatible materials

Strong oxidising agents, strong reducing agents, strong acids, strongly alkaline substances.

10.6. Hazardous decomposition products

No data available.

Hazardous combustion products: see Section 5.

Disposal considerations

13.1. Waste treatment methods:

Disposal according to local regulations. This material may only be disposed of by a licensed waste disposal company.

Disposal: Incineration at a licensed installation, observing national and local legislation.

Do not dispose via sewage. Do not allow product to reach sewage system. Do not allow to enter into soil/subsoil.

Uncleaned packaging:

Recommendation: Disposal must be made according to official regulations.

European Waste Catalogue

The allocation of waste identity numbers/waste descriptions must be carried out according to the EWC,

specific to the industry and process.

Community provisions relating to waste:

1. Directive 2008/98/EC of the European Parliament and of the Council of 19 November 2008 on waste and repealing

certain Directives; Official Journal of the European Union, L 312 of 22.11.2008, page 3 - 30.

2. Directive 2006/12/EC of the European Parliament and of the Council of 5 April 2006 on waste,

Official Journal of the European Union, L 114 of 27.04.2006, page 9 – 21.

3. Regulation (EC) No 1013/2006 of the European Parliament and of the Council of 14 June 2006 on shipments of waste;

Official Journal of the European Union L 190, 12.7.2006, p. 1–98

4. Local official regulations.