Dimethyl dichlorosilane 75-78-5
ISO 3 Inquiries
75-78-5
Industrial Grade
99%
Qingdao
Shengtai
Drum
2025-05-31
Epichlorohydrin,Epoxy resin,Calcium chloride,2-Hydroxyethyl acrylate (HEA),2-HYDROXYPROPYLACRYLATE(HPA),2-Hydroxy Ethyl Methacrylate (HEMA)
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Product Description
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Seller Information
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Inquiry History
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DescriptionCertificatesBasic Info
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Product Name:
Dichlorodimethylsilane
Other Name:Silane,dichlorodimethyl-;Dichlorodimethylsilane;Dimethyldichlorosilane;Inerton AW-DMCS;Dichlorodimethylsilicon;Dimethylsilane dichloride;Repel-Silane;LS 130;M 2 (silane);M 2;KA 22;NSC 77070;LS 130 (silane);DCDMS;KA 12;SID 4120.0;TSL 8032
CAS No.:75-78-5
Molecular Formula:C2H6Cl2Si
InChIKeys:InChIKey=LIKFHECYJZWXFJ-UHFFFAOYSA-N
Molecular Weight:129.061
Exact Mass:129.06
EC Number:200-901-0
UNII:8TSJ92JX69
ICSC Number:0870
NSC Number:77070
UN Number:1162
DSSTox ID:DTXSID9026425
Color/Form:Colorless liquid
HScode:29310095
Categories:
Characteristics-
PSA:
0
XLogP3:3.18
Appearance:Dimethyldichlorosilane appears as a colorless fuming liquid with a pungent odor. Flash point 16°F. Vapor and liquid may cause burns. Denser than water. Vapors heavier than air.
Density:1.07 g/cm3
Melting Point:<-70 °C
Boiling Point:70.5 °C
Flash Point:-16.1±0.0 °C
Refractive Index:1.410
Water Solubility:reacts
Storage Conditions:Dimethyldichlorosilane must be stored to avoid contact with oxidizers (such as perchlorates, peroxides, permanganates, chlorates, and nitrates) since violent reactions occur. Before entering confined space where this chemical may be present, check to make sure that an explosive concentration does not exist. Store in tightly closed containers in a cool, well-ventilated area away from water, steam, or moisture because toxic and corrosive hydrogen chloride gas can be produced. Do not store at tempe
Vapor Pressure:<200 hPa (20 °C)
Vapor Density:Relative vapour density (air = 1): 4.4
Toxicity:LD50 orally in Rabbit: 6056 mg/kg
Flammability characteristics:Lower flammable limit: 3.4%; Upper flammable limit: 9.5%
Explosive limit:Explosive limits , vol% in air: 1.4-9.5
Odor:SHARP, LIKE HYDROCHLORIC ACID
Henrys Law Constant:Henry's Law constant = 1.8X10-2 atm-cu m/mol at 25 °C (est)
Experimental Properties:Reacts with water to form complex mixture of dimethylsiloxanes, and liberates hydrogen chloride.|Freezing point: -86 °C|Organo-functional silanes are noted for their ability to bond organic polymer systems to inorganic substrates. /Silane cmpd/|The reaction of organosilanes with halogens and halogen cmpd usually proceeds in good yield through cleavage of the Si--H bond and formation of the silicon-halogen bond. Reaction with fluorine, however, does not proceed satisfactorily because of cleavage of not only the Si--H but also C--Si and C--H bonds. Direct halogenation with chlorination, bromine, and iodine proceeds smoothly, however. /Organosilanes/|Hydroxyl radical reaction rate constant = 2.9X10-13 cu cm/molec-sec at 25 °C (est)
Air and Water Reactions:Highly flammable. Fumes in air. May react violently with water (moisture in air or soil) to generate hydrogen chloride, Title 46(1966). Dimethyldichlorosilane reacts vigorously with water to generate gaseous HCl. Based on a scenario where the chemical is spilled into an excess of water (at least 5 fold excess of water), half of the maximum theoretical yield of Hydrogen Chloride gas will be created in 0.75 minutes. Experimental details are in the following: "Development of the Table of Initial Isolation and Protective Distances for the 2008 Emergency Response Guidebook", ANL/DIS-09-2, D.F. Brown, H.M. Hartmann, W.A. Freeman, and W.D. Haney, Argonne National Laboratory, Argonne, Illinois, June 2009.
Reactive Group:Chlorosilanes
Reactivity Alerts:Highly Flammable
Reactivity Profile:Chlorosilanes, such as DIMETHYLDICHLOROSILANE, 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.
Autoignition Temperature:750 °F (USCG, 1999)|716 °F (380 °C)|380 °C
Flammable Limits:Lower flammable limit: 3.4%; Upper flammable limit: 9.5%
Physical Dangers:The vapour is heavier than air and may travel along the ground; distant ignition possible.
Corrosivity:Corrosive
Heat of Vaporization:100 BTU/LB = 58 CAL/G = 2.4X10+5 JOULE/KG
Hazard IdentificationClassification of the substance or mixture
Flammable liquids, Category 2
Skin irritation, Category 2
Eye irritation, Category 2
Specific target organ toxicity â single exposure, Category 3
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Danger
Hazard statement(s) H225 Highly flammable liquid and vapour
H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation
Precautionary statement(s) Prevention P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/...] equipment.
P242 Use non-sparking tools.
P243 Take action to prevent static discharges.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P264 Wash ... thoroughly after handling.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
Response P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse affected areas with water [or shower].
P370+P378 In case of fire: Use ... to extinguish.
P302+P352 IF ON SKIN: Wash with plenty of water/...
P321 Specific treatment (see ... on this label).
P332+P317 If skin irritation occurs: Get medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P319 Get medical help if you feel unwell.
Storage P403+P235 Store in a well-ventilated place. Keep cool.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
NO open flames, NO sparks and NO smoking. NO contact with hot surfaces. Closed system, ventilation, explosion-proof electrical equipment and lighting. Do NOT use compressed air for filling, discharging, or handling. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Fireproof. Separated from incompatible materials. See Chemical Dangers. Cool. Dry. Keep under inert gas. Well closed.SRP: Operations involving entry into tanks or closed vessels, and emergency situations, require consideration of potentially oxygen deficient, or "immediately dangerous to life and health" IDLH environments. This may necessitate use of a self-contained breathing apparatus (SCBA), or a positive pressure supplied air respirator.
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Seller Information
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Business Type:
Trader
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Main Products:
Epichlorohydrin,Epoxy resin,Calcium chloride,2-Hydroxyethyl acrylate (HEA),2-HYDROXYPROPYLACRYLATE(HPA),2-Hydroxy Ethyl Methacrylate (HEMA)
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Location:
C5-517, Magnetic Capital International Central Avenue, Nankai District, Tianjin, China 300381
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Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance
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Average lead Time:
10
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Total Annual Revenue:
$10 million-$25 million
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Total Employees:
51-100
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Year of Establishment:
2023
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Certifications:
Hazardous chemicals business license,Hazardous chemicals business license
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Inquiry History3 Inquiries
Country Product Purchase Quantity Date Posted 
Turkey
Dichlorodimethylsilane
10 KG Feb 7, 2024 
South Korea
Dichlorodimethylsilane 99% liquid
2 MT Mar 1, 2026 
India
Dichlorodimethylsilane 99%
10 KG Jul 18, 2024 Post an enquiry for this product
