Turpentine oil

Описание

Turpentine oil is a kind of fluid isolated from live trees, mainly pines. It consists of terpenes including monoterpenes, alpha-pinene, beta-pinene and some amount of careen, camphene, dipentene, and terpinolene. It can be used as a solvent and as a source of materials for organic synthesis. For its application in solvent, it can be used for thinning oil-based paints that are useful for the manufacturing of varnishes. In organic synthesis, it can be used for the synthesis of fragrant chemical compounds such as camphor, linalool and alpha-terpineol. It can also be used for large-scale synthesis of bundles of aligned carbon nanotubes. It can also be used as natural flavoring agent as food additive. Moreover, it can be used to synthesize pesticide as well as be used to facilitate the endodontic retreatment.

Химические свойства

Turpentine is oleorosin extracted from trees of pinus (pinacae). It is a yellowish, opaque, sticky mass with a characteristic odor and taste. It is used extensively in different industries associated with the manufacturing of polishes, grinding fl uids, paint thinners, resins, degreasing solutions, clearing materials, and ink making.

The two primary uses of turpentine in industry are as a solvent and as a source of materials for organic synthesis. As a solvent, turpentine is used for thinning oil-based paints for producing varnishes and as a raw material in the chemical industry.

Физические свойства

Turpentine is the oleoresin from species of Pinus Pinacea trees. The crude oleoresin (gum turpentine) is a yellowish, sticky, opaque mass and the distillate (oil of turpentine) is a colorless, volatile liquid with a characteristic odor. Chemically, it contains: alpha-pinene; betapinene; camphene, monocyclic terpene; and terpene alcohols.

Использование

Oil of turpentine is primarily used as a solvent for industrial applications, such as thinner for paints and varnishes. Preparation of carbon nano-spheres (CNSs) by decomposition of turpentine oil has been reported.

Методы производства

Gum turpentine is the steam-volatile fraction of pine tree pitch.Wood turpentine is obtained from waste wood chips or sawdust. Sulfate turpentine is a by-product in paper manufacture.

Общее описание

A clear colorless liquid with a characteristic odor. Flash point 90-115°F. Obtained from naphtha-extraction of pine stumps. Less dense than water and insoluble in water. Hence floats on water. Vapors are heavier than air.

Реакции воздуха и воды

Highly flammable. Insoluble in water.

Профиль реактивности

WOOD TURPENTINE reacts with oxidizing agents. Calcium hypochlorite was placed in a turpentine container, thought to be empty. Reaction with the residual turpentine resulted in an explosion within a few minutes [Benson 1967]. Reacts violently with chromic anhydride [Haz. Chem. Data 1967 p. 68]. Reacts with stannic chloride producing heat and sometimes flame [Mellor 7:430 1946-47]. May also react exothermically with reducing agents to produce gaseous hydrogen.

Угроза здоровью

Occupational exposures to turpentine cause adverse health effects on absorption through the skin, lungs, and intestine. The vapor of turpentine causes severe irritation to the nose, eyes, and respiratory system has a whole. Aspiration of liquid turpentine causes direct irritation to the lungs and results in pulmonary edema and hemorrhage. It also causes dermatitis, eczema, and hypersensitivity among occupational workers. Splashing of liquid turpentine in the eyes causes corneal burns. Turpentine is also known to cause skin eruption, irritation to the gastrointestinal tract, kidney and bladder damage, delirium, ataxia, and benign skin tumor.

Профиль безопасности

An experimental poison by intravenous route. Moderately toxic to humans by ingestion. Mildly toxic experimentally by ingestion and inhalation. Human systemic effects by ingestion and inhalation: conjunctiva irritation, other olfactory and eye effects, hallucinations or distorted perceptions, antipsychotic, headache, pulmonary, and kidney changes. A human eye irritant. Irritating to skin and mucous membranes. Can cause serious irritation of kidneys. Questionable carcinogen with experimental tumorigenic data. A common air contaminant. A very dangerous fire hazard when exposed to heat or flame; can react vigorously with oxidizing materials. Avoid impregnation of combustibles with turpentine. Keep cool and ventilated. Spontaneous heating is possible. Moderate explosion hazard in the form of vapor when exposed to flame; can react violently with Ca(OCl)2, Cl2, CrO3, Cr- (OCl)2, SnCl4, hexachloromelamine, trichloromelamine. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes.

Возможный контакт

Turpentines have found wide use as chemical feedstock for the manufacture of floor, furniture, shoe, and automobile polishes; camphor, cleaning materials; inks, putty, mastics, cutting and grinding fluids; paint thinners; resins, and degreasing solutions. Recently, alpha-and beta-pinenes, which can be extracted, have found use as volatile bases for various compounds. The components d-α-pinene and 3-carene, or their hydroperoxides, may be the cause of eczema and toxic effects of turpentine.

Канцерогенность

When turpentine was applied to the skin, tumor growth was promoted in the rabbit, but not in the mouse.

Перевозки

UN1299 Turpentine, Hazard Class: 3; Labels: 3- Flammable liquid.

Несовместимости

Forms an explosive mixture with air. Violent reaction with strong oxidizers, especially chlorine; chromic anhydride; stannic chloride; chromyl chloride.

Утилизация отходов

Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.

Меры предосторожности

During handling of turpentine, occupational workers should always use protective clothing, rubber gloves, and face masks to avoid adverse health effects to the skin and respiratory tract.

использованная литература

Kalpana Awasthi, et al. "Large scale synthesis of bundles of aligned carbon nanotubes using a natural precursor: turpentine oil." Journal of Experimental Nanoscience 5.6(2010):498-508.
Bai, Yun. "The general situation of flavor from turpentine oil." China Food Additives (2006).
Pakdel, H, S. Sarron, and C. Roy. "alpha-Terpineol from hydration of crude sulfate turpentine oil. " Journal of Agricultural & Food Chemistry 49.9(2001):4337-41.
Dong-Mei, L. I., et al. "Study on synthesis of high purity α-terpineol from turpentine oil." Modern Chemical Industry (2008).
Armstrong, Henry E. "XXXV.—Studies of the terpenes and allied compounds. The nature of turpentine oils, including that obtained from Pinus khasyana." Journal of the Chemical Society Transactions 59:311-315.
Guilbert, J., et al. "Anti-flatulence treatment and status epilepticus: a case of camphor intoxication." Emergency Medicine Journal Emj 24.12(2007):859.
Qin, Lang, and Y. M. Wang. "Application of Turpentine Oil in Synergist and Pesticide and Its Progress." Fine & Specialty Chemicals (2005).
Kaplowitz, G. J. "Clinical uses of rectified turpentine oil." International Endodontic Journal 29.2(1996):93.