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Guidance on Safe Use

Guidance on Safe Use

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Administrative data

First-aid measures

Description of necessary first-aid measures, Most important symptoms/effects, acute and delayed:
General advice:
Take off immediately all contaminated clothing.
Inhalation:
Move to fresh air. Oxygen or artificial respiration if needed. In case of persistent problems : Consult a physician.
Skin contact:
Wash immediately, abundantly and thoroughly with water.
Eye contact:
Wash immediately, abundantly and thoroughly with water. If irritation persists, consult an ophthalmologist.
Ingestion:
In case of problems : Consult a doctor

Fire-fighting measures

Extinguishing media:
Suitable extinguishing media: Foam, Dry chemical, Carbon dioxide (CO2), Water spray
Special hazards arising from the substance or mixture:
Flammable liquid (when hot).
Thermal decomposition giving toxic products:, Sulphur oxides
Advice for firefighters:
Special protective actions for fire-fighters:
Wear self-contained breathing apparatus and protective suit.

Accidental release measures

Personal precautions, protective equipment and emergency procedures:
Prohibit all sources of sparks and ignition - Do not smoke. Avoid contact with skin and eyes and inhalation of vapours. Use personal
protective equipment.
Environmental precautions:
Do not release into the environment. Do not let product enter drains. Dam up with sand or inert earth (do not use combustible materials).
Methods and materials for containment and cleaning up:
Recovery:
Pump into a labelled inert emergency tank. Absorb the remainder with an inert absorbent material. Shovel or sweep up. Shovel into suitable
container for disposal. After cleaning, flush away traces with water. Dilute with water. Recover waste water for processing later.
Elimination: See chapter 13

Handling and storage

Precautions for safe handling:
Technical measures/Precautions:
Storage and handling precautions applicable to products: Liquid. Flammable (when hot). With vapours explosive in air. Provide appropriate
exhaust ventilation at machinery. Provide showers, eye-baths.
Safe handling advice:
Keep well away from naked flames. Prohibit all sources of sparks and ignition - Do not smoke. Only use safety equipment. Avoid prolonged
contact with eyes, skin and clothing.
Hygiene measures:
When using do not eat, drink or smoke.
Wash hands after handling. Remove contaminated clothing and protective equipment before entering eating areas.
Conditions for safe storage, including any incompatibilities:
Keep tightly closed in a dry, cool and well-ventilated place. Store away from heat and ignition sources. Store in insulated containers. Keep
under nitrogen. Provide a catch-tank in a bunded area. Provide electrical earthing of equipment and electrical equipment usable in explosive
atmospheres.
Storage temperature: > 20 °C (to prevent crystallization).
Incompatible products:
Organic and mineral acids (sulphur, phosphorus) halides, Methylbromide, Sodium hydride, Zinc, Steel (in the presence of water), Strong acids
: perchloric acid, periodic acid, Strong oxidizing agents
Packaging material:
Recommended: Stainless steel, Joints : polyethylene, Rilsan ®, polytetrafluoroethylene (PTFE)
Specific use(s) (End Use): None.

Transport information

Land transport (ADR/RID)

UN number:
Not regulated
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Inland waterway transport (ADN(R))

UN number:
Not regulated
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Marine transport (IMDG)

UN number:
Not regulated
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Air transport ICAO/IATA

UN number:
Not regulated
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Exposure controls / personal protection

Exposure Limit Values
Dimethyl sulfoxide
Source ARKEMA
Value type TWA
Value 300 ppm
Remarks Value recommended by the "Exposure Limit Value Committee" of ARKEMA

Derived No Effect Level (DNEL):
End Use Workers
Inhalation 394 mg/m3 (LT, SE)
Skin contact 400 mg/kg bw/day (LT, SE)

End Use Consumers
Inhalation 70 mg/m3 (LT, SE)
Ingestion 100 mg/kg bw/day (LT, SE)
Skin contact 200 mg/kg bw/day (LT, SE)

LE : Local effects, SE : Systemic effecs, LT : Long term, ST : Short term

Predicted No Effect Concentration (PNEC):

PNEC Fresh water 17 mg/l
PNEC Marine water 1,7 mg/l
PNEC Sediment 13,4 mg/kg dw
PNEC Soil 3,02 mg/kg dw
PNEC Effects on waste water treatment plants 11 mg/l
PNEC Oral (Secondary Poisoning) 700 mg/kg food

EXPOSURE CONTROLS:
General protective measures: Ensure sufficient air exchange and/or exhaust in work areas
Personal protective equipment:
Respiratory protection: In case of insufficient ventilation, wear suitable respiratory equipment.
Low concentrations or short activity: Self contained Breathing Apparatus
High concentrations or prolonged activity: Self contained Breathing Apparatus
Hand protection: Gloves nitrile rubber Glove thickness: 0,75 mm
Eye/face protection: Safety glasses
Skin and body protection: At the workplace : Combination with delayed penetration
Intervention at incident: anti-acid suit
Environmental exposure controls:
See chapter 6

Stability and reactivity

Reactivity & Chemical stability:
The product is stable at ambient temperature
Hygroscopic product (strongly)
Stability of the solution decreases under the action of heat, light, and in the presence of impurities
Conditions to avoid:
Keep away from heat and sources of ignition. To avoid thermal decomposition, do not overheat.
Incompatible materials to avoid:
Organic and mineral acids (sulphur, phosphorus) halides, Methylbromide, Sodium hydride, Zinc, Steel (in the presence of water), Strong acids
: perchloric acid, periodic acid, Strong oxidizing agents
Thermal decomposition:
Decomposition temperature: > 190 °C
Hazardous decomposition products:
Thermal decomposition giving flammable and toxic products :, Sulphur oxides, Formaldehyde, Methylmercaptan
Thermal decomposition giving flammable and harmful products :, Dimethylsulphide
Product of hydrolysis :, Dimethyl sulfone

Disposal considerations

Waste treatment:
Disposal of product: Destroy the product by incineration (in accordance with local and national regulations). Destroy
absorbed product by incineration at an approved waste disposal site only In accordance with local and
national regulations.