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44570

Sigma-Aldrich

Dowtherm® A

eutectic mixture of 26.5% diphenyl + 73.5% diphenyl oxide

Sinónimos:

Diphyl

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About This Item

MDL number:
MFCD00148859
UNSPSC Code:
12352100
PubChem Substance ID:
57650233
NACRES:
NA.22

refractive index

n20/D 1.590

mp

12-14 °C (lit.)

functional group

phenoxy

SMILES string

c1ccc(cc1)-c2ccccc2.O(c3ccccc3)c4ccccc4

InChI

1S/C12H10O.C12H10/c1-3-7-11(8-4-1)13-12-9-5-2-6-10-12;1-3-7-11(8-4-1)12-9-5-2-6-10-12/h1-10H;1-10H

InChI key

MHCVCKDNQYMGEX-UHFFFAOYSA-N

General description

Dowtherm® A is a thermally stable organic heat transfer fluid composed of a eutectic mixture of highly stable compounds, biphenyl, and diphenyl oxide. Dowtherm® A is suitable for high-temperature heat transfer applications up to 400 °C. This fluid can be used in both liquid and vapor phase systems.

Application

Dowtherm® A can be used as a high boiling solvent in cyclization reactions. For example, it is used to synthesize:      
  • 1-Hydroxy-5-methoxy-1,2-dihydrobenzo[f][2,7]naphthyridines from 2-chloro-3-formyl quinolines.     
  • Isoindolinone derivatives via intramolecular Diels–Alder cycloaddition reactions of substituted pyridazines.
  • Phosphorylated azaheterocycles from 2-diethoxyphosphoryl-3-methoxyacrylate via intramolecular cyclizations under thermal conditions.

Legal Information

DOWTHERM is a registered trademark of The Dow Chemical Company or an affiliated company of Dow

pictograms

Exclamation markEnvironment
GHS07,GHS09

signalword

Warning

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

10 - Combustible liquids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

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Certificados de análisis (COA)

Lot/Batch Number
BCCG1348
BCCC0745
BCBZ6475
BCBT8183
BCBQ9008V

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Thermal neutron cross sections and diffusion parameters of diphenyl and Dowtherm-A using a synthetic scattering function.
Florido PC, et al.
Journal of Nuclear Materials, 185(1), 114-122 (1999)
Enhancement of heat transport in thermosyphon air preheater at high temperature with binary working fluid: A case study of TEG-water.
Nuntaphan A, et al.
Applied Thermal Engineering, 22(3), 251-266 (2002)
Hongwei Yao et al.
Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases, 20(1), 5-9 (2003-12-26)
To study injury of liver and kidney among the workers exposed to terephthalic acid(TPA), ethylene glycol(EG) and(or) dowtherm A(DOW), and research for early biological monitoring indexes. By using the method of occupational epidemiology, an investigation of industrial hygiene in a
Rolf Winter et al.
Experimental parasitology, 127(2), 545-551 (2010-11-03)
Our prior work on tricyclic acridones combined with a desire to minimize the tricyclic system led to an interest in antimalarial quinolones and a reexamination of endochin, an experimental antimalarial from the 1940's. In the present article, we show that
An experimental study of small-diameter wickless heat pipes operating in the temperature range 200 C to 450 C.
Jouhara H and Robinson AJ.
Heat Transfer Engineering, 30(13), 1041-1048 (2009)
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