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Dodecamethylcyclohexasiloxane

Item number691460
CAS540-97-6
FormulaC12H36O6Si6
Molecular weight444,92 g/mol
Quantity 1X100MG
storage conditions20 °C
CoA / MSDSRetrieve CoA
Retrieve MSDS
Dodecamethylcyclohexasiloxane

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Dodecamethylcyclohexasiloxane

Dodecamethylcyclohexasiloxane

691460
540-97-6

1X100MG

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Safety Data Sheetaccording to Regulation (EC) No 1907/2006 (REACH)
Classifications according to Regulation (EC) No 1272/2008.
Printdate 15.01.2025
IDENTIFICATION OF THE SUBSTANCE/MIXTURE AND OF THE COMPANY/UNDERTAKING
Product name:Dodecamethylcyclohexasiloxane
Catalog No.:691460
Relevant identified uses of the substance or mixtureIdentified: Laboratory chemical
uses: R&D
Uses advised against:HPC Standards GmbH
Am Wieseneck 7

04451 Cunnersdorf
Deutschland


Tel. +49 34291 3372-36
Fax. +49 34291 3372-39
contact@hpc-standards.com
Emergency telephone numberHPC Standards Tel. +49 34291 3372-36
This number is only available during office hours.
HAZARDS IDENTIFICATION2.1 Classification of the substance or mixture
Not a hazardous substance or mixture according to Regulation (EC) No 1272/2008.
Label elements
Pictogram
2.2 Label elements
Not a hazardous substance or mixture according to Regulation (EC) No 1272/2008.
2.3 Other hazards
This substance/mixture contains components considered to be either persistent,
bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB).
COMPOSITION/INFORMATION ON INGREDIENTS3.1 Substances
Synonyms : 2,2,4,4,6,6,8,8,10,10,12,12-Dodecamethylcyclohexasiloxane
Formula : C12H36O6Si6
Molecular weight : 444,92 g/mol
CAS-No. : 540-97-6
EC-No. : 208-762-8
Component Classification
2,2,4,4,6,6,8,8,10,10,12,12-Dodecamethylcyclohexasiloxane Included in the
Candidate List of Substances of Very High Concern (SVHC) according to Regulation (EC) No. 1907/2006 (REACH)
CAS-No. 540-97-6
EC-No. 208-762-8
FormulaC12H36O6Si6
Molecular Weight (g/mol)444.92
CAS-No.540-97-6
FIRST AID MEASURES4.1 Description of first-aid measures
If inhaled
After inhalation: fresh air.
In case of skin contact
In case of skin contact: Take off immediately all contaminated clothing. Rinse skin with
water/ shower.
In case of eye contact
After eye contact: rinse out with plenty of water. Remove contact lenses.
If swallowed
After swallowing: make victim drink water (two glasses at most). Consult doctor if feeling
unwell.
4.2 Most important symptoms and effects, both acute and delayed
The most important known symptoms and effects are described in the labeling (see section
2.2) and/or in section 11
4.3 Indication of any immediate medical attention and special treatment needed
No data available
FIRE-FIGHTING MEASURES5.1 Extinguishing media
Suitable extinguishing media
Foam Carbon dioxide (CO2) Dry powder
Unsuitable extinguishing media
For this substance/mixture no limitations of extinguishing agents are given.
5.2 Special hazards arising from the substance or mixture
Carbon oxides
silicon oxides
Combustible.
Vapors are heavier than air and may spread along floors.
Forms explosive mixtures with air on intense heating.
Development of hazardous combustion gases or vapours possible in the event of fire.
5.3 Advice for firefighters
In the event of fire, wear self-contained breathing apparatus.
5.4 Further information
Remove container from danger zone and cool with water. Suppress (knock down)
gases/vapors/mists with a water spray jet. Prevent fire extinguishing water from
contaminating surface water or the ground water system.
ACCIDENTAL RELEASE MEASURES6.1 Personal precautions, protective equipment and emergency procedures
Advice for non-emergency personnel: Do not breathe vapors, aerosols. Keep away from
heat and sources of ignition. Evacuate the danger area, observe emergency procedures,
consult an expert.
For personal protection see section 8.
6.2 Environmental precautions
Do not let product enter drains.
6.3 Methods and materials for containment and cleaning up
Cover drains. Collect, bind, and pump off spills. Observe possible material restrictions
(see sections 7 and 10). Take up with liquid-absorbent material
Dispose of properly. Clean up affected area.
6.4 Reference to other sections
For disposal see section 13.
HANDLING AND STORAGE7.1 Precautions for safe handling
Advice on protection against fire and explosion
Keep away from open flames, hot surfaces and sources of ignition.Take precautionary
measures against static discharge.
Hygiene measures
Change contaminated clothing. Wash hands after working with substance.
For precautions see section 2.2.
7.2 Conditions for safe storage, including any incompatibilities
Storage conditions
Tightly closed.
Storage class
Storage class (TRGS 510): 10: Combustible liquids
7.3 Specific end use(s)
Apart from the uses mentioned in section 1.2 no other specific uses are stipulated
EXPOSURE CONTROLS/PERSONAL PROTECTION8.1 Control parameters
Ingredients with workplace control parameters
8.2 Exposure controls
Personal protective equipment
Eye/face protection
Use equipment for eye protection tested and approved under appropriate
government standards such as NIOSH (US) or EN 166(EU). Safety glasses
Skin protection
not required
Respiratory protection
Not required; except in case of aerosol formation.
Control of environmental exposure
Do not let product enter drains.
PHYSICAL AND CHEMICAL PROPERTIES9.1 Information on basic physical and chemical properties
a) Physical state liquid
b) Color colorless
