Naphtha is obtained from petroleum refineries as a small percentage (around 4%) of the distillation of crude oil. It is an intermediate between the lighter gasoline and the heavier benzine. Naphtha has a specific gravity of about 0.7. The generic name naphtha describes a range of different refinery cuts used in the different applications. To further complicate the matter similar naphtha types are often referred to by different names.
The different naphthas are distinguished by:
density (kg/m3 or specific gravity)
PONA or PIONA analysis, which measures (usually in volume percent but can also be in weight percent):
Paraffin content (volume percent)
Isoparaffin content (only in a PIONA analysis)
Olefins content (volume percent)
Naphthenes content (volume percent)
Aromatics content (volume percent)
2006-07-18 09:23:15
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answer #1
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answered by littleone_ky2wa 4
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Funny, I used to buy Coleman fuel because Naptha was more expensive. Used both to wipe down cars as a final prep step before painting in a custom body-shop.
2016-03-13 04:41:37
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answer #2
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answered by Anonymous
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What Is Naptha
2016-12-16 13:17:28
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answer #3
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answered by levy 4
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Naphtha is a group of various volatile flammable liquid hydrocarbon mixtures used primarily as feedstocks in refineries for the reforming process and in the petrochemical industry for the production of olefins in steam crackers. It is also used in solvent applications in the chemical industry.
I believe its also whats used in Camping Stoves like Gas powered Coleman Stoves so you might be able to find it at like a big-5 or Wal-Mart.
2006-07-18 09:22:25
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answer #4
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answered by bombhaus 4
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This Site Might Help You.
RE:
What is Naptha Gas? and where can i get it?
2015-08-07 04:04:15
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answer #5
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answered by Anonymous
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Naphtha gas is a group of volatile flammable liquid mixture composed of various hydrocarbons. It is used in petrochemical industry, as well as chemical industry as a solvent. An example of naphtha is shellite, known as "white gas." Naphthas are highly flammable, and you should not purchase them if you are not going to use them in proper laboratory or industry environments. I believe these kinds of solvents can be purchased from big chemical supply companies like Argo Chemical. However, i'm sure they don't supply to regular customers. I think they only sell to labs and other industrial places wholesale...
2006-07-18 09:24:34
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answer #6
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answered by Annie 4
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Naphtha is a group of various volatile flammable liquid hydrocarbon mixtures used primarily as feedstocks in refineries for the reforming process and in the petrochemical industry for the production of olefins in steam crackers. It is also used in solvent applications in the chemical industry.
Contents
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* 1 Production of naphtha in refineries and uses
o 1.1 Paraffinic naphthas
o 1.2 Heavy naphthas
o 1.3 Other applications / descriptions
* 2 Examples
* 3 Etymology
* 4 See also
* 5 External links
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Production of naphtha in refineries and uses
Naphtha is obtained from petroleum refineries as a small percentage (around 4%) of the distillation of crude oil. It is an intermediate between the lighter gasoline and the heavier benzine. Naphtha has a specific gravity of about 0.7. The generic name naphtha describes a range of different refinery cuts used in the different applications. To further complicate the matter similar naphtha types are often referred to by different names.
The different naphthas are distinguished by:
* density (kg/m3 or specific gravity)
* PONA or PIONA analysis, which measures (usually in volume percent but can also be in weight percent):
o Paraffin content (volume percent)
o Isoparaffin content (only in a PIONA analysis)
o Olefins content (volume percent)
o Naphthenes content (volume percent)
o Aromatics content (volume percent)
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Paraffinic naphthas
Generally speaking, less dense ("lighter") naphthas will have a higher paraffin content. These are therefore also referred to as paraffinic naphtha. The main application for these naphthas is as a feedstock in the petrochemical production of olefins. This is also the reason they are sometimes referred to as "light distillate feedstock" or LDF (these naphtha types can also be called "straight run gasoline"/SRG or "light virgin naphtha"/LVN).
When used as feedstock in petrochemical steam crackers, the naphtha is heated in the presence of water vapour and the absence of oxygen or air until the hydrocarbon molecules fall apart. The primary products of the cracking process are olefins (ethylene / ethene, propylene / propene and butadiene) and aromatics (benzene and toluene). These are used as feedstocks for derivative units that produce plastics (polyethylene and polypropylene for example), synthetic fiber precursors (acrylonitrile), industrial chemicals (glycols for instance).
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Heavy naphthas
The "heavier" or rather denser types are usually richer in naphthenes and aromatics and therefore also referred to as N&A's. These can also be used in the petrochemical industry but more often are used as a feedstock for refinery catalytic reformers where they convert the lower octane naphtha to a higher octane product called reformate. Alternative names for these types are Straight Run Benzene (SRB) or Heavy Virgin Naphtha (HVN).
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Other applications / descriptions
Naphthas are also used in other applications such as
* (as an unprocessed component - in contrast to reforming above) in the production of petrol/motor gasoline.
* as industrial solvents and cleaning fluids
* as an oil painting medium
* as the sole ingredient in the home cleaning fluid Energine
* as an ingredient in shoe polish
* as an ingredient in some lighter fluids for wick type lighters such as Zippo lighters.
* as an adulterant to petrol
* as a fuel for portable stoves and lanterns, sold in North America as white gas or Coleman fuel.
* historically, as a probable ingredient in Greek fire (together with grease, oil, sulfur, and naturally occurring saltpeter from the desert)
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Examples
Shellite (Australia), also known as white gas (North America), white spirit or Coleman fuel, is a water white liquid with a hydrocarbon odour. Shellite has a flashpoint less than -30 degrees Celsius, and a boiling point of 47 degrees Celsius. The composition of shellite is 95% paraffins and naphthenes, less than 5% aromatic hydrocarbons and less than 0.5% benzene. It is highly flammable and due to its low flashpoint is used in many low pressure camping stoves. Shellite is also a fast drying solvent used for cleaning metal, hard plastic and painted surfaces.
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Etymology
The origin of the word Naphtha is unclear. It is an Ancient Greek word which was used to refer to any sort of petroleum or pitch. The Greeks themselves borrowed the word from the Old Persian words nafata, naft or neft, which were used to describe bubbling oil. Naphtha may also have been derived from the name of the Vedic Hindu and Avestic god Apam Napat, a form of Agni, or fire god.
Naptha is the root of the word naphthalene, from which the word napalm is derived.
2006-07-18 09:24:54
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answer #7
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answered by ? 3
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What Is Naphtha
2016-10-03 09:33:34
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answer #8
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answered by mish 4
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