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Trimethyl borate

Trimethyl borate Suppliers list
Company Name: Henan DaKen Chemical CO.,LTD.
Tel: +86-371-66670886
Products Intro: Product Name:Trimethyl borate
Purity:99% Package:100g,500g,1kg,5kg,10kg
Company Name: Shanghai Bojing Chemical Co.,Ltd.
Tel: +86-21-37122233
Products Intro: Product Name:Trimethyl borate
Purity:99% Package:1kg;25kg;200kg Plastic drum Remarks:Colorless liquid
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: 0371-55170693
Products Intro: Product Name:121-43-7
Purity:0.99 Package:25KG,5KG;1KG;500G
Company Name: Shanghai Time Chemicals CO., Ltd.
Tel: +86-021-57951555 +8618017249410
Products Intro: Product Name:Trimethyl borate
Company Name: Hefei TNJ Chemical Industry Co.,Ltd.
Tel: +86-0551-65418679
Products Intro: Product Name:Trimethyl Borate
Purity:98% Package:200kg;USD

Trimethyl borate manufacturers

  • Trimethyl borate
  • $15.00-10.00 / KG
  • 2021-08-12
  • CAS:121-43-7
  • Min. Order: 1KG
  • Purity: 99%+ HPLC
  • Supply Ability: Monthly supply of 1 ton
  • Trimethyl borate
  • 2021-07-09
  • CAS:121-43-7
  • Min. Order: 1KG
  • Purity: 99%
  • Supply Ability: 80 Ton/Tons per Month
  • Trimethyl borate
  • $1.00-10.00 / ASSAYS
  • 2021-06-08
  • CAS:121-43-7
  • Min. Order: 10ASSAYS
  • Purity: 99%
  • Supply Ability: 1000kg/month
Trimethyl borate Basic information
Product Name:Trimethyl borate
Product Categories:Boronic Acids and Derivatives;organic or inorganic borate;Organometallics;B (Classes of Boron Compounds);Boric Acid Esters;Boric Acid Triesters;Boron Compounds;Chemical Synthesis;Organoborates;Organometallic Reagents
Mol File:121-43-7.mol
Trimethyl borate Structure
Trimethyl borate Chemical Properties
Melting point -34 °C (lit.)
Boiling point 68-69 °C (lit.)
density 0.932 g/mL at 20 °C (lit.)
vapor density 3.59 (vs air)
refractive index n20/D 1.358(lit.)
Fp 8 °F
storage temp. Store at <= 20°C.
solubility Miscible with tetrahydrofuran, ether, isoporpylamine, hexane and methanol.
form Liquid
color Colorless
Specific Gravity0.915
Specific Gravity0.883
Water Solubility reacts
Sensitive Moisture Sensitive
Hydrolytic Sensitivity7: reacts slowly with moisture/water
Merck 14,9712
BRN 1697939
Stability:Stable. Incompatible with oxidizing agents. Decomposes slowly in the presence of moisture, rapidly in water. Flammable.
CAS DataBase Reference121-43-7(CAS DataBase Reference)
NIST Chemistry ReferenceBoric acid, trimethyl ester(121-43-7)
EPA Substance Registry SystemBoric acid (H3BO3), trimethyl ester (121-43-7)
Safety Information
Hazard Codes Xn,F,T
Risk Statements 11-21-23/25-36/37/38-10-36-61-60
Safety Statements 16-27-36/37/39-45-25-23-2-26-53
RIDADR UN 2416 3/PG 2
WGK Germany 3
RTECS ED5600000
HazardClass 3
PackingGroup II
HS Code 29209085
Hazardous Substances Data121-43-7(Hazardous Substances Data)
ToxicityLD50 orally in rats: 6.14 ml/kg (Smyth)
MSDS Information
Trimethyl borate English
SigmaAldrich English
ACROS English
ALFA English
Trimethyl borate Usage And Synthesis
Chemical PropertiesWater-white liquid. Miscible with ether, methanol, hexane, tetrahydrofuran; decomposes in presence of water.
UsesAs solvent for waxes, resins, oils; catalyst in the manufacture of ketones; analysis of paint and varnish ingredients; as neutron detector gas in the presence of a scintillation counter; as a promoter of diborane reactions.
