Reaction mass of decamethyltetrasiloxane and dodecamethylpentasiloxane and hexamethyldisiloxane and octamethyltrisiloxane and tetradecamethylhexasiloxane

Guidance on Safe Use

First-aid measures

General advice : Move out of dangerous area. Show this safety data sheet to the doctor in attendance. Do not leave the victim unattended.

If inhaled : If unconscious place in recovery position and seek medical advice. If symptoms persist, call a physician.

In case of skin contact : If skin irritation persists, call a physician. If on skin, rinse well with water. If on clothes, remove clothes.

In case of eye contact : Immediately flush eye(s) with plenty of water. Remove contact lenses. Protect unharmed eye. Keep eye wide open while rinsing. If eye irritation persists, consult a specialist.

If swallowed : Keep respiratory tract clear. Do not give milk or alcoholic beverages. Never give anything by mouth to an unconscious person. If symptoms persist, call a physician.

Fire-fighting measures

Suitable extinguishing media :

Alcohol-resistant foam

Carbon dioxide (CO2)

Dry chemical

Unsuitable extinguishing media:

High volume water jet

Specific hazards during fire fighting :

Do not allow run-off from fire fighting to enter drains or water courses

Special protective equipment for fire-fighters:

Wear self contained breathing apparatus for fire fighting if necessary.

Further information :

Collect contaminated fire extinguishing water separately. This must not be discharged into drains.

Fire residues and contaminated fire extinguishing water must be disposed of in accordance with local regulations.

For safety reasons in case of fire, cans should be stored separately in closed containments.

Use a water spray to cool fully closed containers.

Accidental release measures

Personal precautions:

Use personal protective equipment.

Ensure adequate ventilation.

Remove all sources of ignition.

Evacuate personnel to safe areas.

Beware of vapours accumulating to form explosive

concentrations. Vapours can accumulate in low areas.

Environmental precautions:

Prevent product from entering drains.

Prevent further leakage or spillage if safe to do so.

If the product contaminates rivers and lakes or drains inform

respective authorities.

Methods for cleaning up:

Contain spillage, and then collect with non-combustible

absorbent material, (e.g. sand, earth, diatomaceous earth,

vermiculite) and place in container for disposal according to

local / national regulations.

Handling and storage

Advice on safe handling:

Avoid formation of aerosol.

Do not breathe vapours/dust.

Avoid exposure - obtain special instructions before use.

Avoid contact with skin and eyes.

For personal protection see section 8.

Smoking, eating and drinking should be prohibited in the

application area.

Take precautionary measures against static discharges.

Provide sufficient air exchange and/or exhaust in work rooms.

Open drum carefully as content may be under pressure.

Dispose of rinse water in accordance with local and national

regulations.

Advice on protection against fire and explosion:

Do not spray on a naked flame or any other incandescent material.

Take necessary action to avoid static electricity discharge

(which might cause ignition of organic vapours).

Use only explosion-proof equipment.

Keep away from open flames, hot surfaces and sources of ignition.

Requirements for storage areas and containers:

No smoking.

Keep container tightly closed in a dry and well-ventilated place.

Containers which are opened must be carefully resealed and

kept upright to prevent leakage.

Observe label precautions.

Electrical installations / working materials must comply with

the technological safety standards.

Transport information

Land transport (UN RTDG/ADR/RID)

UN number:

Class: 3
Packaging group: II
UN number: 1993
ADR/RID-Labels: 3
Description of the goods: FLAMMABLE LIQUID, N.O.S. (Siloxanes)

Shipping

SpecialProvisions

Shipping

Remarks

Marine transport (UN RTDG/IMDG)

UN number:

IMDG:
Class: 3
Packaging group: II
UN number: 1993
Labels: 3
EmS: F-E S-E
Description of the goods: FLAMMABLE LIQUID, N.O.S. (Siloxanes)
Marine pollutant no

Shipping

Remarks

Air transport (UN RTDG/ICAO/IATA)

UN number:

IATA-DGR :
Class: 3
Packaging group: II
UN/ID No.: UN 1993
Labels: 3
Description of the goods: Flammable liquid, n.o.s. (Siloxanes)

Shipping

Remarks

SpecialProvisions

Exposure controls / personal protection

Respiratory protection : In the case of vapour formation use a respirator with an

approved filter.

