Wikipedia:WikiProject Chemicals/Chembox validation/VerifiedDataSandbox and 1-Methylnaphthalene: Difference between pages

| Watchedfields = changed

| verifiedrevid = 477208119

| Reference = <ref>[http://msds.chem.ox.ac.uk/ME/1-methylnaphthalene.html 1-Methylnaphthalene] {{Webarchive|url=https://web.archive.org/web/20080513000638/http://msds.chem.ox.ac.uk/ME/1-methylnaphthalene.html |date=2008-05-13 }} at [[University of Oxford]]</ref>

| ImageFile1=1-Methylnaphthalene.svg

| ImageSize1=114px

| ImageFile2=1-Methylnaphthalene_3D.png

| PIN = 1-Methylnaphthalene

| OtherNames=α-methylnaphthalene

|Section1={{Chembox Identifiers

| Beilstein = 506793

| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

| ChEBI_Ref = {{ebicite|correct|EBI}}

| ChEMBL_Ref = {{ebicite|correct|EBI}}

| StdInChI_Ref = {{stdinchicite|correct|chemspider}}

| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}

| RTECS = QJ9630000

| UNNumber = 3082 1993

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = E7SK1Y1311

| EINECS= 201-966-8

| SMILES = Cc1cccc2cccc12

| PubChem = 7002

| InChI = 1/C11H10/c1-9-5-4-7-10-6-2-3-8-11(9)10/h2-8H,1H3

|Section2={{Chembox Properties

| Formula=C₁₁H₁₀

| MolarMass=142.20 g/mol

| Appearance=Liquid

| Density=1.001 g/mL

| MeltingPtC=-22

| BoilingPt={{convert|240|-|243|C|F K}}

| Solubility=

| MagSus = -102.8·10⁻⁶ cm³/mol

}}

|Section3={{Chembox Hazards

| MainHazards=

| FlashPtC = 82

| AutoignitionPtC =

| GHSPictograms = {{GHS07}}{{GHS08}}{{GHS09}}

| GHSSignalWord = Danger

| HPhrases = {{H-phrases|302|304|411}}

| PPhrases = {{P-phrases|264|270|273|301+310|301+312|330|331|391|405|501}}

}}

'''1-Methylnaphthalene''' is an [[organic compound]] with the formula C₁₁H₁₀. It is a colorless liquid. It is [[isomer]]ic with [[2-Methylnaphthalene|2-methylnaphthalene]].

==Reference fuel==

1-Methylnaphthalene defines the lower (zero) reference point of [[cetane number]], a measure of diesel fuel ignition quality, as it has a long ignition delay (poor ignition qualities). In contrast, [[cetane]], with its short ignition delay, defines the upper reference point at 100.<ref name="Speight2015">{{Cite book |last=Speight |first=James G. |title=Handbook of Petroleum Product Analysis. |date=2015 |publisher=Wiley |isbn=978-1-322-95015-0 |location=Hoboken, NJ |pages=158–159 |oclc=903318141}}</ref> In testing, [[isocetane]] (2,2,4,4,6,8,8-heptamethylnonane or HMN) replaced 1-methylnaphthalene as the low cetane number reference fuel in 1962 for reasons of better oxidation stability and ease of use in the reference engine. The scale is unchanged, as isocetane's cetane number is measured at 15, referenced to 1-methylnaphthalene and cetane.<ref name="Hannu">{{Cite tech report|first=Hannu|last=Jääskeläinen|title=Fuel Property Testing: Ignition Quality|year=2007|publisher=ECOpoint Inc.|work=DieselNet Technology Guide|url=https://dieselnet.com/tech/fuel_diesel_ignition.php|access-date=2021-02-24|archive-date=2019-06-26|archive-url=https://web.archive.org/web/20190626204319/https://www.dieselnet.com/tech/fuel_diesel_ignition.php|url-status=live}}</ref>

==Methylnaphthalene anion==

With alkali metals, 1-methylnaphthalene forms radical anion salts such as sodium 1-methylnaphthalene.

Compared to its [[structural analog]] [[sodium naphthalene]], sodium 1-methylnaphthalene is more soluble, which is useful for low-temperature reductions.<ref>{{cite journal|last1=Liu |first1=X. |last2=Ellis |first2=J. E. |title=Hexacarbonylvanadate(1−) and Hexacarbonylvanadium(0) |journal=Inorg. Synth.|date=2004 |volume=34 |pages=96–103 |doi=10.1002/0471653683.ch3| isbn=0-471-64750-0}}</ref>

==See also==

*{{section link|Naphthalene|Naphthalene in the interstellar medium}}

==References==

{{Reflist}}

==External links==

*[https://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=7002 PubChem Entry for 1-methylnaphthalene]

{{PAHs}}

{{DEFAULTSORT:Methylnaphthalene, 1-}}

[[Category:1-Naphthyl compounds]]

[[Category:Aromatic hydrocarbons]]

{{Organic-compound-stub}}