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Tris(trimethylsilyl) borate

Product Name
Tris(trimethylsilyl) borate
CAS No.
4325-85-3
Chemical Name
Tris(trimethylsilyl) borate
Synonyms
TMSB;Tris(trimethylsiloxy)boron, min. 97%;BORON TRIMETHYLSILOXIDE;TRIS(TRIMETHYSILOXY)BORON;TRIS(TRIMETHYLSILOXY)BORON;TRIS(TRIMETHYLSILYL) BORATE;Borane, tris(trimethylsiloxy)-;Tris(trimethylsiloxy)boron ,96%;TRIS(TRIMETHYLSILOXY)BORON 97+%;TRIS(TRIMETHYLSILYL) BORATE 99%
CBNumber
CB3733453
Molecular Formula
C9H27BO3Si3
Formula Weight
278.38
MOL File
4325-85-3.mol
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Tris(trimethylsilyl) borate Property

Melting point:
-35°C
Boiling point:
186 °C (lit.)
Density 
0.831 g/mL at 25 °C (lit.)
refractive index 
n20/D 1.386(lit.)
Flash point:
109 °F
storage temp. 
Inert atmosphere,2-8°C
form 
Liquid
Specific Gravity
0.828
color 
Clear colorless
Sensitive 
Moisture Sensitive
Hydrolytic Sensitivity
7: reacts slowly with moisture/water
BRN 
1772733
InChI
InChI=1S/C9H27BO3Si3/c1-14(2,3)11-10(12-15(4,5)6)13-16(7,8)9/h1-9H3
InChIKey
YZYKZHPNRDIPFA-UHFFFAOYSA-N
SMILES
[Si](C)(C)(C)OB(O[Si](C)(C)C)O[Si](C)(C)C
CAS DataBase Reference
4325-85-3
EPA Substance Registry System
Silanol, trimethyl-, triester with boric acid (H3BO3) (4325-85-3)
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Safety

Hazard Codes 
Xi
Risk Statements 
10-36/37/38
Safety Statements 
26-36
RIDADR 
UN 1993 3/PG 3
WGK Germany 
3
10-21
TSCA 
Yes
HazardClass 
3
PackingGroup 
III
HS Code 
29319090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H226Flammable liquid and vapour

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
348635
Product name
Tris(trimethylsilyl) borate
Purity
99%
Packaging
100g
Price
$65.4
Updated
2024/03/01
Sigma-Aldrich
Product number
348635
Product name
Tris(trimethylsilyl) borate
Purity
99%
Packaging
25g
Price
$108
Updated
2024/03/01
TCI Chemical
Product number
T2543
Product name
Tris(trimethylsilyl) Borate
Purity
>97.0%(T)
Packaging
25g
Price
$93
Updated
2024/03/01
TCI Chemical
Product number
T2543
Product name
Tris(trimethylsilyl) Borate
Purity
>97.0%(T)
Packaging
100g
Price
$279
Updated
2024/03/01
Alfa Aesar
Product number
L06277
Product name
Tris(trimethylsilyl) borate, 98%
Packaging
5g
Price
$26.65
Updated
2024/03/01
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Tris(trimethylsilyl) borate Chemical Properties,Usage,Production

Chemical Properties

Clear colorless liquid

Uses

Tris(trimethylsilyl) borate is used as intermediate of organic synthesis and additive of lithium battery electrolyte.

Properties and Applications

Tris (trimethylsilyl) borate (TMSB) has been investigated as a protective cathode additive for increasing the cycle performance of several high-voltage cathode materials, including LiMn2O4 (4.5 V), LiNi0.5Co0.2Mn0.3O2 (4.4 V), LiNi0.5Mn1.5O4 (4.9 V) and layered lithium-rich oxide cathode Li[Li0.2Mn0.54Ni0.13Co0.13]O2 (4.8 V). TMSB can also be applied as an effective electrolyte additive to raise the cycle life of LiMn2O4 and LiFePO4 cathode Li-ion batteries at 55 °C. Compared with tris(trimethylsilyl)phosphate (TMSP), the CEI film generated from TMSB, which contains B and Si-rich compounds, shows a better ability to restrain the growth of interfacial resistance during cycling. The results reveal that the TMSB additive is easy to complex with Li+ ions, thus weakening the intermolecular force between Li+ ions and ethylene carbonate solvent, which is beneficial for the cycle performance. Besides, the changed Li+ solvation structure results in a thin and dense CEI film containing compounds with Si–O and B–O bonds, which favors the transfer of Li+ ions[1–2].

References

[1] Yan Chunfeng . “Tris(trimethylsilyl) borate as an electrolyte additive for high-voltage lithium-ion batteries using LiNi1/3Mn1/3Co1/3O2 cathode.” Journal of Energy Chemistry 25 4 (2016): Pages 659-666.
[2] Jie Wang . “Adjusting the solvation structure with tris(trimethylsilyl)borate additive to improve the performance of LNCM half cells.”Journal of Energy Chemistry 67 (2022): Pages 55-64.

Tris(trimethylsilyl) borate Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from Tris(trimethylsilyl) borate manufacturers

WUHAN FORTUNA CHEMICAL CO., LTD
Product
Tris(trimethylsilyl) borate 4325-85-3
Price
US $0.00/KG
Min. Order
1KG
Purity
98%min
Supply Ability
30tons/month
Release date
2023-02-21
Hebei Guanlang Biotechnology Co., Ltd.
Product
Tris(trimethylsilyl) borate 4325-85-3
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2022-10-25
Milestone Chemical Wuxi Co.,Ltd
Product
Tris(trimethylsilyl) borate 4325-85-3
Price
US $0.00-0.00/kg T
Min. Order
1kg T
Purity
99.9%MIN
Supply Ability
20TONS
Release date
2023-03-20

4325-85-3, Tris(trimethylsilyl) borateRelated Search:


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  • Borane, tris(trimethylsiloxy)-
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  • 4325-85-3
  • C9H27BO3Si3
  • CH33SiO3B
  • Organometallic Reagents
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