688-74-4 Usage
Description
Tributyl borate is a water-white liquid that is combustible and hydrolyzes rapidly. It has a distillation range where 85% of it distills between 135°C and 140°C (40 mm Hg) and is miscible with common organic liquids.
Uses
Used in Chemical Industry:
Tributyl borate is used as an intermediate in the preparation of borohydrides.
Used in Textile Industry:
Tributyl borate is used as a flame retardant for textiles, often in combination with boric acid.
Used in Welding Industry:
Tributyl borate is used in welding fluxes to improve the welding process and protect the weld area from oxidation and other unwanted reactions.
Used in Pharmaceutical Industry:
Tributyl borate is used as a catalyst in the formation of dihydropyrimidinones under solvent-free microwave-assisted conditions, which is important for the synthesis of various pharmaceutical compounds.
Air & Water Reactions
Rapidly decomposes in water.
Reactivity Profile
Borates 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. Reacts vigorously with oxidizing materials. .
Health Hazard
ACUTE/CHRONIC HAZARDS: Toxic; may emit toxic fumes when heated to decomposition or on contact with acid or acid fumes, local irritant.
Safety Profile
Moderately toxic by
ingestion and intraperitoneal routes. An eye
irritant. Flammable when exposed to heat,
flame, or oxiduers. To fight fire, use foam,
CO2, dry chemical. When heated to
decomposition or on contact with acid or
acid fumes it can emit toxic fumes; on
contact with oxidizing materials it can react
vigorously. See also BORANES and
BORON COMPOUNDS.
Purification Methods
The chief impurities are n-butyl alcohol and boric acid (from hydrolysis). It must be handled in a dry-box and can readily be purified by fractional distillation, under reduced pressure. [O’Brien Aust J Chem 10 91 1957, Gerrard & Lappert J Chem Soc 2545, 2547 1951, Beilstein 1 IV 1544.]
Check Digit Verification of cas no
The CAS Registry Mumber 688-74-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,8 and 8 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 688-74:
(5*6)+(4*8)+(3*8)+(2*7)+(1*4)=104
104 % 10 = 4
So 688-74-4 is a valid CAS Registry Number.
InChI:InChI=1/C12H27BO3/c1-4-7-10-14-13(15-11-8-5-2)16-12-9-6-3/h4-12H2,1-3H3
688-74-4Relevant articles and documents
McCusker,Kilzer
, p. 372 (1960)
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Mikhailov,B.M.,Aronovich,P.M.
, (1961)
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A method for the production of sulfate or sulfonate esters
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Paragraph 0034; 0038, (2015/03/31)
The present invention relates to method for the production of sulfate or sulfonate esters essentially comprising the steps of adding sulfuric acid or sulfonic acid to boron acid in a medium with or without solvent (121), stirring the prepared mixture 8122), removing the precipitated boric acid (123), removing the solvent in case the solvent is used (124), producing dialkyl sulfate esters, mono alkyl sulfate esters and sulfonate esters of alkali metal salts (125), and based on the acidolysis of boron esters obtained from alcohol and boric acid with sulfuric acid or sulfonic acid.
Triorganyl- and diorganyloxozirconium hydridoborates - Synthesis and structures
Knizek, Joerg,Noeth, Heinrich,Schmidt-Amelunxen, Martin
, p. 5548 - 5557 (2012/02/04)
The reactions of Zr(OBu)4 and Zr(OEt)4 with H 3B·THF in THF led to HB(OR)2 and B(OR)3, but no zirconium tetrahydroborate [(RO)4-nZr(BH4) n] could be isolated. On the contrary, the reactions of [tBu 3CO]4-nZrCln and [tBu3SiO] 4-nZrCln with LiBH4 generated the tetrahydroborates [(RO)3Zr(BH4)] and [(RO) 2Zr(BH4)2]. These can be used to produce by hydroborate exchange dihydridodiorganyl borates [(RO)4-nZr(H 2BC8H14)n] and byproducts. The structures of the new zirconium hydridoborates have been determined by X-ray crystallography. Compound [(tBu3CO)3Zr(H 2BC8H14)] shows site-disordered dihydroborate units with agostic Zr-H-C interactions, while [(tBu3SiO) 2Zr(H2BC8H14)2] is quite symmetric (C2/c). The corresponding tetrahydridoborates possess in most cases μ31-bonded ZrH3BH groups. Compounds of the type [(RO)4-nZr(BH4)n] were obtained from the reaction of(RO)4Zr (R = Bu, Et) with H 3B·THF or that of (RO)4-nZrCln(n = 1, 2; R = tBu3C, tBu3Si) with LiBH4. Boryl group exchange with H2BC8H14- leads to (RO)4Zr(H2BC8H14)n with agostic Zr-H-B bonding when n = 1, whereas a symmetric ZrH2B compound results when n = 2. Copyright
Synthesis and antioxidant characteristics of borate esters used in lubricating oil
Shekarriz,Ghanbari,Taghipoor,Khalili,Hajialiakbari,Adibi,Soleymani
experimental part, p. 3646 - 3652 (2010/11/04)
In the present studies, the preparation of esters of boric acid with hindered phenols is reported, wherein the alkyl groups are branched on the α-carbon atoms. The products were evaluated in terms of their oxidative stability. In most cases, improvements in oxidative stability in ahydrocarbon media (cumene) were observed.