c) Odor No data available
d) Melting
point/freezing point
Melting point/range: -3 °C
e) Initial boiling point
and boiling range
128 °C at 20 hPa - lit.
f) Flammability (solid,
gas)
No data available
g) Upper/lower
flammability or
explosive limits
Upper explosion limit: 17,22 %(V) at 758 - 772 hPa
Lower explosion limit: 0,43 %(V) at 1011 - 1029 hPa
h) Flash point 91 °C - closed cup - ASTM D 93
i) Autoignition
temperature
368 - 371 °C
j) Decomposition
temperature
No data available
k) pH No data available
l) Viscosity Viscosity, kinematic: No data available
Viscosity, dynamic: No data available
m) Water solubility 0,00001 g/l - insoluble
n) Partition coefficient: log Pow: 8,87 at 23,6 °C
n-octanol/water
o) Vapor pressure 0,046 hPa at 25 °C
p) Density 0,959 g/cm3
Relative density No data available
q) Relative vapor
density
No data available
r) Particle
characteristics
No data available
s) Explosive properties No data available
t) Oxidizing properties none
9.2 Other safety information
No data available
STABILITY AND REACTIVITY10.1 Reactivity
Forms explosive mixtures with air on intense heating.
A range from approx. 15 Kelvin below the flash point is to be rated as critical.
10.2 Chemical stability
The product is chemically stable under standard ambient conditions (room temperature) .
10.3 Possibility of hazardous reactions
No data available
10.4 Conditions to avoid
Strong heating.
10.5 Incompatible materials
Strong oxidizing agents
10.6 Hazardous decomposition products
In the event of fire: see section 5
TOXICOLOGICAL INFORMATION11.1 Information on toxicological effects
Acute toxicity
LD50 Oral - Rat - male and female - > 2.000 mg/kg
(OECD Test Guideline 423)
Inhalation: No data available
Dermal: No data available
Skin corrosion/irritation
Skin - Rabbit
Result: No skin irritation - 4 h
(OECD Test Guideline 404)
Serious eye damage/eye irritation
Eyes - Rabbit
Result: No eye irritation
(OECD Test Guideline 405)
Respiratory or skin sensitization
Maximization Test - Guinea pig
Result: negative
(OECD Test Guideline 406)
Germ cell mutagenicity
Test system: Salmonella typhimurium
Metabolic activation: with and without metabolic activation
Method: OECD Test Guideline 471
Result: negative
Test Type: In vivo micronucleus test
Species: Mouse
Application Route: Intraperitoneal
Method: OECD Test Guideline 474
Result: negative
Carcinogenicity
No data available
Reproductive toxicity
No data available
Specific target organ toxicity - single exposure
No data available
Specific target organ toxicity - repeated exposure
No data available
Aspiration hazard
No data available
11.2 Additional Information
Endocrine disrupting properties
Product:
Assessment : The substance/mixture does not contain
components considered to have endocrine
disrupting properties according to REACH Article
57(f) or Commission Delegated regulation (EU)
2017/2100 or Commission Regulation (EU)
2018/605 at levels of 0.1% or higher.
Repeated dose toxicity - Rat - females - Oral - 29 d - NOAEL (No observed adverse effect
level) - 1.000 mg/kg
Remarks: No significant adverse effects were reported
Repeated dose toxicity - Rat - male and female - inhalation (vapor)
To the best of our knowledge, the chemical, physical, and toxicological properties have not
been thoroughly investigated.
ECOLOGICAL INFORMATION12.1 Toxicity
Toxicity to algae - Pseudokirchneriella subcapitata (green algae) - >= 0,002 mg/l -
72 h
(OECD Test Guideline 201)
12.2 Persistence and degradability
Biodegradability aerobic - Exposure time 28 d
Result: 4,47 % - Not rapidly biodegradable
(OECD Test Guideline 310)
12.3 Bioaccumulative potential
Bioaccumulation Pimephales promelas (fathead minnow) - 49 d
(2,2,4,4,6,6,8,8,10,10,12,12-Dodecamethylcyclohexasiloxane)
Bioconcentration factor (BCF): 1.160
Elimination: yes
(OECD Test Guideline 305)
12.4 Mobility in soil
No data available
12.5 Results of PBT and vPvB assessment
This substance/mixture contains components considered to be either persistent,
bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB).
12.6 Endocrine disrupting properties
Product:
Assessment : The substance/mixture does not contain components
considered to have endocrine disrupting properties
according to REACH Article 57(f) or Commission
Delegated regulation (EU) 2017/2100 or Commission
Regulation (EU) 2018/605 at levels of 0.1% or higher.
12.7 Other adverse effects
No data available
DISPOSAL CONSIDERATIONS13.1 Waste treatment methods
No data available
TRANSPORT INFORMATION14.1 UN number
ADR/RID: - IMDG: - IATA: -
14.2 UN proper shipping name
ADR/RID: Not dangerous goods
IMDG: Not dangerous goods
IATA: Not dangerous goods
14.3 Transport hazard class(es)
ADR/RID: - IMDG: - IATA: -
14.4 Packaging group
ADR/RID: - IMDG: - IATA: -
14.5 Environmental hazards
ADR/RID: no IMDG Marine pollutant: no IATA: no
14.6 Special precautions for user
No data available
REGULATORY INFORMATION15.1 Safety, health and environmental regulations/legislation specific for the
substance or mixture
This material safety data sheet complies with the requirements of Regulation (EC) No.
1907/2006.
Authorizations and/or restrictions on use
REACH - Candidate List of Substances of Very
High Concern for Authorisation (Article 59).
: 2,2,4,4,6,6,8,8,10,10,12,12-
Dodecamethylcyclohexasiloxane
15.2 Chemical Safety Assessment
For this product a chemical safety assessment was not carried out
OTHER INFORMATIONThe 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 in this document is based on the present 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. For lab use only!