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44570

Sigma-Aldrich

Dowtherm® A

eutectic mixture of 26.5% diphenyl + 73.5% diphenyl oxide

Sinonimo/i:

Diphyl

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About This Item

Numero MDL:
MFCD00148859
Codice UNSPSC:
12352100
ID PubChem:
57650233
NACRES:
NA.22

Indice di rifrazione

n20/D 1.590

Punto di fusione

12-14 °C (lit.)

Gruppo funzionale

phenoxy

Stringa SMILE

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
MHCVCKDNQYMGEX-UHFFFAOYSA-N

Descrizione generale

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.

Applicazioni

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.

Note legali

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

Pittogrammi

Exclamation markEnvironment
GHS07,GHS09

Avvertenze

Warning

Indicazioni di pericolo

H315 - H319 - H335 - H410

Classi di pericolo

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

Organi bersaglio

Respiratory system

Codice della classe di stoccaggio

10 - Combustible liquids

Classe di pericolosità dell'acqua (WGK)

WGK 2

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

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Certificati d'analisi (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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