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Phenethyl Alcohol
Phenethyl alcohol, or 2-phenylethanol, is an organic compound with the chemical formula . It is a colourless liquid with a pleasant floral odor. It occurs widely in nature, being found in a variety of essential oils. It is slightly soluble in water (2 ml per 100 ml of ), but miscible with most organic solvents. The molecule of phenethyl alcohol consists of a phenethyl group () attached to a hydroxyl group (). Synthesis Phenethyl alcohol is prepared commercially via two routes. Most common is the Friedel-Crafts reaction between benzene and ethylene oxide in the presence of aluminium trichloride. : The reaction affords the aluminium alkoxide that is subsequently hydrolyzed to the desired product. The main side product is diphenylethane, which can be avoided by use of excess benzene. Hydrogenation of styrene oxide also affords phenethyl alcohol. Laboratory methods Phenethyl alcohol can also be prepared by the reaction between phenylmagnesium bromide and ethylene oxide: : : Phe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organic Compound
Some chemical authorities define an organic compound as a chemical compound that contains a carbon–hydrogen or carbon–carbon bond; others consider an organic compound to be any chemical compound that contains carbon. For example, carbon-containing compounds such as alkanes (e.g. methane ) and its derivatives are universally considered organic, but many others are sometimes considered inorganic, such as certain compounds of carbon with nitrogen and oxygen (e.g. cyanide ion , hydrogen cyanide , chloroformic acid , carbon dioxide , and carbonate ion ). Due to carbon's ability to catenate (form chains with other carbon atoms), millions of organic compounds are known. The study of the properties, reactions, and syntheses of organic compounds comprise the discipline known as organic chemistry. For historical reasons, a few classes of carbon-containing compounds (e.g., carbonate salts and cyanide salts), along with a few other exceptions (e.g., carbon dioxide, and even ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yeast
Yeasts are eukaryotic, single-celled microorganisms classified as members of the fungus kingdom (biology), kingdom. The first yeast originated hundreds of millions of years ago, and at least 1,500 species are currently recognized. They are estimated to constitute 1% of all described fungal species. Some yeast species have the ability to develop multicellular characteristics by forming strings of connected budding cells known as pseudohyphae or false hyphae, or quickly evolve into a Multicellular organism, multicellular cluster with specialised Organelle, cell organelles function. Yeast sizes vary greatly, depending on species and environment, typically measuring 3–4 micrometre, μm in diameter, although some yeasts can grow to 40 μm in size. Most yeasts reproduce asexual reproduction, asexually by mitosis, and many do so by the asymmetric division process known as budding. With their single-celled growth habit, yeasts can be contrasted with Mold (fungus), molds, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neroli
Neroli oil is an essential oil produced from the blossom of the bitter orange tree (''Citrus aurantium subsp. amara'' or ''Bigaradia''). Its scent is sweet, honeyed and somewhat metallic with green and spicy facets. Orange blossom is also extracted from the same blossom and both extracts are extensively used in perfumery. Orange blossom can be described as smelling sweeter, warmer and more floral than neroli. The difference between how neroli and orange blossom smell and why they are referred to with different names, is a result of the process of extraction that is used to obtain the oil from the blooms. Neroli is extracted by steam distillation and orange blossom is extracted via a process of enfleurage (rarely used nowadays due to prohibitive costs) or solvent extraction. Production The blossoms are gathered, usually by hand, in late April to early May. The oil is extracted by steam distillation. Tunisia, Morocco, and Egypt are the leading producers of neroli. History By ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelargonium
