Talk:Naphtha

crude petroleum, rock oil

The Band

I noticed the following was added to this article. It really is not relevent to the subject matter presented.

Naphtha is also a band from Kennesaw, Georgia.
They play local shows and are working on getting signed

I would suggest creating a separate article. Grundle 15:02, 19 May 2006 (UTC)

Can only add an article if the band is notable. WP cannot be used to gain oublicity. David Spector (talk) 18:01, 1 October 2011 (UTC)

naptha

isn't the title spelt wrong? should be naptha, not naphtha.

ah sorry, it is naphtha.. woops

naphtha :- can we use light naphtha produced from distillation towr as feed stock cat. reforming unit to obtain gaso;ine with high octan number —Preceding unsigned comment added by 84.54.26.249 (talk • contribs)

Air Sampling for Naphtha Section

Something is crazy about the way the code for this section is rendered. If you look at the references, you see that some of the material from the article has been translated into references. Much of the material, particularly in the "Active Air Sampling Method..." section is not visible in the article at all, even though it is in the code.

If you try to edit parts of the Air Sampling section, you are shown parts of the article toward the front.

The DiNardi reference is wierdified.

I have been trying to straighten this out for several hours, and I am stumped.

I've removed the Air Sampling section for the time being. It was obviously a cut & paste from an OSHA-type technical document, and is WAY too specialized, technical and long for an encyclopedic article. None of the information contained therein would be useful or intelligible to the average reader. The content would be better placed in an article about air sampling. If someone feels a mention must stay in this article, then at least greatly condense it. One arguably unimportant subsection should not constitute over 90% of the article's content.

In short, the technical nature, and sheer length of that section greatly detracts from the article's readability and overall quality, and it needed to go. 97.82.247.200 00:28, 11 September 2007 (UTC)

cleanup

There is some useful information in here, but the readability is nil in this state:

white spirit (though in the UK white spirit is something completely different), Ligroin; VM&P Naphtha (CAS No. 64742-89-8); Varnish Makers and Painter's Naphtha [1]; Benzin; Petroleum Naphtha, Naphtha ASTM, Petroleum Spirits, Shellite, Ronsonol, Energine; not to be confused with Naphthalene) is a group of various liquid hydrocarbon intermediate refined products of varying boiling point ranges from 20 to 75 °C (68 to 167 °F), which may be derived from oil or from coal tar, and perhaps other primary sources.

I've removed to here until either I have a chance to re-write or someone else does. - IstvanWolf (talk) 21:32, 9 January 2008 (UTC)

molecular weight, specific gravity and boiling point ranges

The molecular weight, specific gravity and boiling point ranges are suspect, as is the indicated vapor pressure. While not overly familiar with any aromatic naptha mixtures, at least some, lighter, so-called parafinic napthas or petroleum ethers (mixtures similar to hexanes) will have boiling points below 100°C (212°F) and densities < 0.7 g/ml. Also n-pentane and n-hexane have 72 and 86 mol wts respectively. A specific reference might benefit this section.

See also: "Examples in daily life" section below describing physical properties of Shellite. —Preceding unsigned comment added by 172.164.39.48 (talk • contribs)

We also now have two different specific gravities. "0.75-0.85 g/cm³" and "0.7". I think we need to make a single statement. Also, I believe "specific gravity" should be dimensionless and either the first reference should be called density or divided by 1 g/cm³ (the standard weight of water) yielding a dimensionless quantity. -- Bdentremont (talk) 13:17, 19 August 2009 (UTC)

VM&P

The common designation "VM&P" naphtha stands for "varnish makers' and painters'". I don't see where I can gracefully add this bit of practical information. Cstaffa (talk) 04:25, 11 August 2008 (UTC)

I added it, awkward as it may be, since that was the precise bit of information I was looking for. I forgot to log in first, but that was me. Lg king (talk) 11:52, 15 July 2009 (UTC)

Naptha as cleaning fluid

• I'm fairly confident that Naptha is a chemical that was once used for the process of dry cleaning in the earlier part of the 20th century. I don't believe that this (fact?) is mentioned anywhere in the present article, where it might be included under "other applications." —Preceding unsigned comment added by 12.25.190.101 (talk) 02:55, 12 June 2009 (UTC)

Naphtha

A term 'lipid-soluble' chemical is used in Health Hazards section. I feel the term should be 'lipid-dissolving' chemical, since fat dissolved, for example by Naphtha, can cause de-fatting of skin or tissue. Since lipids can not be seen as solvent for Naphtha (it being the other way round, i.e. naphtha dissolving lipids), the term should be replaced or modified.

(Dheknesn (talk) 08:23, 21 December 2009 (UTC))

Brands

• There seems to be a lot of "name dropping" going on in this article (specifically mentioning brand names in place of the chemical's name). An example would be the section which mentions naptha's use as lighter fluid. Perhaps the more conversant inclusion of chemical names in place of brand names would help to present the subject matter in a more encyclopedic fashion. bwmcmaste (talk) 03:40, 12 January 2010 (UTC)

contradicting statement

The "heavier" or rather denser types are usually richer in naphthenes and aromatics and therefore also referred to as N&As.

Heavy naphtha, a mixture consisting mainly of straight-chained and cyclic aliphatic hydrocarbons having from seven to nine carbons per molecule.

To me the 2 above statements contradict each other. Are heavy naphtha mostly made up of aromatic or aliphatic? I think the second statement should say... aromatic... but I'm not a chemist so I don't know the right answer—Preceding unsigned comment added by 96.252.12.31 (talk) 22:21, 18 October 2010 (UTC)

white naphtha

The article fails to mention "white naphtha", a stain remover. That's all I know, which isn't enough info.

Some soaps contain "naphtha". What does that mean exactly? David Spector (talk) 17:59, 1 October 2011 (UTC)