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BORON TRICHLORIDE

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Name

BORON TRICHLORIDE

EINECS 233-658-4
CAS No. 10294-34-5 Density 1.384 g/cm3
PSA 0.00000 LogP 1.68770
Solubility Decomposes in water Melting Point -107 °C(lit.)
Formula BCl3 Boiling Point 12.5 °C at 760 mmHg
Molecular Weight 117.17 Flash Point -17 °C
Transport Information UN 3390 6.1/PG 1 Appearance colourless gas
Safety 9-26-28-36/37/39-45-8-61-38-28A-16-1-60-33-23-7/9-62 Risk Codes 14-26/28-36/37/38-40-67-65-62-51/53-48/20-34-11-50/53-26/27/28-63-39/23/24/25-24-21-10
Molecular Structure Molecular Structure of 10294-34-5 (Boron trichloride) Hazard Symbols VeryT+, ToxicT, DangerousN, FlammableF
Synonyms

Boronchloride (BCl3) (8CI);Trichloroborane;Trichloroboron;

Article Data 333

BORON TRICHLORIDE Synthetic route

boron

10294-34-5

boron trichloride

Conditions
ConditionsYield
In melt Electrolysis; electrolysis in a chloride melt (400-500°C);100%
With chlorine 400°C;; 6-8 times vac. distn. spect. purity product obtained;
With silver(I) chloride
102-24-9

cyclotriboric acid trimethyl ester

7782-50-5

chlorine

A

boron trioxide

B

10294-34-5

boron trichloride

Conditions
ConditionsYield
byproducts: HCl, ClCOCl; at room temp.;;A n/a
B 96%

C10H20BCl2N2(1+)*BCl4(1-)=[C10H20BCl2N2]BCl4

A

10294-34-5

boron trichloride

B

64486-90-4

1,3-di-tert-butyl-2-chloro-2,3-dihydro-1H-1,3,2-diazaborole

Conditions
ConditionsYield
With sodium amalgam In hexane Ar atmosphere, stiring (overnight in the dark); decantation, filtration, removement of volatiles (vacuum), sublimation (40 to 60°C, 0.01 Torr);A n/a
B 91%
10325-39-0

dichloroborane

A

10294-34-5

boron trichloride

B

19287-45-7

diborane

Conditions
ConditionsYield
With hydrogen condensation of HBCl2/BCl3/B2H6 mixt. on molecular sieve, heating in H2 stream, BCl3 not adsorbed, B2H6 easily desorbed, strongly adsorbed HBCl2 slowly symmetrysied;A n/a
B 90%
With H2 condensation of HBCl2/BCl3/B2H6 mixt. on molecular sieve, heating in H2 stream, BCl3 not adsorbed, B2H6 easily desorbed, strongly adsorbed HBCl2 slowly symmetrysied;A n/a
B 90%
equil. const. Kx determined at 273 K;

A

32915-80-3

octaboron octachloride

C

10294-34-5

boron trichloride

Conditions
ConditionsYield
In tetrachloromethane 100°C, 2 weeks; NMR monitoring; not isolated, detected by NMR;A 88%
B n/a
C n/a
7446-70-0

aluminium trichloride

7637-07-2

boron trifluoride

A

7784-18-1

aluminum(III) fluoride

B

10294-34-5

boron trichloride

Conditions
ConditionsYield
heating with excess of BF3; condensation of BCl3 in an U-tube cooled the mixt. of CO2 and alcohol; fractionated distn.;A n/a
B 80%
heating with excess of BF3; condensation of BCl3 in an U-tube cooled the mixt. of CO2 and alcohol; fractionated distn.;A n/a
B 80%
89033-11-4

1,3-bis(dichloroboryl)propane

13517-10-7

boron triiodide

A

157426-91-0

1,3-bis(diiodoboryl)propane

B

10294-34-5

boron trichloride

Conditions
ConditionsYield
removal of BCl3 in vacuo;; distillation in vacuo after 4 h;;A 78%
B n/a

pentaborane(9)

