Product Name

  • Name

    DODECAMETHYLPENTASILOXANE

  • EINECS 205-492-2
  • CAS No. 141-63-9
  • Article Data30
  • CAS DataBase
  • Density 0.893 g/cm3
  • Solubility 70.41ng/L at 23℃
  • Melting Point -81 °C(lit.)
  • Formula C12H36O4Si5
  • Boiling Point 284.387 °C at 760 mmHg
  • Molecular Weight 384.843
  • Flash Point 117.419 °C
  • Transport Information
  • Appearance clear colorless liquid
  • Safety 26-36
  • Risk Codes 36/37/38
  • Molecular Structure Molecular Structure of 141-63-9 (DODECAMETHYLPENTASILOXANE)
  • Hazard Symbols IrritantXi
  • Synonyms Pentasiloxane,dodecamethyl- (6CI,7CI,8CI,9CI);DC 200 Fluid 2;KF96L2CS;
  • PSA 36.92000
  • LogP 4.82800

Dodecamethylpentasiloxane Chemical Properties

Chemical Name: Dodecamethylpentasiloxane
IUPAC NAME: bis[[Dimethyl(trimethylsilyloxy)silyl]oxy]-dimethylsilane
CAS No.: 141-63-9
EINECS: 205-492-2
RTECS: SB0970000
Molecular Formula: C12H36O4Si5
Molecular Weight: 384.84 g/mol
Melting Point: -81 °C(lit.)
Density: 0.893 g/cm3 
Flash Point: 117.4 °C
Boiling Point: 284.4 °C at 760 mmHg
Following is the structure of Dodecamethylpentasiloxane (141-63-9):


Product Categories about Dodecamethylpentasiloxane (141-63-9) are Organics ; Organometallic Reagents ; Organosilicon ; Siloxanes
The chemical synonymous of Dodecamethylpentasiloxane (141-63-9) are 1,1,1,3,3,5,5,7,7,9,9,9-Dodecamethylpentasiloxane ; Dodecamethyl-pentasiloxan ; Pentasiloxane, dodecamethyl- ; Dodecamethylpentasiloxane ; Dodecamethyl-2,4,6,8-tetraoxa-1,3,5,7,9-pentasilanonane ; Dodecamethylnonanepentasiloxane ; Penta(DImethylsiloxane) ; Dodecamethylpentasiloxane,97%

Dodecamethylpentasiloxane Toxicity Data With Reference

1.    

orl-gpg LDLo:50 g/kg

     JIDHAN    Journal of Industrial Hygiene. 30 (1948),332.

Dodecamethylpentasiloxane Consensus Reports

Reported in EPA TSCA Inventory.

Dodecamethylpentasiloxane Safety Profile

Slightly toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating vapors.
Hazard Codes:
Xi: Irritant
Risk Statements about Dodecamethylpentasiloxane (141-63-9):
R36/37/38 Irritating to eyes, respiratory system and skin.
Safety Statements about Dodecamethylpentasiloxane (141-63-9):
S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S37/39 Wear suitable gloves and eye/face protection. 
Attention:
1. Storage: Store in a cool, dry place. Store in a tightly closed container. Store under nitrogen.
2. Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Use only in a chemical fume hood.

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