DefinitionChEBI: A member of the class of borate esters obtained by the formal condensation of three equivalents of methanol with boric acid.
General DescriptionA water-white liquid. Denser than water. Flash point 80°F. Vapors heavier than air. Used as a solvent and fungicide for fruit.
Air & Water ReactionsHighly flammable. Rapidly decomposes in water.
Reactivity ProfileBorates, such as Trimethyl borate, behave similarly to esters in that they react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters/borates with alkali metals and hydrides.
Health HazardMay cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.
Fire HazardHIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
Safety ProfileModerately toxic by ingestion, skin contact, and intraperitoneal routes. An eye irritant. A very dangerous fire hazard when exposed to heat, flame, or oxidizers. Moderately explosive when exposed to flame. Will react with water or steam to produce toxic and flammable vapors. To fight fire, use dry chemical, CO2, spray, foam. When heated to decomposition it emits acrid smoke and irritating fumes. See also ESTERS and BORON COMPOUNDS.
Purification MethodsCarefully fractionate the borate through a gauze-packed column. Re-distil and collect it in weighed glass vials and seal them. Keep it away from moisture. It undergoes alkyl exchange with alcohols and forms azeotropes, e.g. with MeOH the azeotrope consists of 70% (MeO)3B and 30% MeOH with b 52-54o/760mm, d 0.87. [Charnley et al. J Chem Soc 2288 1952, Gerrard & Lappert Chem Ind (London) 53 1952, Schlesinger et al. J Am Chem Soc 75 213 1953.] It has also been dried with Na and then distilled. [Beilstein 1 IV 1269.]
Trimethyl borate Preparation Products And Raw materials
Raw materialsTetramethyl orthosilicate
Preparation Products2-ISOPROPOXYPHENYLBORONIC ACID-->3,4,5-Trifluorophenol-->1-Methyl-1H-pyrazole-5-boronic acid pinacol ester-->2-(Methanesulfonylamino)phenylboronic acid-->1-METHYL-1H-INDOLE-5-BORONIC ACID 2,2-DIMETHYL PROPANE DIOL-1,3-CYCLIC ESTER-->8-Quinolineboronic acid-->2,3-Dimethylphenylboronic acid-->4-FLUORO-2-NITROPHENYLBORONIC ACID-->1-Methyl-4-pyrazole boronic acid pinacol ester-->4-FLUORO-3-(HYDROXYMETHYL)BENZENEBORONIC ACID-->Sodium tetraphenylboron-->3,5-Dimethylisoxazole-4-boronic acid-->5-METHOXYBENZOFURAN-2-BORONIC ACID-->4-Benzyloxybenzeneboronic acid-->2-Benzyloxyphenylboronic acid-->4-(METHOXYCARBONYL)PHENYLBORONIC ACID-->2,2'-BITHIOPHENE-5-BORONIC ACID-->3-Methoxymethylphenylboronic acid-->4-Isopropylbenzeneboronic acid-->(4-PHENYLAMINOCARBONYLPHENYL)BORONIC ACID-->1,4-Phenylenebisboronic acid-->2,6-Difluorophenol-->4-Cyanophenylboronic acid-->2-Naphthaleneboronic acid-->5-Indolylboronic acid-->4-(Methylthio)phenylboronic acid-->Quinoline-5-boronic acid-->4-PHENOXYPHENYLBORONIC ACID-->2-Methoxypyridine-3-boronic acid-->Biphenyl-3-boronic acid-->Benzo[b]thien-2-ylboronic acid-->2,5-Dichlorophenylboronic acid-->2-(N,N-DIETHYLAMINOCARBONYL)PHENYLBORONIC ACID-->3,4-METHYLENEDIOXYPHENYLBORONIC ACID-->Isopropenylboronic acid pinacol ester-->4-tert-Butylphenylboronic acid-->Benzofuran-2-boronic acid-->2-Fluorophenylboronic acid-->2-FLUOROPHENYLBORONIC ACID-->Benzylboronic acid
Tag:Trimethyl borate(121-43-7) Related Product Information
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