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White spirit (AU, UK and Ireland)Primarily in the United Kingdom and Australia. In New Zealand "white spirit" can also refer to (). or mineral spirits (US, Canada), also known as mineral turpentine (AU/NZ/ZA), turpentine substitute, and petroleum spirits, is a -derived clear liquid used as a common organic in painting. There are also terms for specific kinds of white spirit, including Stoddard solvent and solvent naphtha ( petroleum). White spirit is often used as a , or as a component thereof, though paint thinner is a broader category of solvent. Odorless mineral spirits ( OMS) have been refined to remove the more toxic , and are recommended for applications such as .

A mixture of aliphatic, or C7 to C12 , white spirit is insoluble in water and is used as an extraction solvent, as a cleaning solvent, as a degreasing solvent and as a solvent in , , wood preservatives, , , and products. In western Europe about 60% of the total white spirit consumption is used in paints, lacquers and varnishes. White spirit is the most widely used solvent in the paint industry. In households, white spirit is commonly used to clean paint brushes after use, to clean auto parts and tools, as a for charcoal grills, to remove adhesive residue from non-porous surfaces, and many other common tasks.

The word "mineral" in "mineral spirits" or "mineral turpentine" is meant to distinguish it from distilled spirits (alcoholic beverages distilled from fermented biological material) or from true (distilled tree resin, composed mostly of ). This substance is not edible, despite the name "spirits" potentially drawing confusion with , and consumption would result in acute and chronic adverse effects on human health.


Types and grades
Three different types and three different grades of white spirit exist. The type refers to whether the solvent has been subjected to hydrodesulfurization (removal of sulfur) alone (type 1), solvent extraction (type 2) or (type 3).

Each type comprises three grades: low flash grade, regular grade, and high flash grade ( flash refers to ). The grade is determined by the used as the starting material and the conditions of distillation.

In addition there is type 0, which is defined as distillation fraction with no further treatment, consisting predominantly of saturated C9 to C12 hydrocarbons with a boiling range of .

Stoddard solvent is a specific mixture of hydrocarbons, typically over 65% C10 or higher hydrocarbons, developed in 1924 by Atlanta W. J. Stoddard and Lloyd E. Jackson of the Mellon Institute of Industrial Research as a less flammable petroleum-based dry cleaning solvent than the petroleum solvents then in use.

(2025). 9781605907253, Government Institutes.
Dry cleaners began using the result of their work in 1928 and it soon became the predominant dry cleaning solvent in the United States, until the late 1950s.

Turpentine substitute is generally not made to a standard and can have a wider range of components than products marketed as white spirit, which is made to a standard (in the UK, BS 245, in Germany,  51632). Turpentine substitute can be used for general cleaning but is not recommended for paint thinning as it may adversely affect drying times due to the less volatile components; while it may be used for brush cleaning its heavier components may leave an oily residue.


Chemical registry numbers
European Chemical Agency: Committee for Risk Assessment, "Annex 1 – Background document to RAC opinion on white spirit", p. 5, adopted 10 June 2011.


Physical properties
Type 1 white spirit is mainly used in most of Europe and Stoddard solvent is used in the US, both of which correspond to each other.
+White spirit types 1–3 physical properties !Property !T1: Low flash !T2: Regular !T3: High flash
IBP+, max.
160
0.795
>
0.1
0.04
0.6–8
4.5–5
1.41–1.44
0.74–1.65
< 0.1
29–33
reaction with strong oxidizing agents
4


Use

Degreasing and lubricating
In industry, white spirit is used for cleaning and machine tools and parts, and in conjunction with as a thread cutting and .

White spirit is commonly used for cutting fluid in ultraprecision lathes (commonly referred to as machines).

White spirit is used for regripping golf clubs. After the old grip is removed, the white spirit is poured into the new grip and shaken. After the white spirit is poured on, the new underlying tape and the new grip are slid on. After an hour of drying out, the new grip and club are ready to use.


