|Molar mass||142.20 g/mol|
|Melting point||−22 °C (−8 °F; 251 K)|
|Boiling point||240–243 °C (464–469 °F; 513–516 K)|
|R-phrases||R22 R42 R43|
|S-phrases||S7 S36 S37 S39|
|Flash point||82 °C (180 °F; 355 K)|
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
|what is: / ?)(|
1-Methylnaphthalene is a polycyclic aromatic hydrocarbon (PAH). It has a cetane number of zero, and was previously used as the lower reference for cetane number. However, due to the expense and handling difficulty of 1-Methylnaphthalene, it was replaced in this capacity by isocetane, with a CN of 15.
On February 22, 2014, NASA announced a greatly upgraded database for detecting and monitoring PAHs, including 1-Methylnaphthalene, in the universe. According to NASA scientists, over 20% of the carbon in the universe may be associated with PAHs, possible starting materials for the formation of life. PAHs seem to have been formed shortly after the Big Bang, are abundant in the universe, and are associated with new stars and exoplanets.
- 1-Methylnaphthalene at University of Oxford
- Cetane number
- Hoover, Rachel (February 21, 2014). "Need to Track Organic Nano-Particles Across the Universe? NASA's Got an App for That". NASA. Retrieved February 22, 2014.
- Staff (October 29, 2013). "PAH IR Spectral Database". NASA. Retrieved March 12, 2014.
- Carey, Bjorn (October 18, 2005). "Life's Building Blocks 'Abundant in Space'". Space.com. Retrieved March 3, 2014.
- Hudgins, Douglas M.; Bauschlicher,Jr, Charles W.; Allamandola, L. J. (October 10, 2005). "Variations in the Peak Position of the 6.2 μm Interstellar Emission Feature: A Tracer of N in the Interstellar Polycyclic Aromatic Hydrocarbon Population". Astrophysical Journal 632: 316–332. doi:10.1086/432495. Retrieved March 3, 2014.
- Allamandola, Louis et al. (April 13, 2011). "Cosmic Distribution of Chemical Complexity". NASA. Retrieved March 3, 2014.
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