| Identification | More | [Name]
N-OCTADECYLTRICHLOROSILANE | [CAS]
112-04-9 | [Synonyms]
N-OCTADECYLTRICHLOROSILANE
OCTADECYLTRICHLOROSILANE
STEARYLTRICHLOROSILANE
TRICHLOROOCTADECYLSILANE
TRICHLOROSTEARYLSILANE
CO9750
Silane, octadecyltrichloro-
OCTADECYLTRICHLOROSILANE, 90+%
OCTADECYLTRICHLOROSILANE 97%
Silane, trichlorooctadecyl-
trichlorooctadecyl-silan
N-OCTADECYLTRICHLOROSILANE: 92% (5-10% BRANCHED C18-ISOMERS)
N-OCTADECYLTRICHLOROSILANE , CONT. 5-10% BRANCHED ISOMERS
N-OCTADECYLTRICHLOROSILANE: CONTAINS <3% C18 ISOMERS
n-Octadecyltrichlorosilane, 95%, cont. 5-10% branched isomers
Octodecyltrichlorosilane
n-Octadecyltrichlorosilane, tech. 85% | [EINECS(EC#)]
203-930-7 | [Molecular Formula]
C18H37Cl3Si | [MDL Number]
MFCD00000484 | [Molecular Weight]
387.93 | [MOL File]
112-04-9.mol |
| Chemical Properties | Back Directory | [Appearance]
Colorless clear liquid | [Melting point ]
22°C | [Boiling point ]
223 °C10 mm Hg(lit.) | [density ]
0.984 g/mL at 25 °C(lit.)
| [vapor density ]
>1 (vs air)
| [vapor pressure ]
<5 mm Hg ( 20 °C)
| [refractive index ]
n20/D 1.459(lit.)
| [Fp ]
193 °F
| [storage temp. ]
Store below +30°C. | [form ]
A liquid | [Specific Gravity]
0.984 | [Stability:]
Stable. Reacts violently with water. Incompatible with strong acids, strong bases, strong oxidizing agents. Air-sensitive. Combustible. | [Water Solubility ]
Decomposes in water. | [Hydrolytic Sensitivity]
8: reacts rapidly with moisture, water, protic solvents | [Sensitive ]
Moisture Sensitive | [BRN ]
1778847 | [InChIKey]
PYJJCSYBSYXGQQ-UHFFFAOYSA-N | [CAS DataBase Reference]
112-04-9(CAS DataBase Reference) | [NIST Chemistry Reference]
Silane, trichlorooctadecyl-(112-04-9) | [EPA Substance Registry System]
112-04-9(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
C | [Risk Statements ]
R14:Reacts violently with water.
R34:Causes burns.
R29:Contact with water liberates toxic gas. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S43:In case of fire, use ... (indicate in the space the precise type of fire-fighting equipment. If water increases the risk add-Never use water) .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S8:Keep container dry . | [RIDADR ]
UN 1800 8/PG 2
| [WGK Germany ]
1
| [RTECS ]
VV4680000 | [F ]
10-21 | [TSCA ]
Yes | [HazardClass ]
8 | [PackingGroup ]
II | [HS Code ]
29319090 | [Safety Profile]
A corrosive irritant to
skin, eyes, and mucous membranes. Reacts
with water or steam to produce toxic and
corrosive fumes. When heated to
decomposition it emits toxic fumes of Cl-.
See also CHLOROSILANES. | [Hazardous Substances Data]
112-04-9(Hazardous Substances Data) |
| Hazard Information | Back Directory | [General Description]
A colorless liquid with a pungent odor. Flash point of 193°F. Decomposed by water to hydrochloric acid with the evolution of heat. Corrosive to metals and tissue. Used to make various silicon containing compounds. | [Reactivity Profile]
Chlorosilanes, such as OCTADECYLTRICHLOROSILANE, are compounds in which silicon is bonded to from one to four chlorine atoms with other bonds to hydrogen and/or alkyl groups. Chlorosilanes react with water, moist air, or steam to produce heat and toxic, corrosive fumes of hydrogen chloride. They may also produce flammable gaseous H2. They can serve as chlorination agents. Chlorosilanes react vigorously with both organic and inorganic acids and with bases to generate toxic or flammable gases. | [Health Hazard]
TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Contact with molten substance may cause severe burns to skin and eyes. Reaction with water or moist air will release toxic, corrosive or flammable gases. Reaction with water may generate much heat that will increase the concentration of fumes in the air. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. | [Fire Hazard]
Combustible material: may burn but does not ignite readily. Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapors may travel to source of ignition and flash back. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water. | [Chemical Properties]
Colorless clear liquid | [Uses]
n-Octadecyltrichlorosilane is used in semiconductor industry to form self-assembled monolayer thin films on silicon dioxide substrates. Used in molecular electronics, as thin insulating gates in Metal-Insulator-Semiconductor Field-Effect Transistors. It is also used in platinum catalyzed synthesis. | [Purification Methods]
Purify it by fractional distillation at high vacuum. [Winstein & Seubold J Am Chem Soc 69 2916 1947, Beilstein 4 IV 4256.] |
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