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CAS RN: 556-67-2 | Product Number: O0142

Octamethylcyclotetrasiloxane


Purity: >98.0%(GC)
Synonyms:
  • Dimethylsiloxane Cyclic Tetramer
Documents:
25ML
$31.00
5   2   ≥40 
100ML
$73.00
1   1   16  
500ML
$160.00
4   1   ≥40 

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Product Number O0142
Purity / Analysis Method >98.0%(GC)
Molecular Formula / Molecular Weight C__8H__2__4O__4Si__4 = 296.62 
Physical State (20 deg.C) Liquid
Store Under Inert Gas Store under inert gas
Condition to Avoid Moisture Sensitive
CAS RN 556-67-2
Reaxys Registry Number 1787074
PubChem Substance ID 87574146
SDBS (AIST Spectral DB) 10371
Merck Index (14) 6747
MDL Number

MFCD00003269

Specifications
Appearance Colorless to Almost colorless clear liquid
Purity(GC) min. 98.0 %
Properties (reference)
Melting Point 18 °C
Boiling Point 175 °C
Flash point 54 °C
Specific Gravity (20/20) 0.96
Refractive Index 1.40
Solubility in water Insoluble
GHS
Pictogram Pictogram Pictogram Pictogram Pictogram
Signal Word Danger
Hazard Statements H311 : Toxic in contact with skin.
H302 : Harmful if swallowed.
H361 : Suspected of damaging fertility or the unborn child.
H410 : Very toxic to aquatic life with long lasting effects.
H226 : Flammable liquid and vapor.
Precautionary Statements P501 : Dispose of contents/ container to an approved waste disposal plant.
P273 : Avoid release to the environment.
P270 : Do not eat, drink or smoke when using this product.
P202 : Do not handle until all safety precautions have been read and understood.
P240 : Ground/bond container and receiving equipment.
P210 : Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P233 : Keep container tightly closed.
P201 : Obtain special instructions before use.
P243 : Take precautionary measures against static discharge.
P241 : Use explosion-proof electrical/ ventilating/ lighting/ equipment.
P242 : Use only non-sparking tools.
P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection.
P370 + P378 : In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish.
P391 : Collect spillage.
P308 + P313 : IF exposed or concerned: Get medical advice/ attention.
P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.
P362 : Take off contaminated clothing and wash before reuse.
P301 + P312 + P330 : IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell. Rinse mouth.
P403 + P235 : Store in a well-ventilated place. Keep cool.
P405 : Store locked up.
Related Laws:
RTECS# GZ4397000
Transport Information:
UN Number (DOT-AIR) UN1992
Class (DOT-AIR) 3/6.1
Packing Group (TCI-A) III
HS Number 2931.90.9010
PubMed Literature


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