Talk:Naphtha

Untitled
crude petroleum, rock oil

simp.req
i need wikipedia to explain "certain hydrocarbons" in fuels because there it makes no reff to any hydrocarbon molecules chemistry and other sourcs. thank u!(rem after improving) 11:56, 19 June 2012‎ User:188.25.54.85

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)
 * please do not remove. it would best fit a disambiguation article but very same name could stay in, isnt it? 11:56, 19 June 2012‎ User:188.25.54.85

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)

The statement "In Poland, the "birthplace" of petroleum industry, word "nafta" means kerosene" was clearly added by a non-native English speaker (probably Polish, from the two missing definite articles). Poland is not the birthplace or even the "birthplace" of the petroleum industry, so I have cleaned this up.

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 ; 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)


 * Source on white naphtha? The Big Hoof! (talk) 21:19, 25 September 2013 (UTC)

Merge
Petroleum naphthaand Coleman fuel here? — Preceding unsigned comment added by Vorpzn (talk • contribs) 11:59, 13 February 2018 (UTC)


 * Oppose all. Petroleum naphtha and Coleman fuel are independent topics, with recognisable scope and name, and independent sourcing to support WP:N.  There is overlap, but we can cover that by overlap in the articles (which isn't a problem) or even duplicating some text between articles (which isn't a problem). I do not see that we gain better explanations of those topics by merging them into here. Andy Dingley (talk) 12:10, 13 February 2018 (UTC)
 * Oppose. While these are both naphtha, one is naphtha from a particular source, the other a particular brand, both pages seem to have enough information to justify separate articles.  If they were merged in full there would be some WP:UNDUE issues. SpinningSpark 17:30, 13 February 2018 (UTC)

Naptha can have mineral and biological sources. My understanding is that naptha should burn with little smoke. It must not contain aromatic (e.g. benzene) nor alkene (unsaturated) substances. They burn with black smoke. Zippo fluid appears to make a slight amount of black smoke if you look closely.14.203.207.166 (talk) 00:18, 3 May 2018 (UTC)

Apparent copyvio?
Can anyone please point me at the apparent copyvio which has just been removed? I can't see it.

Also, as this change was a merge from another article, isn't it going to (if it's a copyvio) need cleanup at that article too? Andy Dingley (talk) 13:34, 13 February 2018 (UTC)


 * I reported what appeared to be a copyvio to admin Diannaa here. She said: "It looks like the user merged the content from Petroleum naphtha and the data at Eagle Petrochem was copied from Wikipedia rather than the other way around. The user has done multiple undiscussed merges, all of which have now been undone. There's a thread at Administrators' noticeboard." Carlstak (talk) 13:54, 13 February 2018 (UTC)

Conversion error
In the health and safety section it says, "100 ppm (400 mg/m³)" in two different places. One of those two numbers is wrong because 100ppm = 100000 mg/m³ I don't want to change it because I don't know which number is wrong.

I see that the CDC pamphlet is the author's source but the CDC is wrong. Google it or look at this, one of the many auto-converters online: https://www.justintools.com/unit-conversion/density.php?k1=parts-per-million&k2=grams-per-cubic-meter

To avoid confusion perhaps it should also note that these numbers are for ppm in air which is usually done in the format of 100 ppm (air).

(I used to write these MSDS things.)

Rengewwj (talk) 14:39, 9 January 2020 (UTC)

"literally hoi polloi"
Article suggests that document "Macabees" contains a word translated as "many" (literally hoi polloi).

"those around Nehemiah termed this 'Nephthar', which means Purification, but it is called Nephthaei by the many [literally hoi polloi]."[5]

But Macabees was written in Hebraic. It seems odd to use the word "literally" to describe the term used in the Septuagint: there is no reason to think that the Greek term is any more "literal" than its English translation. — Preceding unsigned comment added by 101.188.12.219 (talk) 02:12, 31 May 2020 (UTC)

The origin of the word
The origin Middle Persian is impossible since the use of Ancient Greek ended 300 BC and Middle Persian was used between 100 BC until the 11. century. --2A02:908:890:EFC0:D4E8:140A:11A:BA64 (talk) 22:10, 9 October 2022 (UTC)

Petroleum naphta
Apart from the fact that neft etc is used to denote any crude in some languages I thought that naphta was specifiacally used to denote crudes high in alicyclic components. 150.227.15.253 (talk) 13:12, 1 November 2022 (UTC)

Fels-Naptha soap
Re:

"Fels-Naptha is an American brand of laundry soap manufactured by Summit Brands. It originally included the ingredient naphtha, effective for cleaning laundry and urushiol, an oil contained in poison ivy. Naphtha was later removed as a cancer risk."

I can't find any evidence for the claim that Fels-Naptha (note the single "h") soap used to have Naphtha (note the two "h"s) in it, when it was removed, or why it was removed. The current citation is a comment on a blog, not a reliable source. This may be an urban myth. Can anyone find a source for this claim? If not, it should be removed per WP:V. --Guy Macon Alternate Account (talk) 02:30, 21 March 2024 (UTC)