''Pelargonium'' () is a genus of flowering plants that includes about 280 species of perennial plant, perennials, succulent plant, succulents, and shrubs, common name, commonly called geraniums, pelargoniums, or storksbills. ''Geranium'' is also the botanical name and common name of a separate genus of related plants, also known as cranesbills. Both genera belong to the family Geraniaceae, and Carl Linnaeus originally included all the species in one genus, ''Geranium''; they were later separated into two genera by Charles Louis L'Héritier de Brutelle in 1789. While ''Geranium'' species are mostly temperate climate, temperate herbaceous plants, dying down in winter, ''Pelargonium'' species are evergreen perennials native plant, indigenous to warm temperate and tropical regions of the world, with many species in southern Africa. They are drought and heat tolerant but can tolerate only minor frosts. Some species are extremely popular garden plants, grown as houseplants and bedding ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ylang-ylang
''Cananga odorata'', known as ylang-ylang ( ) or cananga tree, is a tropical tree that is native to the Philippines, Malaysia, Indonesia, New Guinea, the Solomon Islands, and Queensland, Australia. It is also native to parts of Thailand and Vietnam. It is valued for the essential oils extracted from its flowers (also called "ylang-ylang"), which has a strong Floral scent, floral fragrance. Ylang-ylang is one of the most extensively used natural materials in the perfume industry, earning it the name "Queen of Perfumes". The climbing ylang-ylang vine, ''Artabotrys hexapetalus'' (synonym ''A. odoratissimus'') is a woody, evergreen climbing plant in the same family, which is also a source of perfume. Etymology and nomenclature The name ''ylang-ylang'' is the Philippine Spanish, Spanish spelling of the Tagalog language, Tagalog term for the tree, - a reduplication, reduplicative form of the word , meaning "wilderness", alluding to the tree's natural habitat. A common mistranslation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orange (fruit)
The orange, also called sweet orange to distinguish it from the bitter orange (''Citrus × aurantium''), is the fruit of a tree in the family (biology), family Rutaceae. Botanically, this is the hybrid Citrus × sinensis, ''Citrus'' × ''sinensis'', between the pomelo (''Citrus maxima'') and the mandarin orange (''Citrus reticulata''). The chloroplast genome, and therefore the maternal line, is that of pomelo. There are many related hybrids including of mandarins and sweet orange. The sweet orange has had its full Whole genome sequencing, genome sequenced. The orange originated in a region encompassing Northern and southern China, Southern China, Northeast India, and Myanmar; the earliest mention of the sweet orange was in Chinese literature in 314 BC. Orange trees are widely grown in tropical and subtropical areas for their sweet fruit. The fruit of the Citrus × sinensis, orange tree can be eaten fresh or processed for its juice or fragrant peel (fruit), peel. In 2022, 76 mil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aleppo Pine
''Pinus halepensis'', commonly known as the Aleppo pine, also known as the Jerusalem pine, is a pine native to the Mediterranean region. It was officially named by the botanist Philip Miller in his 1768 book ''The Gardener's Dictionary''; he probably never went to Aleppo but mentions seeing large specimens at Goodwood in the garden of the Duke of Richmond, which were transplanted (perhaps sent by Alexander Russell from Syria) in 1739. Description ''Pinus halepensis'' is a small to medium-sized tree, tall, with a trunk diameter up to , exceptionally up to . The bark is orange-red, thick, and deeply fissured at the base of the trunk, and thin and flaky in the upper crown. The leaves ('needles') are very slender, long, distinctly yellowish green, and produced in pairs (rarely a few in threes). The cones are narrow conic, long and broad at the base when closed, green at first, ripening glossy red-brown when 24 months old. They open slowly over the next few years, a process q ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyacinth (plant)
''Hyacinthus'' is a genus of bulbous herbs, and spring-blooming perennials. They are fragrant flowering plants in the family Asparagaceae, subfamily Scilloideae and are commonly called hyacinths (). The genus is native predominantly to the Eastern Mediterranean region from the south of Turkey to Northern Israel, although naturalized more widely. The name comes from Greek mythology: Hyacinth was killed by Zephyrus, the god of the west wind, jealous of his love for Apollo. He then transformed the drops of Hyacinth's blood into flowers. Several species of '' Brodiaea'', '' Scilla'', and other plants that have flower clusters borne along the stalk that were formerly classified in the Liliaceae family also have common names with the word "hyacinth" in them. Hyacinths should also not be confused with the genus ''Muscari'', which are commonly known as grape hyacinths. Description ''Hyacinthus'' grows from bulbs, each producing around 4-6 narrow untoothed leaves and 1-3 spikes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dianthus Caryophyllus
