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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Appearance / physical state / colour

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Administrative data

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Endpoint:
appearance / physical state / colour
Type of information:
not specified
Adequacy of study:
key study
Study period:
2009
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: available as an unpublished report, acceptable with restrictions
Principles of method if other than guideline:
State of the substance information was provided by individual companies in the form of a letter stating the relevant information. The letter was submitted in company’s headed paper and signed by the individual responsible for the area of work. Given that the companies have practical expertise in handling the substance/stream this was deemed to be acceptable information on the state of the substance.
GLP compliance:
not specified
Remarks:
no data provided
Physical state at 20°C and 1013 hPa:
gaseous
Form:
liquified gas
Colour:
Colourless
Odour:
slight
Substance type:
petroleum product
Conclusions:
At 20°C and 1013 hPa the substance with CAS number 68131-75-9 is a colourless liquified gas with a slight odour. It is a petroleum product.
Executive summary:

At 20°C and 1013 hPa the substance with CAS number 68131-75-9 is a colourless liquified gas with a slight odour. It is a petroleum product. Data was received from the company confirming the physical state, form, colour, odour and substance type. This data is considered reliable and suitable for use.

Endpoint:
appearance / physical state / colour
Type of information:
not specified
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: available as an unpublished report, acceptable with restrictions
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.6303 (Physical State)
Deviations:
no
Principles of method if other than guideline:
State of the substance information was provided by individual companies in the form of a letter stating the relevant information. The letter was submitted in company’s headed paper and signed by the individual responsible for the area of work. Given that the companies have practical expertise in handling the substance/stream this was deemed to be acceptable information on the state of the substance.
GLP compliance:
not specified
Remarks:
no data provided
Physical state at 20°C and 1013 hPa:
gaseous
Conclusions:
At 20°C and 1013 hPa the substance with CAS number 68476-40-4 is gaseous.
Executive summary:

At 20°C and 1013 hPa the substance with CAS number 68476-40-4 is gaseous. Data was received from the company confirming the physical state. This data is considered reliable and suitable for use.

Endpoint:
appearance / physical state / colour
Type of information:
not specified
Adequacy of study:
key study
Study period:
2009
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: available as an unpublished report, acceptable with restrictions
Principles of method if other than guideline:
State of the substance information was provided by individual companies in the form of a letter stating the relevant information. The letter was submitted in company’s headed paper and signed by the individual responsible for the area of work. Given that the companies have practical expertise in handling the substance/stream this was deemed to be acceptable information on the state of the substance.
GLP compliance:
not specified
Remarks:
no data provided
Physical state at 20°C and 1013 hPa:
gaseous
Form:
liquified gas
Colour:
Colourless
Odour:
other: Faint hydrocarbon odour
Substance type:
petroleum product
Conclusions:
At 20°C and 1013 hPa the substance with CAS number 68476-49-3 is a colourless liquified gas with a faint hydrocarbon odour. It is a petroleum product.
Executive summary:

At 20°C and 1013 hPa the substance with CAS number 68476-49-3 is a colourless liquified gas with a faint hydrocarbon odour. It is a petroleum product. Data was received from the company confirming the physical state, form, colour, odour and substance type. This data is considered reliable and suitable for use.

Endpoint:
appearance / physical state / colour
Type of information:
not specified
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: available as an unpublished report, acceptable with restrictions
Principles of method if other than guideline:
State of the substance information was provided by individual companies in the form of a letter stating the relevant information. The letter was submitted in company’s headed paper and signed by the individual responsible for the area of work. Given that the companies have practical expertise in handling the substance/stream this was deemed to be acceptable information on the state of the substance.
GLP compliance:
not specified
Remarks:
no data provided
Physical state at 20°C and 1013 hPa:
gaseous
Form:
liquified gas
Colour:
Clear
Odour:
other: characteristic
Substance type:
petroleum product
Conclusions:
At 20°C and 1013 hPa the substance with CAS number 68476-85-7 is a clear liquified gas with a characteristic odour. It is a petroleum product.
Executive summary:

At 20°C and 1013 hPa the substance with CAS number 68476-85-7 is a clear liquified gas with a characteristic odour. It is a petroleum product. Data was received from the company confirming the physical state, form, colour, odour and substance type. This data is considered reliable and suitable for use.

Endpoint:
appearance / physical state / colour
Type of information:
not specified
Adequacy of study:
key study
Study period:
2009
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: available as an unpublished report, acceptable with restrictions
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.6303 (Physical State)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.6304 (Odor)
Deviations:
no
Principles of method if other than guideline:
State of the substance information was provided by individual companies in the form of a letter stating the relevant information. The letter was submitted in company’s headed paper and signed by the individual responsible for the area of work. Given that the companies have practical expertise in handling the substance/stream this was deemed to be acceptable information on the state of the substance.
GLP compliance:
not specified
Remarks:
no data provided
Physical state at 20°C and 1013 hPa:
gaseous
Form:
liquified gas
Colour:
Colourless
Odour:
odourless
Substance type:
petroleum product
Conclusions:
At 20°C and 1013 hPa the substance with CAS number 68476-86-8 is a colourless liquified gas. It is odourless. It is a petroleum product.
Executive summary:

At 20°C and 1013 hPa the substance with CAS number 68476-86-8 is a colourless liquified gas. It is odourless. It is a petroleum product. Data was received from the company confirming the physical state, form, colour, odour and substance type. This data is considered reliable and suitable for use.

