Pine oil
 Pine (Pinus sylvestris) essential oil in a clear glass vial
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| Names | |
|---|---|
| Other names
Essential oil of pine
Yarmor | |
| Identifiers | |
| 8191505 | |
| ChemSpider |
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| ECHA InfoCard | 100.219.894 |
| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| Mixture | |
| Appearance | Colorless to pale yellow liquid |
| Density | 0.875 g/cm3 at 25 °C (approximate) |
| Melting point | 5 °C (41 °F; 278 K) |
| Boiling point | 195 °C (383 °F; 468 K) |
| Insoluble | |
| log P | 1.7 |
| Vapor pressure | 4 mmHg |
| Hazards | |
| NFPA 704 (fire diamond) | |
| Flash point | 65 °C (149 °F; 338 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Pine oil is an essential oil obtained from a variety of species of pine, particularly Pinus sylvestris. Typically, parts of the trees that are not used for lumber — stumps, etc. — are ground and subjected to steam distillation.[2] As of 1995, synthetic pine oil was the "biggest single turpentine derivative."[3] Synthetic pine oils accounted for 90% of sales as of 2000.[4]
Composition
[edit]Pine oil is a higher boiling fraction from turpentine. Both synthetic and natural pine oil consists mainly of α-terpineol, a C10 alcohol (b.p. 214–217 °C).[5][1] The detailed composition of natural pine oil depends on many factors, such as the species of the host plant.[6] Synthetic pine oil is obtained by treating pinene with water in the presence of a catalytic amount of sulfuric acid. This treatment results in hydration of the alkene and rearrangement of the pinene skeleton, yielding terpineols.[4]
Uses
[edit]Industrially, pine oil was once used in froth flotation for the separation of mineral from ores.[1] For example, in copper extraction, pine oil is used to condition copper sulfide ores for froth flotation.
It is also used as a lubricant in small and expensive clockwork instruments.
In alternative medicine it is used in aromatherapy and as a scent in bath oils.
Properties as a disinfectant
[edit]Pine oil is used as a cleaning product, disinfectant, sanitizer, microbicide (or microbistat), virucide or insecticide.[5] It is an effective herbicide where its action is to modify the waxy cuticle of plants, resulting in desiccation.[7] Pine oil is a disinfectant that is mildly antiseptic.[8] It is effective against Brevibacterium ammoniagenes, the fungi Candida albicans, Enterobacter aerogenes, Escherichia coli, Gram-negative enteric bacteria, household germs, Gram-negative household germs such as those causing salmonellosis, herpes simplex types 1 and 2, influenza type A, influenza virus type A/Brazil, influenza virus type A2/Japan, intestinal bacteria, Klebsiella pneumoniae, odor-causing bacteria, mold, mildew, Pseudomonas aeruginosa, Salmonella choleraesuis, Salmonella typhi, Salmonella typhosa, Serratia marcescens, Shigella sonnei, Staphylococcus aureus, Streptococcus faecalis, Streptococcus pyogenes, and Trichophyton mentagrophytes.[5]
Safety
[edit]Pine oil has a relatively low human toxicity level, a low corrosion level and limited persistence; however, it irritates the skin and mucous membranes and has been known to cause breathing problems.[8][9] Large doses may cause central nervous system depression.[1]
See also
[edit]- List of cleaning products
- Dettol antiseptic liquid
- Pine-Sol, cleaning product that originally contained pine oil, though it switched to a different active ingredient in 2013 due to the declining availability of pine oil
References
[edit]- ^ a b c d Merck Index, 11th Edition, 7416. p. 1182
- ^ Boyle, Hal (September 12, 1954). "There's Gold in those Pine Stumps". Sarasota Journal. p. 11.
- ^ Chapter 1. Production trade and markets. Rome: Food and Agriculture Organization. 1995. ISBN 978-9251036846.
{{cite book}}:|work=ignored (help) - ^ a b Gscheidmeier, Manfred; Fleig, Helmut (June 15, 2000). "Turpentines, 16. Pine Oil". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a27_267. ISBN 978-3527306732.
- ^ a b c "Reregistration Decision – Pine oil (case 3113)" (PDF). Environmental Protection Agency. October 2006.
- ^ Macchioni, F.; Cioni, P. L.; Flamini, G.; Morelli, I.; Maccioni, S.; Ansaldi, M. (2003-03-01). "Chemical Composition of Essential Oils from Needles, Branches and Cones of Pinus pinea, P. halepensis, P. pinaster and P. nigra from Central ltaly". Flavour and Fragrance Journal. 18 (2): 139–143. doi:10.1002/ffj.1178. ISSN 1099-1026.
- ^ Coleby-Williams, Jerry (April 9, 2004). "Fact Sheet: Organic Weed Control". Gardening Australia. Retrieved August 28, 2016.
- ^ a b "Pine Oil". PDRhealth. 2003. Archived from the original on 2007-09-21.
- ^ "Pine Oil Poisoning". Medlineplus.gov. Retrieved August 28, 2016.
Further reading
[edit]- Gscheidmeier, Manfred; Fleig, Helmut (June 15, 2000). "Turpentines". Turpentines, 16. Pine Oil. doi:10.1002/14356007.a27_267. ISBN 978-3527306732.
{{cite book}}:|work=ignored (help) - "8". TURPENTINE FROM PINE RESIN. Rome: Food and Agriculture Organization. 1995. ISBN 978-92-5-103648-8. Archived from the original on January 17, 2011.
{{cite book}}:|work=ignored (help)