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2252-84-8

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2252-84-8 Usage

Synthesis Reference(s)

Journal of the American Chemical Society, 73, p. 4054, 1951 DOI: 10.1021/ja01152a548

General Description

A nonflammable compressed gas. Heavier than air. May asphyxiate by the displacement of air, especially in a confined space. Under prolonged exposure to fire or heat the containers may rupture violently and rocket. Used as a refrigerant.

Reactivity Profile

Halogenated aliphatic compounds, such as 1H-HEPTAFLUOROPROPANE, are moderately or very reactive. Reactivity generally decreases with increased degree of substitution of halogen for hydrogen atoms. Materials in this group may be incompatible with strong oxidizing and reducing agents. Also, they may be incompatible with many amines, nitrides, azo/diazo compounds, alkali metals, and epoxides.

Health Hazard

Vapors may cause dizziness or asphyxiation without warning. Vapors from liquefied gas are initially heavier than air and spread along ground. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire may produce irritating, corrosive and/or toxic gases.

Fire Hazard

Some may burn but none ignite readily. Containers may explode when heated. Ruptured cylinders may rocket.

Check Digit Verification of cas no

The CAS Registry Mumber 2252-84-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,5 and 2 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 2252-84:
(6*2)+(5*2)+(4*5)+(3*2)+(2*8)+(1*4)=68
68 % 10 = 8
So 2252-84-8 is a valid CAS Registry Number.
InChI:InChI=1/C3HF7/c4-1(5)2(6,7)3(8,9)10/h1H

2252-84-8SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017

1.Identification

1.1 GHS Product identifier

Product name 1H-HEPTAFLUOROPROPANE

1.2 Other means of identification

Product number -
Other names 1,1,1,2,2,3,3-heptafluoro-propane

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:2252-84-8 SDS

2252-84-8Relevant articles and documents

Photochemistry of Anhydrides Part 4.-Photolysis of Perfluoro-n-butyric Anhydride Reaction of n-C3F7 Radicals with Cyclohexane

Stock, Colin J.,Whittle, Eric

, p. 496 - 502 (1980)

The photolysis of the vapour of perfluoro-n-butyric anhydride was studied at 20 and 227 deg C.The effective primary process is (n-C3F7CO)2O+hυ -> 2 n-C3F7+CO+CO2 and the overall decomposition is quantitatively described by the equation (n-C3F7CO)2O+hυ -> n-C6F14+CO+CO2.The quantum yields of products increase with temperature but are independent of pressure. (n-C3F7CO)2O was photolysed in the presence of cyclohexane vapour.For the reactions n-C3F7+c-C6H12 -> n-C3F7H+c-C6H11 kH 2n-C3F7 -> C6F14 kc we obtain, log kH/k1/2c = (4.99+/-0.12)-(23910+/-750)/Θ where Θ = 2.303RTJmol-1 and kH/k1/2c is in cm1/2mol-1/2s-1/2.

HETEROCYCLIC POLYFLUORO-COMPOUNDS. PART 35. DEHYDROFLUORINATION OF 2,2-BIS(TRIFLUOROMETHYL)- AND 2-PERFLUOROALKYL-3,4-DIFLUORO-OXETANS

Barlow, M. G.,Coles, B.,Haszeldine, R. N.

, p. 387 - 396 (1980)

Solid potassium hydroxide dehydrofluorinates 2,2-bis-(trifluoromethyl)-3,4-difluoro-oxetan to 3-fluoro-4,4-bis-(trifluoromethyl)-2-oxete (59percent), 2-pentafluoroethyl-3,4-difluoro-oxetan to 2-tetrafluoroethylidene-3,4-difluoro-oxetan, and r-2-heptafluoro-n-propyl-t-3,t-4-difluoro-oxetan to (Z)-2-hexafluoro-n-propylidene-cis-3,4-difluoro-oxetan.Factors which affect these reactions are discussed.

Perfluoroalkyl Grignard Reagents: NMR Study of 1-Heptafluoropropylmagnesium Chloride in Solution

Guang, Jie,Hopson, Russell,Williard, Paul G.,Fujiu, Motohiro,Negishi, Kazuyuki,Mikami, Koichi

, p. 5922 - 5928 (2016/07/23)

We report on the generation of a perfluoroalkyl Grignard reagent (FRMgX) by exchange reaction between a perfluoroalkyl iodide (FR-I) and a Grignard reagent (RMgX). 19F NMR was applied to monitor the generation of n-C3F7MgCl. Additional NMR techniques, including 19F COSY, NOESY, and pulsed gradient spin-echo (PGSE) diffusion NMR, were invoked to assign peaks observed in 19F spectrum. Schlenk equilibrium was observed and was significantly influenced by solvent, diethyl ether, or THF.

Compositions

-

Paragraph 0104; 0105, (2013/09/12)

A composition comprising HCFO-1233xf and at least one additional compound selected from the group consisting of HCFO-1233zd, HCFO-1232xd, HCFO-1223xd, HCFC-253fb, HCFC-233ab, HFO-1234yf, HFO-1234ze, ethylene, HFC-23, CFC-13, HFC-143a, HFC-152a, HFO-1243zf, HFC-236fa, HCO-1130, HCO-1130a, HFO-1336, HCFC-244bb, HCFC-244db, HFC-245fa, HFC-245cb, HCFC-133a, HCFC-254fb, HCFC-1131, HCFO-1242zf, HCFO-1223xd, HCFC-233ab, HCFC-226ba, and HFC-227ca.

PROCESSES FOR THE PRODUCTION OF FLUOROPROPANES AND HALOPROPENES

-

Page/Page column 15-17, (2008/12/05)

A process is disclosed for making CF3CF2CH3, CF3CF=CH2 and/or CF3CCI=CH2. The process involves reacting at least one starting material selected from the group consisting of halopropanes of the formula CX3CH2CH2X, halopropenes of the formula CX3CH=CH2 and halopropenes of the formula CX2=CHCH2X, wherein each X is independently F or Cl, with HF and CI2 in a reaction zone to produce a product mixture comprising HF, HCI, CF3CF2CH3, CF3CF=CH2, and CFsCCI=CH2; and recovering the CF3CF2CH3, CF3CF=CH2 and/or CFsCCI=CH2 from the product mixture. Also disclosed is a process for making CF3CH2CHF2, CFsCH=CHF, and/or CFaCH=CHCI. This process involves reacting at least one starting material selected from the group consisting of halopropenes of the formula CX3CH=CH2 and halopropenes of the formula CX2=CHCH2X, wherein each X is independently F or Cl, with HF and CI2 in a reaction zone to produce a product mixture comprising HF, HCI, CF3CH2CHF2, CFsCH=CHF and CF3CH=CHCI; and recovering the CF3CH2CHF2, CFsCH=CHF, and/or CF3CH=CHCI from the product mixture. The molar ratio of HF to the total amount of starting materials fed to the reaction zone for both of these processes is at least stoichiometric, and the molar ratio of Cl2 to total amount of starting material fed to the reaction zone for both of these processes is 2:1 or less.

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