Solvent and paint thinner
White spirit is a used as a and mild .

White spirit is an inexpensive -based replacement for the -based . It is commonly used as a paint thinner for oil-based and cleaning brushes, and as an in other applications. Mineral turpentine is chemically very different from turpentine, which mainly consists of , and it has inferior solvent properties.Dieter Stoye “Solvents” in Ullmann's Encyclopedia of Industrial Chemistry2002, Wiley-VCH, Wienheim. Artists use white spirit as an alternative to turpentine since it is less flammable and less toxic. Because of interactions with pigments in , artists require a higher grade of white spirit than many industrial users, including the complete absence of residual sulfur.

White spirit was formerly an active ingredient in the laundry soap , used to dissolve oils and grease in laundry stains, and as a popular remedy for eliminating the irritant oil in . It was removed as a potential health risk.

White spirit has a characteristic unpleasant -like odor. Chemical manufacturers have developed a low odor version of mineral turpentine which contains less of the highly volatile shorter hydrocarbons. Odorless mineral spirits is white spirit that has been further refined to remove the more toxic , and is recommended for applications such as oil painting, where humans have close contact with the solvent.

In (also referred to as silk-screening), white spirit is often used to clean and unclog screens after printing with oil-based textile and inks. It is also used to thin inks used in making .

White spirit is often used inside liquid-filled compasses and gauges.

White spirits are a major ingredient in some popular automotive fuel/oil additives, such as Marvel Mystery Oil, as they are capable of dissolving varnish and sludge buildup.


Portable lanterns and stoves
Although white spirit is sometimes used as an alternative to camp fuel, such as , in portable and , this is highly inadvisable as typical grades of white spirit have a lower flash point than kerosene. It cannot be used as an alternative to , which is a much more volatile gasoline-like fuel.


Other
White spirit is a contact , such as used by the Pachaug State Forest circa 1970. Mineral spirits helped control in seedbeds, but were not effective on all kinds, had no residual effect, required repeated applications dangerous to seedlings, and extensive hand-weeding was still needed.


Toxicity
White spirit is mainly classed as an . It has a fairly low acute toxicity by inhalation of the vapour, dermal (touching the skin) and oral (ingestion) routes. However, acute exposure can lead to central nervous system depression resulting in lack of coordination and slowed reactions. Exposure to very high concentrations in enclosed spaces can lead to general effects (drowsiness, dizziness, nausea, etc.) and can eventually lead to unconsciousness. Oral ingestion presents a high aspiration hazard. Prolonged or repeated skin exposure over a long period of time can result in severe irritant , also called contact dermatitis.

Continuous exposure to an average white spirit concentration of 240 mg/m3 (40 ppm) for more than 13 years can lead to chronic central nervous system effects. Similar long-term studies have been made in which some of the observed effects included , poor concentration, increased etc. White spirit is implicated in the development of chronic toxic encephalopathy (CTE) among house painters. In severe cases CTE may lead to disability and personality changes. These effects in painters were first studied in the 1970s in the Nordic countries.

Owing to the volatility and low of its constituents, white spirit, although it is moderately toxic to aquatic organisms, is unlikely to present significant hazards to the environment. It should not however, be purposely poured down the sink or freshwater drain.

People can be exposed to Stoddard solvent in the workplace by breathing it in, swallowing it, skin contact, and eye contact. The Occupational Safety and Health Administration (OSHA) has set the legal limit (permissible exposure limit) for Stoddard solvent exposure in the workplace as 500 ppm (2900 mg/m3) over an 8-hour workday. The National Institute for Occupational Safety and Health (NIOSH) has set a recommended exposure limit (REL) of 350 mg/m3 over an 8-hour workday and 1800 mg/m3 over 15 minutes. At levels of 20,000 mg/m3, Stoddard solvent is .


See also
  • , a combination of aliphatic hydrocarbons C5–C12
  • , a form of white gas used as a stove fuel


Footnotes

External links

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