Basic information
- Name:
Silane, dichloromethyl-
- Superlist Name:
- Dichloromethylsilane
- CAS No.:
75-54-7
- Molecular Structure:

- Formula:
- CH4Cl2Si
- Molecular Weight:
- 115.04
- Synonyms:
- Methyl dichlorosilane;Methylsilicondichloride (7CI);Dichlorohydridomethylsilicon;LS 50;Methyldichlorosilane;Monomethyldichlorosilane;
- EINECS:
- 200-877-1
- Density:
- 1.105 g/cm3
- Melting Point:
- -93 °C
- Boiling Point:
- 38.4 °C at 760 mmHg
- Flash Point:
- -26 °F
- Solubility:
- decomposes in water
- Appearance:
- Colorless clear liquid
- Hazard Symbols:
F,
T,
C- Risk Codes:
- 11-14/15-28-34-37
- Safety Description:
- 16-26-36/37/39-43-45-7/8-30 Details
- Transport Information:
- UN 1242 4.3/PG 1
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Chemistry
Product Name: Dichloromethylsilane
The MF of Dichloromethylsilane(75-54-7) is CH4Cl2Si.

The MW of Dichloromethylsilane(75-54-7) is 115.03.
Synonyms: CM8750;dichlorohydridomethylsilicon;dichloromethyl-silan;dichloromethylsilane,[flammableliquid];Methyldichlorosilan;Methyl-dichlorsilan;methyl-dichlorsilan(czech);monomethyldichlorosilane
Product Categories: Chloro;Dichlorosilanes;Si (Classes of Silicon Compounds);Si-Cl Compounds;Si-H Compounds;Chloro Silanes
Mol File: 75-54-7.mol
EINECS: 200-877-1
Enthalpy of Vaporization: 27.14 kJ/mol
Boiling Point: 38.4 °C at 760 mmHg
Vapour Pressure: 468 mmHg at 25°C
MP: -93 °C
Density: 1.105 g/mL at 25 °C(lit.)
Storage temp: 2-8°C
Water Solubility: DECOMPOSES
Sensitive: Air & Moisture Sensitive
CAS DataBase Reference: 75-54-7(CAS DataBase Reference)
NIST Chemistry Reference: 75-54-7(NIST)
EPA Substance Registry System: 75-54-7(EPA Substance)
Uses
Toxicity Data With Reference
| 1. | skn-rbt 2 mg/24H SEV | 85JCAE Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.: Avicenum,1986,1218. | ||
| 2. | eye-rbt 20 mg/24H MOD | 85JCAE Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.: Avicenum,1986,1218. | ||
| 3. | orl-rat LD50:2830 µL/kg | JACTDZ Journal of the American College of Toxicology. 12 (1993),572. | ||
| 4. | ihl-rat LC50:300 ppm/4H | 85JCAE Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.: Avicenum,1986,1218. |
Consensus Reports
Safety Profile
Moderately toxic by inhalation. Corrosive. A severe irritant to skin, eyes, and mucous membranes. Ignites spontaneously in air. A very dangerous fire hazard when exposed to heat or flame. Forms impact-sensitive explosive mixtures with potassium permanganate, lead(II) oxide, lead(IV) oxide, copper oxide, silver oxide. To fight fire, use water, foam, CO2, mist. When heated to decomposition it emits toxic fumes of Cl−. See also CHLOROSILANES.
Safety information of Dichloromethylsilane(75-54-7):
Hazard Codes:
F,
T,
C
Risk Statements: 11-14/15-28-34-37
R11:Highly Flammable ;
R14/15:Reacts violently with water, liberating extremely flammable gases ;
R28:Very Toxic if swallowed ;
R34:Causes burns ;
R37:Irritating to the respiratory system ;
Safety Statements: 16-26-36/37/39-43-45-7/8-30
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 ;
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) ;
S7/8:Keep container tightly closed and dry ;
S30:Never add water to this product ;
RIDADR: UN 1242 4.3/PG 1
WGK Germany: 1
RTECS: VV3500000
F: 10-21
TSCA: Yes
HazardClass: 4.3
PackingGroup: I
Hazardous Substances Data: 75-54-7(Hazardous Substances Data)

