Surface tensions of trialkyl borates

Christopher, Phoebus M.; Guerra, Gaston V.

doi:10.1021/je60051a010

Cited by 3 publications

(3 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where M is the molecular weight and p the density may be differentiated to give d In R/dt = [6n(an/at)/(n2 -1)(n2 + 2) -a In p/at] (3) Table III lists average values for dn/dt (deduced from eq 1) and for d In R/dt, where the data for the evaluation of a In p/at were taken from ref 2; the results are tabulated in the same order of wavelengths as in Table II.…”

Section: Resultsmentioning

confidence: 99%

A refractometric study of trialkyl borates

Christopher¹,

Deshpande²,

Frimpong³

1979

J. Chem. Eng. Data

Self Cite

View full text Add to dashboard Cite

Greek Notation AH¡ change in Hof pure component i between two states, Btu/lb AHP change in H between two temperatures at constant pressure, Btu/lb AHT change in H between two pressures at constant temperature, Btu/lb /-/ 3p specific enthalpy of vaporization, Btu/lb µ Joule-Thonnson coefficient = (a T/eP)H, °F/psia isothermal throttling coefficient ( /ß ) , Btu/ lb-psia (A) values of adjusted to ensure thermodynamic consistency (8) smoothed values before thermodynamic consistency checks Subscripts i component in a mixture j, k

show abstract

Section: Resultsmentioning

confidence: 99%

A refractometric study of trialkyl borates

Christopher¹,

Deshpande²,

Frimpong³

1979

J. Chem. Eng. Data

Self Cite

View full text Add to dashboard Cite

show abstract

“…from the curve presented in Figure 2, and were compared with the literature values. The result of this comparison is presented in Table III, in which the percentage deviation is defined by 100( Vexpt| -i/oaicd)/ ^expti• The specific volumes calculated by eq 1 by using the generalized eq 4 and C obtained from Figure 3 reproduce the literature data within 1.4%.…”

mentioning

confidence: 81%

“…The equation for the fluid thermal conductivity, k, is based on the Fourier law at steady state k= q(Ar)/A(AT) (4) where A = geometric average of the areas = 4irr10r2[, r10 = outer radius of the inner = 0.0254 m, r% = inside radius of the outer sphere, 0.0298 m, Ar = thickness of the annular space, 0.004445 m. The term AT\s the temperature drop across the sample. But recall that while one thermocouple Is located on the outside surface of the inner sphere, the other is located on the outside surface of outer sphere.…”

Section: Appendixmentioning

confidence: 99%

Thermal conductivities of trialkyl borates

Deshpande¹,

Christopher²,

Tullock³

1979

J. Chem. Eng. Data

Self Cite

View full text Add to dashboard Cite

Boric Acid Esters

Docks¹

2000

Kirk-Othmer Encyclopedia of Chemical Technology

View full text Add to dashboard Cite

The general formula for boric acid esters is B(OR) 3 . The lower molecular weight esters such as methyl, ethyl, and phenyl are most commonly referred to as methyl borate, ethyl borate, and phenyl borate, respectively. Some of the more common boric acid esters used in industrial applications are trimethyl borate, trimethyl borate azeotrope, triethyl borate, triethyl borate azeotrope, tri‐ n ‐propyl borate, triisopropyl borate, tri‐ n ‐butyl borate, triphenyl borate, tricresyl borate, trimethoxyboroxine, and triisopropoxyboroxine. Most reported boric acid esters are trialkoxy or triaryloxy boranes. The esters range from colorless low boiling liquids to solids that possess high melting points. Boric acid esters usually have an odor similar to the hydroxy compound from which they are derived. Alkyl boric acid esters derived from straight‐chain alcohols and aryl boric acid esters are stable to relatively high temperatures. Trialkoxyboranes from branched‐chain alcohols are much less stable, and boranes from tertiary alcohols can even decompose at 100°C. Decomposition of branched‐chain esters leads to mixtures of olefins, alcohols, and other derivatives. Methods used for the preparation of borate esters, include the esterification of boric acid or boric oxide, B 2 O 3 , and transesterification. Most methyl borate is produced by Morton International and used captively to manufacture sodium borohydride. Aryl borates produce phenols when in contact with water and are therefore subject to shipping regulations governing such materials and must carry a Corrosive Chemical label. Lower alkyl borates are flammable; methyl, ethyl, and butyl borates must be stored in approved areas. Other compounds are not hazardous. Boric acid esters are used in the production of sodium borohydride, gas fluxing, as polymer additives, in hydraulic fluids and lubricants, as biocides, and in hydrocarbon oxidation.

show abstract

Surface tensions of trialkyl borates

Cited by 3 publications

References 4 publications

A refractometric study of trialkyl borates

A refractometric study of trialkyl borates

Thermal conductivities of trialkyl borates

Boric Acid Esters

Contact Info

Product

Resources

About