Hand protection : PVC or other plastic material gloves

Break through time: 120 min

: The suitability for a specific workplace should be discussed

with the producers of the protective gloves.

Eye protection : Eye wash bottle with pure water

Tightly fitting safety goggles

Wear face-shield and protective suit for abnormal processing

problems.

Skin and body protection : impervious clothing

Choose body protection according to the amount and

concentration of the dangerous substance at the work place.

Hygiene measures : When using do not eat or drink.

When using do not smoke.

Wash hands before breaks and at the end of workday.

General advice : Prevent product from entering drains.

Prevent further leakage or spillage if safe to do so.

If the product contaminates rivers and lakes or drains inform

respective authorities.

Production and use of the intermediate exclusively take place in closed stirrer vessels, which during reaction are superposed by nitrogen, in batch operation. Most of the raw materials are dosed from subterranean tanks through pipes to the production vessels. Bulk raw materials are pumped with suitable pumps to the production vessels. In areas where raw materials are handled in open containers, drums or pails, local exhaust ventilation is installed and used. The intermediate is transferred through pipes to the packaging stations.

All processes related to production, use, transfer within the pipework of the production/use facilities and packaging are controlled by a fully automated process control system which itself is controlled by properly trained staff. Each process step is double-checked by both the computer system and a human operator in the control room.

The drumming/packaging stations are fully automated as well and controlled by a human operator. Emerging exhaust, if any, is locally evacuated. Vapors emerging from any process during manufacturing, filling into drums and other containers, storage and use of the intermediate are locally evacuated and treated by either thermal incineration at temperatures above 850 °C or they are burned catalytically.

The system for treating emerging process gases and vapors is designed for highly volatile organic solvents (VOC) which are also used in registrant's production and use sites. Those VOCs are likely to become airborne during production. Therefore, the risk management measures applied are adjusted to cope with those VOCs. Since the intermediate has a much lower volatility, the risk management measures are highly over-dimensioned with respect to their low volatility. The low volatility of the intermediate is determined by its relatively high molecular weight.

No part of the production equipment is connected to the local wastewater system. No wastewater is generated in any process related to the intermediate. There are generally no emissions into the local sewage water system or into any other water system, e.g. draining rainwater etc. Due to the thermal treatment of process gases and vapors, airborne emissions from registrant’s production plants can be neglected.

It is important to note that no manual handling whatsoever occurs during routine operations in all production and use processes of the intermediate. Synthesis of the intermediate takes place in solution, i.e. the intermediate does not exist in its pure form. All operations are carried out in the closed equipment, i.e. reaction vessels, storage tanks and the associated pipework. In the unlikely event of spillage during  production and use processes due to a malfunction of the automatic system, the human operator dealing with the situation is protected by chemical resistant gloves or respiratory protection equipment, if needed. Those PPE are able to cope with the severe hazard of the solvents used elsewhere in the production and use processes and are highly over-dimensioned with respect to the non volatile intermediate.

Detailed documentation acc. to art. 18 is available upon request by authorities from registrant.

Stability and reactivity

No decomposition if stored and applied as directed.

Vapours may form explosive mixture with air.

Conditions to avoid: Heat, flames and sparks.

Disposal considerations

Product : The product should not be allowed to enter drains, water

courses or the soil.

Do not contaminate ponds, waterways or ditches with

chemical or used container.

Send to a licensed waste management company.

Contaminated packaging : Empty remaining contents.

Dispose of as unused product.

Do not re-use empty containers.

Do not burn, or use a cutting torch on, the empty drum.