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690-39-1

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690-39-1 Usage

Chemical Properties

colourless gas

Uses

HFC 236fa is a CFC replacement for use as a refrigerant and fire-extinguishing agent.

Hazard

Moderately toxic by inhalation route.

Flammability and Explosibility

Nonflammable

Check Digit Verification of cas no

The CAS Registry Mumber 690-39-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,9 and 0 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 690-39:
(5*6)+(4*9)+(3*0)+(2*3)+(1*9)=81
81 % 10 = 1
So 690-39-1 is a valid CAS Registry Number.
InChI:InChI=1/C3H2F6/c4-2(5,6)1-3(7,8)9/h1H2

690-39-1SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 1,1,1,3,3,3-Hexafluoropropane

1.2 Other means of identification

Product number -
Other names 2,2-dihydroperfluoropropane

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:690-39-1 SDS

690-39-1Relevant articles and documents

On the CH3/CF3 substitution effect. The gas-phase structure of 1,1,1,3,3,3-hexafluoropropane

Mack, Hans-Georg,Oberhammer, Heinz,Grosser, Martin,Dakkouri, Marwan

, p. 135 - 142 (1992)

The gas-phase structure of CF3CH2CF3 was determined by electron diffraction.The experimental intensities are consistent with a structure possessing C2v symmetry and the following geometric parameters (ra distances in Angstroem and α angles in degrees, error limits are 3? values): C-H=1.082 (18), C-C=1.518 (4), C-F=1.333 (2), CCC=113.9 (6), FCF=107.7 (1) and HCH=108.7 (not refined).The CF3 groups are tilted by 1.8 (8) deg away from each other.Comparison of these results with the structures of propane, 2-fluoropropane, 2.2-difluoropropane and perfluoropropaneallows a discussion of the effects of fluorination on the C-C- bond lengths and CCC bond angles in this series.The geometries of these compounds have been optimized by ab initio calculations in the HF approximation using different basis sets (3-21G, 6-31G* and 6-311G*).The effect of CH3/CF3 substitution on the C-C-bond lengths is reproduced correctly only with basis sets including polarization functions.

Preparation method of 1, 1, 1, 3, 3, 3-hexafluoropropane

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Paragraph 0043-0046, (2019/05/08)

The invention discloses a preparation method of 1, 1, 1, 3, 3, 3-hexafluoropropane. The method includes: (1) reacting a halogenated inorganic salt with heptafluoroisobutenyl methyl ether in an aproticsolvent, then adding water and performing stirring, conducting cooling and filtering, and rectifying the filtrate to obtain hexafluoroisobutyric acid; and (2) heating the hexafluoroisobutyric acid obtained in step (1), collecting the generated gaseous product and performing cooling to obtain the 1, 1, 1, 3, 3, 3-hexafluoropropane product. The method provided by the invention has the advantages ofsimple process, environmental friendliness, low cost, green and environmental protection.

Method for co-preparation of 2,3,3,3-tetrafluoropropene and 1,3,3,3-tetrafluoropropene from hexafluoropropylene

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Paragraph 0160; 0161; 0162; 0163, (2017/01/05)

2, 3, 3, 3-hexafluoro propylene, the 1, 3, 3, 3-and -1234z3 (HFO-1234yf) (HFP) from -1234z3 (HFO-1234ze, E-form) simultaneous manufacturing method is provided. (by machine translation)

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