''Dianthus caryophyllus'' ( ), commonly known as carnation or clove pink, is a species of '' Dianthus'' native to the Mediterranean region. Its exact natural range is uncertain due to extensive cultivation over the last 2,000 years. Carnations are prized for their vibrant colors, delicate fringed petals, and fragrance. The scent of carnations is often described as spicy, clove-like, or reminiscent of a combination of cinnamon and nutmeg, hence the common name "clove pink". This aroma has made carnations a popular choice for use in perfumes, potpourri, and scented products. They have cultural significance and are associated with love, distinction, and motherly affection. With numerous cultivars and hybrids, carnations offer a wide variety of colors and forms, making them popular for gardens, floral arrangements, and scented products. Overall, carnations are enduring symbols of beauty and grace, treasured by flower enthusiasts and used to convey heartfelt emotions.Blamey, M. & ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rose Oil
Rose oil (rose otto, attar of rose, attar of roses, or rose essence) is an essential oil that is extracted from the petals of various types of rose. ''Rose ottos'' are extracted through steam distillation, while ''rose absolutes'' are obtained through solvent extraction, the absolute being used more commonly in perfumery. The production technique originated in Greater Iran. Even with their high price and the advent of organic synthesis, rose oils are still perhaps the most widely used essential oil in perfumery. ''R. damascena'' and ''R. centifolia'' Two major species of rose are cultivated for the production of rose oil: * '' Rosa damascena'' production today is dominated by 3 producers account for over 70% of the Rose oil market share: ** Bulgaria, sold as "Bulgarian Rose" ** Turkey, sold as "Turkish Rose" ** Saudi Arabia, sold as "Taif Rose" ** It is also grown on a smaller scale in Afghanistan, Armenia, Azerbaijan, Bosnia, Croatia, Cyprus, Ethiopia, Georgia, Greece, Jorda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iodine
Iodine is a chemical element; it has symbol I and atomic number 53. The heaviest of the stable halogens, it exists at standard conditions as a semi-lustrous, non-metallic solid that melts to form a deep violet liquid at , and boils to a violet gas at . The element was discovered by the French chemist Bernard Courtois in 1811 and was named two years later by Joseph Louis Gay-Lussac, after the Ancient Greek , meaning 'violet'. Iodine occurs in many oxidation states, including iodide (I−), iodate (), and the various periodate anions. As the heaviest essential mineral nutrient, iodine is required for the synthesis of thyroid hormones. Iodine deficiency affects about two billion people and is the leading preventable cause of intellectual disabilities. The dominant producers of iodine today are Chile and Japan. Due to its high atomic number and ease of attachment to organic compounds, it has also found favour as a non-toxic radiocontrast material. Because of the spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sodium Borohydride
Sodium borohydride, also known as sodium tetrahydridoborate and sodium tetrahydroborate, is an inorganic compound with the formula (sometimes written as ). It is a white crystalline solid, usually encountered as an aqueous basic solution. Sodium borohydride is a reducing agent that finds application in papermaking and dye industries. It is also used as a reagent in organic synthesis. The compound was discovered in the 1940s by H. I. Schlesinger, who led a team seeking volatile uranium compounds.Hermann I Schlesinger and Herbert C Brown (1945)Preparation of alkali metal compounds. US Patent 2461661. Granted on 1949-02-15; expired on 1966-02-15. Results of this wartime research were declassified and published in 1953. Properties The compound is soluble in alcohols, certain ethers, and water, although it slowly hydrolyzes. Sodium borohydride is an odorless white to gray-white microcrystalline powder that often forms lumps. It can be purified by recrystallization from warm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
