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Octamethylcyclotetrasiloxane

1.1

IDENTIFICATION OF THE SUBSTANCE/MIXTURE AND OF THE COMPANY/UNDERTAKING

Product identifiers

Product name

Product Number

Brand

Index-No.

CAS-No.

Octamethylcyclotetrasiloxane

235695

Anonymous

014-018-00-1

556-67-2

1.2

Relevant identified uses of the substance or mixture and uses advised against

Identified uses

Laboratory chemicals, Manufacture of substances

2.1

2.2

HAZARDS IDENTIFICATION

Classification of the substance or mixture

Classification according to Regulation (EC) No 1272/2008 [EU-GHS/CLP]

Flammable liquids (Category 3)

Reproductive toxicity (Category 2)

Chronic aquatic toxicity (Category 4)

Classification according to EU Directives 67/548/EEC or 1999/45/EC

Possible risk of impaired fertility. May cause long-term adverse effects in the aquatic environment.

Label elements

Labelling according Regulation (EC) No 1272/2008 [CLP]

Pictogram

Signal word

Hazard statement(s)

H226

H361f

H413

Precautionary statement(s)

P281

Supplemental Hazard

Statements

Warning

Flammable liquid and vapour.

Suspected of damaging fertility.

May cause long lasting harmful effects to aquatic life.

Use personal protective equipment as required.

none

According to European Directive 67/548/EEC as amended.

Hazard symbol(s)

R-phrase(s)

R53

R62

S-phrase(s)

S36/37

S46

S51

S61

May cause long-term adverse effects in the aquatic environment.

Possible risk of impaired fertility.

Wear suitable protective clothing and gloves.

If swallowed, seek medical advice immediately and show this container or

label.

Use only in well-ventilated areas.

Avoid release to the environment. Refer to special instructions/ Safety

data sheets.

2.3

3.1

Other hazards - none

COMPOSITION/INFORMATION ON INGREDIENTS

Substances

Formula

Molecular Weight

Component

C8H24O4Si4

296,62 g/mol

Concentration

Octamethylcyclotetrasiloxane

CAS-No.

EC-No.

Index-No.

556-67-2

209-136-7

014-018-00-1

4.1

4.2

4.3

5.1

FIRST AID MEASURES

Description of first aid measures

General advice

Consult a physician. Show this safety data sheet to the doctor in attendance.

If inhaled

If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.

In case of skin contact

Wash off with soap and plenty of water. Consult a physician.

In case of eye contact

Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.

If swallowed

Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with

water. Consult a physician.

Most important symptoms and effects, both acute and delayed

To the best of our knowledge, the chemical, physical, and toxicological properties have not been

thoroughly investigated.

Indication of any immediate medical attention and special treatment needed

no data available

FIREFIGHTING MEASURES

Extinguishing media

Suitable extinguishing media

Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.

5.2

5.3

5.4

6.1

6.2

6.3

6.4

7.1

7.2

7.3

8.1

8.2

Special hazards arising from the substance or mixture

Carbon oxides, silicon oxides

Advice for firefighters

Wear self contained breathing apparatus for fire fighting if necessary.

Further information

Use water spray to cool unopened containers.

ACCIDENTAL RELEASE MEASURES

Personal precautions, protective equipment and emergency procedures

Use personal protective equipment. Avoid breathing vapors, mist or gas. 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 further leakage or spillage if safe to do so. Do not let product enter drains.

Methods and materials for containment and cleaning up

Contain spillage, and then collect with an electrically protected vacuum cleaner or by wet-brushing and

place in container for disposal according to local regulations (see section 13).

Reference to other sections

For disposal see section 13.

HANDLING AND STORAGE

Precautions for safe handling

Avoid contact with skin and eyes. Avoid inhalation of vapour or mist.

Keep away from sources of ignition - No smoking.Take measures to prevent the build up of electrostatic

charge.

Conditions for safe storage, including any incompatibilities

Store in cool place. 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.

Specific end uses

no data available

EXPOSURE CONTROLS/PERSONAL PROTECTION

Control parameters

Components with workplace control parameters

Exposure controls

Appropriate engineering controls

Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and

at the end of workday.

Personal protective equipment

Eye/face protection

Face shield and safety glasses Use equipment for eye protection tested and approved under

appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection

Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique

(without touching glove's outer surface) to avoid skin contact with this product. Dispose of

contaminated gloves after use in accordance with applicable laws and good laboratory practices.

Wash and dry hands.

The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and

the standard EN 374 derived from it.

Immersion protection

Material: Nitrile rubber

Minimum layer thickness: 0,4 mm

Break through time: > 480 min

Material tested:Camatril? (Anonymous Z677442, Size M)

Splash protection

Material: Nitrile rubber

Minimum layer thickness: 0,11 mm

Break through time: > 30 min

Material tested:Dermatril? (Anonymous Z677272, Size M)

data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 873000, e-mail sales@kcl.de,

test method: EN374

If used in solution, or mixed with other substances, and under conditions which differ from EN 374,

contact the supplier of the CE approved gloves. This recommendation is advisory only and must

be evaluated by an Industrial Hygienist familiar with the specific situation of anticipated use by our

customers. It should not be construed as offering an approval for any specific use scenario.

Body Protection

impervious clothing, Flame retardant antistatic protective clothing, The type of protective

equipment must be selected according to the concentration and amount of the dangerous

substance at the specific workplace.

