Platinum

Appearance / physical state / colour

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

appearance / physical state / colour

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Not reported

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: GLP status not known, guideline not known, information from published handbook, data compendium, review article or other reference text, acceptable with restrictions

Principles of method if other than guideline:

The use of secondary sources of data is acceptable when they are based on a critical evaluation of peer-reviewed data and a consequent selection of a reliable and representative value for the property under investigation. The introduction to the CRC Handbook of Chemistry and Physics states that data for physical constants have been taken from many sources, including both compilations and the primary literature. Where conflicts were found, the value deemed most reliable was chosen. Therefore, although the method used is not known, the values presented here are acceptable as they are from a reliable secondary source of phys chem. data.

GLP compliance:

not specified

Physical state at 20°C and 1013 hPa:

solid

Form:

solid

Colour:

Silver gray

Odour:

other: No data

Substance type:

inorganic

Conclusions:

At 20ºC and 1013 hPa Platinum is an inorganic solid of silvery grey metal.

Executive summary:

This information is taken from a reliable, peer reviewed handbook and so can be considered suitable for use as the key study for this endpoint. At 20°C and 1013 hPa platinum is an inorganic solid of silvery grey metal.

Reference 2

Endpoint:

appearance / physical state / colour

Type of information:

experimental study

Adequacy of study:

supporting study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: GLP status not known, guideline not known, information from published handbook, data compendium, review article or other reference text, acceptable with restrictions

Principles of method if other than guideline:

The use of secondary sources of data is acceptable when they are based on a critical evaluation of peer-reviewed data and a consequent selection of a reliable and representative value for the property under investigation. The introduction to the Toxicological Review of Halogenated Platinum Salts and Platinum compounds states that the literature search strategy employed for this compound was based on the Chemical Abstracts Service Registry Number (CASRN) and at least one common name. Any pertinent scientific information submitted by the public to the IRIS Submission Desk was also considered in the development of this document. The relevant literature was reviewed through August 2008. Therefore, although the method used is not known, the values presented here are acceptable as they are from a reliable secondary source of phys chem. data.

GLP compliance:

not specified

Physical state at 20°C and 1013 hPa:

solid

Form:

solid

Colour:

Silver-grey, or as a black powder

Odour:

other: No data

Substance type:

inorganic

Conclusions:

Platinum is a silver-gray, lustrous, malleable, and ductile metal; also prepared as a black powder and spongy masses.

Executive summary:

This information is taken from a reliable, peer reviewed handbook and so can be considered suitable for use as the key study for this endpoint. Platinum is a silver-gray, lustrous, malleable, and ductile metal; also prepared as a black powder and spongy masses.

Description of key information

At 20°C and 1013 hPa platinum is an inorganic solid of silvery grey metal, it is lustrous, malleable, and ductile. It is also prepared as a black powder and spongy masses.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:

solid

Additional information

The CRC Handbook (Lide, 2008) is a peer-reviewed handbook, and The Toxicological Review of Halogenated Platinum Salts and Platinum Compounds (US EPA 2009) is a peer-reviewed review article. They can be considered reliable and suitable for use as key and supporting data for this endpoint. At 20°C and 1013 hPa Platinum is an inorganic solid of silvery grey metal, it is lustrous, malleable, and ductile. It is also prepared as a black powder and spongy masses.