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Changes of refractive index on mixing for the binary mixtures {xCH3OH+(1−x) CH3OCH2(CH2OCH2)3CH2OCH3} and {xCH3OH+(1−x)CH3OCH2(CH2OCH2)nCH2OCH3} (n=3–9) at temperatures from 293.15 K to 333.15 K

✍ Scribed by S.M. Pereira; T.P. Iglesias; J.L. Legido; L. Rodrı́guez; J. Vijande

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
154 KB
Volume
30
Category
Article
ISSN
0021-9614

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✦ Synopsis

Refractive indices were measured over the entire composition range at atmospheric pressure Ž . Ž for the binary mixtures CH OH with CH OCH CH OCH CH OCH 2,5,8,11,14 3 3 2 2 2 3 2 3 . Ž . Ž . pentaoxapentadecane, or Tegdme and CH OCH CH OCH CH OCH n s 3᎐9 3 2 2 2n 2 3 Ž . Pegdme 250 at temperatures from 293.15 K to 333.15 K. The experimental values were fitted by a polynomial equation in mole fraction.

Experimental values were measured with an Abbemat-type refractometer with a synthetic Ž . sapphire prism sodium D wavelength . Changes of refractive index on mixing were determined and fitted to a variable-degree polynomial equation. Their parameters and root-mean-square deviations were calculated.

📜 SIMILAR VOLUMES

Excess molar volumes of {xCH3(CH2)3OH +
Excess molar volumes of {xCH3(CH2)3OH + (1−x)H(CH2)ν(OCH2CH2)3OH} (ν= 1, 2, and 4) at the temperature 298.15 K
✍ A. Pal; W. Singh 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 268 KB

The excess molar volumes V E m of {xCH3(CH2)3OH + (1x)H( CH2)n(OCH2CH2)3OH} for n = 1, 2, and 4 were determined as a function of mole fraction x using a continuous-dilution dilatometer at the temperature 298.15 K. The V E m values decreased as the alkyl chain length of the alkoxyethanol increased. E

Relative permittivity increments for {xC
Relative permittivity increments for {xCH3OH +  (1  − x)CH3OCH2(CH2OCH2)3CH2OCH3} fromT =  283.15 K toT =  323.15 K
✍ S.M. Pereira; T.P. Iglesias; J.L. Legido; M.A. Rivas; J.N. Real 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 121 KB

Relative permittivities of {CH 3 OH + CH 3 OCH 2 (CH 2 OCH 2 ) 3 CH 2 OCH 3 (2,5,8,11,14pentaoxapentadecane, tegdme)} at temperatures from 283.15 K to 323.15 K and atmospheric pressure, were measured over the whole composition range. Experimental relative permittivities were fitted by a polynomial f

Excess molar volumes of {x1CH3CH2COOCH2C
Excess molar volumes of {x1CH3CH2COOCH2CH3+x2CH3(CH2)4CH3+ (1 −x1−x2)CH3(CH2)2OH or CH3(CH2)3OH} at the temperature 298.15 K
✍ E. Jiménez; C. Franjo; C.P. Menaut; L. Segade; J.L. Legido; M.I. Paz Andrade 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 265 KB

Excess molar volumes at the temperature 298.15 K were measured for , and {xCH3(CH2)4 CH3 +(1x)CH3(CH2)3OH}. Excess molar volumes were determined using an Anton Paar DMA 60/602 densimeter. The experimental values obtained in this work were compared with results obtained using methods which estimate

Speeds of sound and isentropic compressi
Speeds of sound and isentropic compressibilities of {xCH3O(CH2)2OH+(1−x)H(CH2)ν(OCH2CH2)2OH} (ν=1, 2, and 4) at the temperature 298.15 K
✍ A. Pal; W. Singh 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 209 KB

The speed of sound u has been obtained at a frequency of 4 MHz in 4xCH3O(CH2)2OH + (1 -x)H( CH2)n (OCH2CH2)2OH5 for n = 1, 2, and 4 over the whole range of x at T = 298.15 K and atmospheric pressure, using a NUSONIC velocimeter based on the sing-around technique. The excess molar volumes were taken

Excess molar volumes of the ternary mixt
Excess molar volumes of the ternary mixture {x1CH3(CH2)3OH+x2CH3(CH2)4CH3(CH2)4CH3+ (1–x1–x2)CH3(CH2)3NH2} at temperatures of 298.15 K and 313.15 K
✍ M. Domı́nguez; P. Cea; C. Lafuente; F.M. Royo; J.S. Urieta 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 360 KB

Excess molar volumes V E m of the ternary mixture {x1CH3(CH2)3OH+x2CH3(CH2)4CH3 + (1-x1-x2)CH3(CH2)3NH2} at the temperatures 298.15 K and 313.15 K, and the binary mixtures {xCH3(CH2)3OH + (1-x)CH3(CH2)3NH2}, {xCH3(CH2)4CH3 + (1-x)CH3(CH2)3NH2} at T=313.15 K have been determined from density measurem

Densities and refractive indices of {x1C
Densities and refractive indices of {x1CH3COCH3+x2CH3OH + (1 −x1−x2)CH3(CH2)4OH} at the temperature 298.15 K
✍ M Iglesias; B Orge; J Tojo 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 425 KB

Densities and refractive indices at the temperature 298.15 K of {x1CH3COCH3 + x2CH3OH + (1 -x1 -x2)CH3(CH2)4OH} and of the corresponding binary mixtures: {xCH3COCH3 + (1x)CH3(CH2)4OH}, and {xCH3OH + (1x)CH3(CH2)4OH}, have been determined experimentally as a function of the mole fraction at atmospher