Tributylchlorosilane (HCID 70448)

Names & identifiers

Preferred name: Tributylchlorosilane
IUPAC: tributyl(chloro)silane
English name: Tributylchlorosilane
Molecular formula: C12H27ClSi
Molecular weight: 234.88

Names & synonyms

TributylchlorosilaneSilane, tributylchloro-EINECS 213-627-1NSC 139852DTXSID6061367RefChem:190914DTXCID7049130213-627-1JSQJUDVTRRCSRU-UHFFFAOYSA-N995-45-9Chlorotributylsilanetributyl(chloro)silane

Show more names

DK963CHLOROTRI-N-BUTYLTributylchorosilanetributylchloro-silan

Chlorotri-n-butylsilaneTri-N-butylchlorosilaneTributylsilyl chlorideC12H27ClSiMFCD00000509tri-n-butylchlorosilane(chlorotri-n-butylsilane)CX2EDU6MJ7NSC-139852

Database identifiers

CAS: 995-45-9
PubChem CID: 70448
DTXSID: DTXSID6061367
UNII: CX2EDU6MJ7
EC Number: 213-627-1
Nikkaji: J298.598E

Properties

Computed structural properties

Topological polar surface area: 0 Å²
Hydrogen bond donors: 0
Hydrogen bond acceptors: 0
Rotatable bonds: 9
Heavy atoms: 14
Formal charge: 0
Complexity: 104

Physicochemical properties

Boiling point: 250 · 250-252 °C (lit.)
Density: 0.879 g/mL · 0.879 g/mL at 25 °C (lit.)
refractive index: 20 · n20/D 1.446(lit.)
Flash point: 220 °F · 220 °F
storage temp.: Store at room temperature, keep dry and cool
form: clear liquid
color: Colorless to Light yellow
Specific Gravity: 0.879 · 0.879
Water Solubility: Reacts with water.
Sensitive: Moisture Sensitive
Hydrolytic Sensitivity: 8 · 8: reacts rapidly with moisture, water, protic solvents
BRN: 1742537 · 1742537
InChI: InChI=1S/C12H27ClSi/c1-4-7-10-14(13,11-8-5-2)12-9-6-3/h4-12H2,1-3H3
InChIKey: JSQJUDVTRRCSRU-UHFFFAOYSA-N
SMILES: [Si](CCCC)(CCCC)(CCCC)Cl
CAS DataBase Reference: 995 · 995-45-9(CAS DataBase Reference)
FDA UNII: 2 EDU6MJ7 · CX2EDU6MJ7
NIST Chemistry Reference: Silane, tributylchloro-(995-45-9)
EPA Substance Registry System: Silane, tributylchloro- (995-45-9)
UNSPSC Code: 12352001 · 12352001
NACRES: 22 · NA.22
Symbol(GHS): 5 · GHS05
Signal word: Danger
Hazard statements: 314 · H314
Precautionary statements: 280 · P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363-P405
PPE: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
Hazard Codes: C
Risk Statements: 34 · 34-37
Safety Statements: 26 · 26-36/37/39-45
RIDADR: 2987 · UN 2987 8/PG 2
WGK Germany: 1 · 1
F: 10 · 10-21
TSCA: TSCA listed
HazardClass: 8 · 8
PackingGroup: II
HS Code: 29349990 · 29349990
Storage Class: 8 A · 8A - Combustible corrosive hazardous materials
Hazard Classifications: 1 Skin · Eye Dam. 1Skin Corr. 1B

Safety & regulation

GHS classification

GHS Classification · 4 items

Danger

H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 45 reports by companies from 4 notifications to the ECHA C&L Inventory.

Hazard information

Hazard Classes and CategoriesSkin Corr. 1B (100%)

Safety data

F: 10-21
PPE: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
wgk: 1
tsca: TSCA listed
ridadr: UN 2987 8/PG 2
hs_code: 29349990
risk_code: 34-37
Signal word: Danger
Symbol(GHS): GHS05
hazard_code: C
safety_code: 26-36/37/39-45
hazard_class: 8
Storage Class: 8A - Combustible corrosive hazardous materials
packing_group: II
Hazard statements: H314
Hazard Classifications: Eye Dam. 1Skin Corr. 1B
Precautionary statements: P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363-P405

Chemistry & industry

Uses & manufacturing

General Manufacturing InformationSilane, tributylchloro-: ACTIVE

Applications · 3 items

DescriptionTributylchlorosilane is a silanising agent widely used as a surface modification reagent and coupling agent in various chemical processes. It enhances hydrophobicity and improves adhesion properties by reacting with hydroxyl groups on surfaces to form stable siloxane bonds. Therefore, it is valuable in applications such as coating materials, silicone polymer manufacturing, and reagents for chromatographic analysis. The mechanism is that the chlorosilane group reacts with the surface hydroxyl group, replacing the surface chlorine atom by a covalent bond, while the butyl group provides hydrophobic properties.

UsesChlorotri-n-butylsilane is as silylating agent. It can react with bromo-trifluoro-methane, to product tributyl-trifluoromethyl-silane.

General DescriptionVisit our Sensor Applications portal to learn more.