Halocarbon C318-Octafluorocyclobutane - ( C4F8 )

Name: Halocarbon C318-Octafluorocyclobutane - ( C4F8 )
Availability: halocarbon-c318-octafluorocyclobutane-c4-273887.html

Category:Fine Chemicals > Other Fine Chemicals
Product Name:Halocarbon C318-Octafluorocyclobutane - ( C4F8 )
CAS No.:115-25-3
Standard:In-house Standards
Price(USD):Negotiable
Company:Shanghai Wechem Technology Limited

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Basic Info

Grade: Pharmaceutical Grade

Factory Location: Building A311, Building A, No. 1255 Jinhai Road, Pudong New Area, Shanghai (Dingxin Building)

Main Sales Markets: North America,Central/South America,Western Europe,Eastern Europe,Australasia,Asia,Middle East,Africa
Sample Provided: no

Payment Terms: L/L

Specifications
Purity , %	99.9	99.999
Oxygen	≤80 ppmv	≤1.0 ppmv
Nitrogen	≤300 ppmv	≤3.0 ppmv
Carbon Dioxide	≤50ppmv	≤0.5ppmv
Carbon Monoxide	≤30 ppmv	≤0.5 ppmv
Methane	≤30 ppmv	≤0.5 ppmv
Water	≤10 ppmv	≤3.0 ppmv
Other Organics	≤600 ppmv	≤5.0 ppmv
Acidity as HCL	≤1.0 ppmw	≤0.1 ppmw

Ship
DOT Shipping Name	Octafluorocyclobutane
DOT Classification	2.2
DOT Label	Non-flammable Gas
UN Number	UN 1976
CAS No.	115-25-3
CGA/DISS/JIS	660/716/W22-14L
Shipped as	Liquefied Gas

Technical Information
Cylinder State @ 21.1°C	Liquid
Flammable Limits In Air	Non-flammable
Auto Ignition Temperature (°C )	-
Molecular Weight (g/mol)	200.03
Specific gravity (air =1)	7.33
Critical Temperature ( °C )	115.2
Critical Pressure ( psig )

Applications
Perfluorocyclobutane (C4F8) is used in semiconductor manufacturing as plasma etching of silicon dioxide (SiO2) or silicon layers.

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