N-BUTYLTRICHLOROSILANE Chemical Properties

Melting point:

147-149 °C

Boiling point:

149 °C(lit.)

Density 

1.16 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.437(lit.)

Flash point:

114 °F

form 

liquid

Specific Gravity

1.161

color 

colorless

Sensitive 

Moisture Sensitive

Hydrolytic Sensitivity

8: reacts rapidly with moisture, water, protic solvents

BRN 

1736032

CAS DataBase Reference

7521-80-4(CAS DataBase Reference)

EPA Substance Registry System

Silane, butyltrichloro- (7521-80-4)

Safety Information

Hazard Codes 

C

Risk Statements 

10-14-34

Safety Statements 

26-36/37/39-45

RIDADR 

UN 1747 8/PG 2

WGK Germany 

1

RTECS 

VV2080000

F 

10-21

TSCA 

Yes

HazardClass 

8

PackingGroup 

II

HS Code 

29319090

Hazardous Substances Data

7521-80-4(Hazardous Substances Data)

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

N-BUTYLTRICHLOROSILANE Usage And Synthesis

Description

Butyl trichlorosilane is a colorless liquid.Molecular weight = 191.57. Boiling point = 149℃; Flashpoint =45℃ (cc); 54℃ (oc). Hazard Identification(based on NFPA-704 M Rating System): Health 3,Flammability 2, Reactivity 2 . Insoluble in water; reactsviolently.

Chemical Properties

Butyl trichlorosilane is a colorless liquid.

Uses

BTS can be coated on the glass substrate to introduce the surface alkyl, which can bind well with 2-methacryloyloxyethyl-4-azidobenzoate (MPAz) to convert hydrophophobic glass surfaces to superhydrophilic surfaces. It can functionalize zinc peroxide nanoparticle/polystyrene sulfonate (PSS) hybrid based sensors to improve the limit of detection by three-folds.

General Description

A colorless liquid with a pungent odor. Flash point 126°F. Corrosive to metals and skin. Used to make various silicon containing compounds.

Reactivity Profile

N-BUTYLTRICHLOROSILANE reacts with water, moist air, or steam to produce heat and toxic, corrosive fumes of hydrogen chloride and flammable butane. Can serve as a chlorination agent. Reacts vigorously with both organic and inorganic acids and with bases to generate toxic or flammable gases. Reacts with alcohols, acetone and light metals.

Health Hazard

Inhalation of vapor irritates upper respiratory system. Contact of liquid with eyes or skin causes severe burns. Ingestion causes burns of mouth and stomach.

Safety Profile

A corrosive poison. See also CHLOROSILANE. Flammable liquid when exposed to heat, flame (sparks), or oxidizers. To fight fire, use water to blanket fire, fog, mist, dry chemical, alcohol foam. Reacts with water or steam to produce heat and toxic and corrosive fumes. When heated to decomposition it emits highly toxic fumes of Cl-.

Potential Exposure

This is a raw material for silicone resin productio

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least30 min, occasionally lifting upper and lower lids.Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash490 Butyl trichlorosilaneimmediately with soap and water. Seek medical attentionimmediately. If this chemical has been inhaled, removefrom exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing hasstopped and CPR if heart action has stopped. Transferpromptly to a medical facility. When this chemical has beenswallowed, get medical attention. If victim is conscious,administer water or milk. Do not induce vomiting. Medicalobservation is recommended for 24
48 h after breathingoverexposure, as pulmonary edema may be delayed. As firstaid for pulmonary edema, a doctor or authorized paramedicmay consider administering a corticosteroid spray.

storage

(1) Color Code—White: Corrosive or Contact Hazard. Store separately in a corrosion-resistant location. (2) Color Code—Red: Flammability Hazard: Store in a flammable liquid storage area or approved cabinet away from ignition sources and corrosive and reactive materials. Prior to working with butyl trichlorosilane you should be trained on its proper handling and storage. Store in tightly closed containers in a cool, well-ventilated area away from moisture and incompatible materials listed above. Metal containers involving the transfer of this chemical should be grounded and bonded. Drums must be equipped with selfclosing valves, pressure vacuum bungs, and flame arresters. Use only nonsparking tools and equipment, especially when opening and closing containers of this chemical. Sources of ignition, such as smoking and open flames, are prohibited where this chemical is used, handled, or stored in a manner that could create a potential fire or explosion hazard.

Shipping

UN1747 Butyl trichlorosilane, Hazard class: 8; Labels: 8—Corrosive material, 3—Flammable liquid

Incompatibilities

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Chlorosilanes react vigorously with bases and both organic and inorganic acids genera ting toxic and/or flammable gases. Chlorosilanes react with water, moist air, or steam to produce heat and toxic, corrosive fumes of hydrogen chloride. They may also produce flammable gaseous hydrogen. Attacks metals in the presence of moisture

N-BUTYLTRICHLOROSILANE(7521-80-4)Related Product Information

• N-Butyltriethoxy Silane
• N-HEXADECYLTRICHLOROSILANE
• Cyclohexyltrichlorosilane
• DODECYLTRICHLOROSILANE
• HEXYLTRICHLOROSILANE
• 3-CYANOPROPYLTRICHLOROSILANE
• N-BUTYLTRICHLOROSILANE
• DOCOSYLTRICHLOROSILANE
• 1H,1H,2H,2H-Perfluorooctyltrichlorosilane
• N-DECYLTRICHLOROSILANE
• Octyltrichlorosilane
• Amyltrichlorosilane (mixed isomers)(Pentyltrichlorosilane)
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• N-TETRADECYLTRICHLOROSILANE
• N-OCTADECYLTRICHLOROSILANE
• Silicon tetrahydride
• N-BUTYLSILANE
• Trichlorosilane