13701-67-2

diboron tetrachloride

A

17927-57-0

monochlorodiborane

B

1-(dichloroboryl)pentaborane

C

10325-39-0

dichloroborane

D

10294-34-5

boron trichloride

E

19287-45-7

diborane

Conditions
ConditionsYield
In neat (no solvent) reaction carried out in Pyrex tubes to which Teflon valves had been sealed or in a N2-filled glovebox; reaction of B2Cl4 with excess B5H9 in a 1:3 mole ratio; vessel allowed to warm from -196 ° C to ambient temp., 20 min at ambient temp.,; fractionation, yield of 1-BCl2B5H8 based upon amt. of B2Cl4 employed: 73%, based upon amt. of B5H9 consumed: 95%; small amts. of B2H6, BCl2H, B2H5Cl, also material insufficiently volatileto move into vac. line formed;;A n/a
B 73%
C n/a
D n/a
E n/a
3677-81-4

diphenylboronchloride

13517-10-7

boron triiodide

A

17933-05-0

(diphenyl)iodoborane

B

10294-34-5

boron trichloride

Conditions
ConditionsYield
heating at 130-140°C for 4 h; distn.;A 72%
B n/a

boron trioxide

7647-14-5

sodium chloride

10294-34-5

boron trichloride

Conditions
ConditionsYield
800-1000°C; ratio B2O3:NaCl=3:1;60%
800-1000°C; ratio B2O3:NaCl=1:1;30%
0%

BORON TRICHLORIDE Chemical Properties

Boron trichloride(10294-34-5) exists as clear, colorless liquid or gas, fumes in air. Its colorless gas is valuable in organic synthesis.
Molecular Structure:
Molecular Formula:BCl3
Molecular Weight:117.16
EINECS:233-658-4
Density:0.738 g/cm3
Melting Point:-107 ℃
Boiling Point:12.5 ℃ at 760 mmHg
Flash Point:-17 ℃
Solubility:Decomposes in water

BORON TRICHLORIDE Uses

Boron trichloride(10294-34-5) is originally used for production of elemental boron.

BORON TRICHLORIDE Toxicity Data With Reference

1.   

ihl-rat LCLo:20 ppm/7H

   14KTAK    Boron, Metallo-Boron Compounds and Boranes R.M. Adams,New York, NY.: Wiley,1964,726.
2.   

ihl-mus LCLo:20 ppm/7H

   14KTAK    Boron, Metallo-Boron Compounds and Boranes R.M. Adams,New York, NY.: Wiley,1964,726.

BORON TRICHLORIDE Consensus Reports

Reported in EPA TSCA Inventory. EPA Extremely Hazardous Substances List.

BORON TRICHLORIDE Safety Profile

A poison by inhalation. A corrosive and severe irritant to skin, eyes, and mucous membranes. Reacts with water or steam to produce heat, toxic and corrosive fumes. Violent reaction with aniline or phosphine. Incompatible with hexafluorisopropylidene amino lithium, NO2, grease, organic matter, O2. When heated to decomposition it emits toxic fumes of Cl. See also BORON COMPOUNDS and HYDROCHLORIC ACID.
Hazard Codes:  T+,T,N,F
Risk Statements:  14-26/28-36/37/38-40-67-65-62-51/53-48/20-34-11-50/53-26/27/28-63-39/23/24/25-24-21-10
14:  Reacts violently with water 
26/28:  Very Toxic by inhalation and if swallowed 
36/37/38:  Irritating to eyes, respiratory system and skin 
40:  Limited evidence of a carcinogenic effect 
67:  Vapors may cause drowsiness and dizziness 
65:  Harmful: May cause lung damage if swallowed 
62:  Possible risk of impaired fertility 
51/53:  Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment 
48/20:  Harmful: danger of serious damage to health by prolonged exposure through inhalation
34:  Causes burns 
11:  Highly Flammable 
50/53:  Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment 
26/27/28:  Very Toxic by inhalation, in contact with skin and if swallowed 
63:  Possible risk of harm to the unborn child 
39/23/24/25:  Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed 
24:  Toxic in contact with skin 
21:  Harmful in contact with skin 
10:  Flammable 
Safety Statements:  9-26-28-36/37/39-45-8-61-38-28A-16-1-60-33-23-7/9-62
9:  Keep container in a well-ventilated place 
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 
28:  After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) 
36/37/39:  Wear suitable protective clothing, gloves and eye/face protection 
45:  In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) 
8:  Keep container dry 
61:  Avoid release to the environment. Refer to special instructions safety data sheet 
38:  In case of insufficient ventilation, wear suitable respiratory equipment 
28:  After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) 
16:  Keep away from sources of ignition - No smoking 
1:  Keep locked up 
60:  This material and/or its container must be disposed of as hazardous waste 
33:  Take precautionary measures against static discharges 
23:  Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) 
7/9:  Keep container tightly closed and in a well-ventilated place 
62:  If swallowed, do not induce vomiting: seek medical advice immediately and show this container or label
RIDADR:  UN 3390 6.1/PG 1
WGK Germany:  3
RTECS:  ED1925000
F:  10-21
F 10 Keep under argon
F 12 Shake before use
Hazard Note:  Very toxic
HazardClass:  2.3

BORON TRICHLORIDE Standards and Recommendations

DOT Classification:  2.3; Label: Poison Gas, Corrosive
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