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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Identification

Display Name:
Gases (petroleum), C3-4, isobutane-rich
EC Number:
270-724-1
EC Name:
Gases (petroleum), C3-4, isobutane-rich
CAS Number:
68477-33-8
Molecular formula:
It is a complex combination of hydrocarbons produced by the distillation of the products of a steam cracking process that were further processed. It consists predominantly of hydrocarbons having a carbon number of C3-4, predominantly isobutene, containing also propane, 1-butene and 2-butene, butane, pentane and isobutene and boiling in the range of approximately minus 12°C to 5°C (10.4°F to 41°F). Therefore it is not possible to define a molecular formula, a molecular weight, a SMILES-notation or a structural formula.
IUPAC Name:
gases (petroleum), C3-4, isobutane-rich

Type of Substance

Composition:
UVCB
Origin:
organic

Substance Identifiers

Compositions

Boundary Composition(s) open all close all

State Form:
gas


Constituent 1
Chemical structure
Reference substance name:
Buta-1,3-diene
EC Number:
203-450-8
EC Name:
Buta-1,3-diene
CAS Number:
106-99-0
Molecular formula:
C4H6
IUPAC Name:
buta-1,3-diene
Constituent 2
Chemical structure
Reference substance name:
Buta-1,2-diene
EC Number:
209-674-2
EC Name:
Buta-1,2-diene
CAS Number:
590-19-2
Molecular formula:
C4H6
IUPAC Name:
buta-1,2-diene
Constituent 3
Chemical structure
Reference substance name:
Butane
EC Number:
203-448-7
EC Name:
Butane
CAS Number:
106-97-8
Molecular formula:
C4H10
IUPAC Name:
butane
Constituent 4
Chemical structure
Reference substance name:
But-1-ene
EC Number:
203-449-2
EC Name:
But-1-ene
CAS Number:
106-98-9
Molecular formula:
C4H8
IUPAC Name:
but-1-ene
Constituent 5
Chemical structure
Reference substance name:
2-butene
EC Number:
203-452-9
EC Name:
2-butene
CAS Number:
107-01-7
Molecular formula:
C4H8
IUPAC Name:
2-butene
Constituent 6
Chemical structure
Reference substance name:
(Z)-but-2-ene
EC Number:
209-673-7
EC Name:
(Z)-but-2-ene
CAS Number:
590-18-1
Molecular formula:
C4H8
IUPAC Name:
but-2-ene
Constituent 7
Chemical structure
Reference substance name:
(E)-but-2-ene
EC Number:
210-855-3
EC Name:
(E)-but-2-ene
CAS Number:
624-64-6
Molecular formula:
C4H8
IUPAC Name:
but-2-ene
Constituent 8
Chemical structure
Reference substance name:
2-methylpropene
EC Number:
204-066-3
EC Name:
2-methylpropene
CAS Number:
115-11-7
Molecular formula:
C4H8
IUPAC Name:
2-methylprop-1-ene
Constituent 9
Chemical structure
Reference substance name:
Butene
EC Number:
246-689-3
EC Name:
Butene
CAS Number:
25167-67-3
Molecular formula:
C4H8
IUPAC Name:
butene
Constituent 10
Chemical structure
Reference substance name:
But-1-yne
EC Number:
203-451-3
EC Name:
But-1-yne
CAS Number:
107-00-6
Molecular formula:
C4H6
IUPAC Name:
but-1-yne
Constituent 11
Chemical structure
Reference substance name:
Butenyne
EC Number:
211-713-3
EC Name:
Butenyne
CAS Number:
689-97-4
Molecular formula:
C4H4
IUPAC Name:
but-1-en-3-yne
Constituent 12
Chemical structure
Reference substance name:
Propyne
EC Number:
200-828-4
EC Name:
Propyne
CAS Number:
74-99-7
Molecular formula:
C3H4
IUPAC Name:
prop-1-yne
Constituent 13
Chemical structure
Reference substance name:
Isobutane
EC Number:
200-857-2
EC Name:
Isobutane
CAS Number:
75-28-5
Molecular formula:
C4H10
IUPAC Name:
isobutane
Constituent 14
Chemical structure
Reference substance name:
Pentane
EC Number:
203-692-4
EC Name:
Pentane
CAS Number:
109-66-0
Molecular formula:
C5H12
IUPAC Name:
pentane
Constituent 15
Chemical structure
Reference substance name:
2-methylbut-2-ene
EC Number:
208-156-3
EC Name:
2-methylbut-2-ene
CAS Number:
513-35-9
Molecular formula:
C5H10
IUPAC Name:
2-methylbut-2-ene
Constituent 16
Chemical structure
Reference substance name:
Cyclopentane
EC Number:
206-016-6
EC Name:
Cyclopentane
CAS Number:
287-92-3
Molecular formula:
C5H10
IUPAC Name:
cyclopentane
Constituent 17
Chemical structure
Reference substance name:
2-methylbutane
EC Number:
201-142-8
EC Name:
2-methylbutane
CAS Number:
78-78-4
Molecular formula:
C5H12
IUPAC Name:
isopentane

Legal Entity Composition(s) open all close all

State Form:
gas


Constituent 1
Chemical structure
Reference substance name:
Propane
EC Number:
200-827-9
EC Name:
Propane
CAS Number:
74-98-6
Molecular formula:
C3H8
IUPAC Name:
propane
Constituent 2
Chemical structure
Reference substance name:
Isobutane
EC Number:
200-857-2
EC Name:
Isobutane
CAS Number:
75-28-5
Molecular formula:
C4H10
IUPAC Name:
isobutane
Constituent 3
Chemical structure
Reference substance name:
Butane
EC Number:
203-448-7
EC Name:
Butane
CAS Number:
106-97-8
Molecular formula:
C4H10
IUPAC Name:
butane
Constituent 4
Chemical structure
Reference substance name:
But-1-ene
EC Number:
203-449-2
EC Name:
But-1-ene
CAS Number:
106-98-9
Molecular formula:
C4H8
IUPAC Name:
but-1-ene
Constituent 5
Chemical structure
Reference substance name:
Buta-1,3-diene
EC Number:
203-450-8
EC Name:
Buta-1,3-diene
CAS Number:
106-99-0
Molecular formula:
C4H6
IUPAC Name:
buta-1,3-diene
Constituent 6
Chemical structure
Reference substance name:
Pentane
EC Number:
203-692-4
EC Name:
Pentane
CAS Number:
109-66-0
Molecular formula:
C5H12
IUPAC Name:
pentane

Composition(s) generated upon use

Other types of composition(s)