Respiratory protection

Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator

with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup

to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air

respirator. Use respirators and components tested and approved under appropriate government

standards such as NIOSH (US) or CEN (EU).

9.1

PHYSICAL AND CHEMICAL PROPERTIES

Information on basic physical and chemical properties

Appearance

Odour

Odour Threshold

Melting point/freezing

point

Initial boiling point and

boiling range

Flash point

Evaporation rate

Form: liquid

Colour: colourless

no data available

Melting point/range: 17 - 18 °C - lit.

175 - 176 °C - lit.

56 °C - closed cup

no data available

Flammability (solid, gas) no data available

Upper/lower

flammability or

explosive limits

Vapour pressure

Vapour density

no data available

10,24 - (Air = 1.0)

m) Relative density

0,956 g/mL at 25 °C

Water solubility

Partition coefficient: n-

octanol/water

Autoignition

temperature

no data available

Decomposition

temperature

Viscosity

Explosive properties

Oxidizing properties

no data available

9.2

10.

10.1

10.2

10.3

10.4

10.5

10.6

11.

11.1

Other safety information

no data available

STABILITY AND REACTIVITY

Reactivity

no data available

Chemical stability

no data available

Possibility of hazardous reactions

no data available

Conditions to avoid

Heat, flames and sparks.

Incompatible materials

Strong oxidizing agents, acids, Bases

Hazardous decomposition products

Other decomposition products - no data available

TOXICOLOGICAL INFORMATION

Information on toxicological effects

Acute toxicity

LD50 Oral - rat - > 2.000 mg/kg

LC50 Inhalation - rat - 4 h - 36.000 mg/m3

Remarks: Behavioral:Excitement. Lungs, Thorax, or Respiration:Dyspnea. Skin and Appendages: Other:

Hair.

LD50 Dermal - rabbit - > 4.640 mg/kg

Skin corrosion/irritation

Skin - rabbit - Mild skin irritation - 24 h

Serious eye damage/eye irritation

Eyes - rabbit - Mild eye irritation - 24 h

Respiratory or skin sensitization

no data available

Germ cell mutagenicity

no data available

Carcinogenicity

IARC:

No component of this product present at levels greater than or equal to 0.1% is identified as

probable, possible or confirmed human carcinogen by IARC.

Reproductive toxicity

Suspected human reproductive toxicant

Reproductive toxicity - rat - Inhalation

Effects on Newborn: Live birth index (# fetuses per litter; measured after birth).

Overexposure may cause reproductive disorder(s) based on tests with laboratory animals.

Specific target organ toxicity - single exposure

no data available

Specific target organ toxicity - repeated exposure

no data available

Aspiration hazard

no data available

Potential health effects

Inhalation

Ingestion

Skin

Eyes

May be harmful if inhaled. May cause respiratory tract irritation.

May be harmful if swallowed.

May be harmful if absorbed through skin. May cause skin irritation.

Causes eye irritation.

Signs and Symptoms of Exposure

To the best of our knowledge, the chemical, physical, and toxicological properties have not been

thoroughly investigated.

Additional Information

RTECS: GZ4397000

12.

12.1

ECOLOGICAL INFORMATION

Toxicity

Toxicity to fish

LC50 - Leuciscus idus (Golden orfe) - 200,0 mg/l - 96,0 h

12.2

12.3

Persistence and degradability

Bioaccumulative potential

Bioaccumulation

Pimephales promelas (fathead minnow) - -0,160 μg/l

Bioconcentration factor (BCF): 12.400

Pimephales promelas (fathead minnow) - 28 d -0,160 μg/l

Bioconcentration factor (BCF): 14.261

12.4

12.5

12.6

13.

13.1

14.

14.1

Mobility in soil

no data available

Results of PBT and vPvB assessment

no data available

Other adverse effects

DISPOSAL CONSIDERATIONS

Waste treatment methods

Product

Burn in a chemical incinerator equipped with an afterburner and scrubber but exert extra care in igniting

as this material is highly flammable. Offer surplus and non-recyclable solutions to a licensed disposal

company.

Contaminated packaging

Dispose of as unused product.

TRANSPORT INFORMATION

UN number

14.2

ADR/RID: 1993

UN proper shipping name

IMDG: 1993

IATA: 1993

ADR/RID:

IMDG:

IATA:

FLAMMABLE LIQUID, N.O.S. (Octamethylcyclotetrasiloxane)

Flammable liquid, n.o.s. (Octamethylcyclotetrasiloxane)

14.3

Transport hazard class(es)

ADR/RID: 3

IMDG: 3

IATA: 3

14.4

Packaging group

14.5

14.6

15.

ADR/RID: III

Environmental hazards

ADR/RID: no

Special precautions for user

no data available

REGULATORY INFORMATION

IMDG: III

IMDG Marine pollutant: no

IATA: III

IATA: no

This safety datasheet complies with the requirements of Regulation (EC) No. 1907/2006.

15.1

15.2

16.

Safety, health and environmental regulations/legislation specific for the substance or mixture

no data available

Chemical Safety Assessment

no data available

OTHER INFORMATION

Further information

The above information is believed to be correct but does not purport to be all inclusive and
shall be used only as a guide. The information this document is based on the resent state
of our knowledge and is applicable to the product with regard to appropriate safety precautions.
It does not represent any guarantee of the properties of the product. Lookchem shall not be
held liable for any damage resulting from handling or from contact with the above product.
See reverse side of invoice or packing slip for additional terms and conditions of sale.

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