Endpoint:
appearance / physical state / colour
Type of information:
not specified
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: available as an unpublished report, acceptable with restrictions
Principles of method if other than guideline:
State of the substance information was provided by individual companies in the form of a letter stating the relevant information. The letter was submitted in company’s headed paper and signed by the individual responsible for the area of work. Given that the companies have practical expertise in handling the substance/stream this was deemed to be acceptable information on the state of the substance.
GLP compliance:
not specified
Remarks:
no data provided
Physical state at 20°C and 1013 hPa:
gaseous
Form:
liquified gas
Conclusions:
At 20°C and 1013 hPa the substance with CAS number 68606-26-8 is a liquified gas.
Executive summary:

At 20°C and 1013 hPa the substance with CAS number 68606-26-8 is a liquified gas. Data was received from the company confirming the physical state and form. This data is considered reliable and suitable for use.

Endpoint:
appearance / physical state / colour
Type of information:
not specified
Adequacy of study:
key study
Study period:
2009
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: available as an unpublished report, acceptable with restrictions
Principles of method if other than guideline:
State of the substance information was provided by individual companies in the form of a letter stating the relevant information. The letter was submitted in company’s headed paper and signed by the individual responsible for the area of work. Given that the companies have practical expertise in handling the substance/stream this was deemed to be acceptable information on the state of the substance.
GLP compliance:
not specified
Remarks:
no data provided
Physical state at 20°C and 1013 hPa:
gaseous
Form:
liquified gas
Colour:
Colourless
Odour:
other: odourless, characteristic if odourised
Substance type:
petroleum product
Conclusions:
At 20°C and 1013 hPa the substance with CAS number 87741-01-3 is a colourless liquified gas. It is odourless (odour is characterisitic if odourised). It is a petroleum product.
Executive summary:

At 20°C and 1013 hPa the substance with CAS number 87741-01-3 is a colourless liquified gas. It is odourless (odour is characterisitic if odourised). It is a petroleum product. Data was received from the company confirming the physical state, form, colour, odour and substance type. This data is considered reliable and suitable for use.

Endpoint:
appearance / physical state / colour
Type of information:
not specified
Adequacy of study:
key study
Study period:
2009
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: available as an unpublished report, acceptable with restrictions
Principles of method if other than guideline:
State of the substance information was provided by individual companies in the form of a letter stating the relevant information. The letter was submitted in company’s headed paper and signed by the individual responsible for the area of work. Given that the companies have practical expertise in handling the substance/stream this was deemed to be acceptable information on the state of the substance.
GLP compliance:
not specified
Remarks:
no data provided
Physical state at 20°C and 1013 hPa:
gaseous
Form:
liquified gas
Colour:
Not applicable
Odour:
other: slightly aromatic
Substance type:
petroleum product
Conclusions:
At 20°C and 1013 hPa the substance with CAS number 95465-89-7 is a liquified gas with a slightly aromatic odour. It is a petroleum product.
Executive summary:

At 20°C and 1013 hPa the substance with CAS number 95465-89-7 is a liquified gas with a slightly aromatic odour. It is a petroleum product. Data was received from the company confirming the physical state, form, odour and substance type. This data is considered reliable and suitable for use.

Description of key information

At standard temperature and pressure, the streams in this category are colourless gases or liquefied gases, either odourless or with slight characteristic, hydrocarbon or aromatic odours.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
gaseous
Form:
gas under pressure: liquefied gas
Colour:
colourless

Additional information

Data are available for the following streams in this category. 68131-75-9 is a petroleum product and, at 20°C and 1013 hPa, the substance is a colourless liquefied gas with a slight odour (Borealis 2009). 68476-49-3 is a petroleum product and, at 20°C and 1013 hPa, the substance is a colourless liquefied gas with a faint hydrocarbon odour (LyondellBasell 2009). 68476-86-8 is a petroleum product and, at 20°C and 1013 hPa, the substance is a colourless liquefied gas and is odourless (Polimeri Europe). 87741-01-3 is a petroleum product and, at 20°C and 1013 hPa, the substance is a colourless liquefied gas and is odourless (odour is characterisitic if odourised) (LyondellBasell 2009). 68606-26-8, at 20°C and 1013 hPa, is a liquefied gas (INEOS Olefins & Polymers Europe). 95465-89-7 is a petroleum product and, at 20°C and 1013 hPa, the substance is a liquefied gas with a slightly aromatic odour (Repsol 2009). 68476-85-7 is a petroleum product and, at 20°C and 1013 hPa, the substance s a clear liquefied gas with a characteristic odour (Borealis 2009). 68476-40-4, at 20°C and 1013 hPa, is gaseous (Dow Benelux B.V. 2009).

According to the CRC Handbook (Lide 2008) and the Merck Handbook (O'Neill 2006), the representative constituents of the other petroleum gases (methane, ethane, ethylene, propane, butane and isobutane) are colourless, odourless gases at standard temperature and pressure.

Information on 1,3 -butadiene is taken from a reliable peer reviewed handbook (O'Neil 2006) and so can be considered reliable and suitable for use as the key study for this endpoint. This result is supported by data from the CRC Handbook (Lide 2008) indicating that 1,3 -butadiene is a gas.