| Identification | More | [Name]
Chlorodimethylsilane | [CAS]
1066-35-9 | [Synonyms]
CHLORODIMETHYLSILANE
DIMETHYLCHLOROSILANE
DIMETHYLSILYL CHLORIDE
DMCS
DMSC
CD5470
chlorodimethyl-silan
dimethylchlorosilane(flammableliquids,corrosive,n.o.s.)
DIMETHYLCHLOROSILANE GC STATIONERY PAHSE
Dimethylchlorosilane(Chlorodimethylsilane)
Silane, chlorodimethyl-
DIMETHYLHYDROGENCHLOROSILANE
Dimethylchlorosilane, DMCS
Chlorodimethylhydrosilane
Dimethylchlorohydrosilane
Dimethylhydrosilyl chloride
Dimethylmonochlorosilane
chrolodimethylsilane | [EINECS(EC#)]
213-912-0 | [Molecular Formula]
C2H7ClSi | [MDL Number]
MFCD00000495 | [Molecular Weight]
94.62 | [MOL File]
1066-35-9.mol |
| Chemical Properties | Back Directory | [Appearance]
Colorless clear liquid | [Melting point ]
−111 °C(lit.)
| [Boiling point ]
34.7 °C(lit.)
| [density ]
0.852 g/mL at 25 °C(lit.)
| [vapor density ]
4 (vs air)
| [vapor pressure ]
8.56 psi ( 20 °C)
| [refractive index ]
n20/D 1.383(lit.)
| [Fp ]
−20 °F
| [storage temp. ]
0-6°C | [solubility ]
Miscible with organic solvents. | [form ]
Liquid | [color ]
Clear colorless | [Specific Gravity]
0.868 | [explosive limit]
3.0-20.0%(V) | [Water Solubility ]
reacts | [Hydrolytic Sensitivity]
8: reacts rapidly with moisture, water, protic solvents | [Sensitive ]
Moisture Sensitive | [BRN ]
1633434 | [InChI]
1S/C2H7ClSi/c1-4(2)3/h4H,1-2H3 | [InChIKey]
YGHUUVGIRWMJGE-UHFFFAOYSA-N | [SMILES]
C[SiH](C)Cl | [CAS DataBase Reference]
1066-35-9(CAS DataBase Reference) | [NIST Chemistry Reference]
Silane, chlorodimethyl-(1066-35-9) | [EPA Substance Registry System]
1066-35-9(EPA Substance) |
| Safety Data | Back Directory | [Symbol(GHS) ]
  
GHS02,GHS05,GHS06 | [Signal word ]
Danger | [Hazard statements ]
H224-H261-H314-H331 | [Precautionary statements ]
P210-P231+P232-P233-P280-P303+P361+P353-P305+P351+P338 | [Hazard Codes ]
F,C,F+ | [Risk Statements ]
R11:Highly Flammable.
R34:Causes burns.
R12:Extremely Flammable. | [Safety Statements ]
S16:Keep away from sources of ignition-No smoking .
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 .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S9:Keep container in a well-ventilated place . | [RIDADR ]
UN 2988 4.3/PG 1
| [WGK Germany ]
1
| [F ]
10-21 | [TSCA ]
Yes | [REACH Registrations]
Active | [HazardClass ]
3 | [PackingGroup ]
I | [HS Code ]
29310095 | [Storage Class]
4.3 - Hazardous materials which set free flammable gases upon contact with water | [Hazard Classifications]
Acute Tox. 3 Inhalation
Flam. Liq. 1
Skin Corr. 1A
Water-react 3 |
| Raw materials And Preparation Products | Back Directory | [Raw materials]
Disilane, 1-chloro-1,1,2,2-tetramethyl--->Dimethylsilane-->Dimethyl Chloro Ethoxy silane-->1,1,2,2-Tetramethyldisilane-->methyl-methylsilyl-silane-->Dichlorodimethylsilane | [Preparation Products]
1,2-Bis(dimethylsilyl)benzene-->1,1,3,3-Tetramethyldisilazane-->1,4-Bis(dimethylsilyl)benzene-->Dimethylsilyldiethylamine-->[2-(3-Cyclohexenyl)ethyl]dimethylchlorosilane-->Chloro(dodecyl)dimethylsilane-->(1,1-Dimethyl-2-propenyloxy)dimethylsilane |
| Hazard Information | Back Directory | [General Description]
A colorless fuming liquid with a pungent, burning odor. Flash point-18°F. Boiling point 95°F. Density about 6.9 lb/gal. Extremely corrosive to skin and respiratory tissues, both as a liquid and vapor. Vapors are heavier than air. | [Reactivity Profile]
Chlorosilanes, such as DIMETHYLCHLOROSILANE, 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. | [Air & Water Reactions]
Highly flammable. Reacts violently on contact with water to liberate heat and hydrogen chloride gas. | [Health Hazard]
May cause toxic effects if inhaled or ingested/swallowed. Contact with substance may cause severe burns to skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution. | [Fire Hazard]
Flammable/combustible material. May be ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water. | [Chemical Properties]
Colorless clear liquid | [Physical properties]
bp 35–36°C; mp ?111°C; n20D 1.3830;
d 0.852 g cm?3. | [Uses]
Chlorodimethylsilane is used to prepare vinyldimethylsilanols for palladium-catalyzed cross-coupling with aryl iodides. Chlorodimethylsilane in combination with a tertiary amine such as triethylamine is another useful reagent for the synthesis of hydrodimethylsilyl ethers, especially for large scale preparations. | [Application]
Will form high-boiling polymeric by-products with aqueous
work-up. | [Flammability and Explosibility]
Extremelyflammable | [Toxics Screening Level]
The initial threshold screening levels (ITSLs) for chlorodimethylsilane (CDMS) are 5400
μg/m3 (1-hr averaging time) and 52 μg/m3 (annual averaging time). |
|
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