Products Stearic acid is available as a pure substance in pharmacies and drugstores. The name “stear” comes from the Greek and means tallow or lard, so it shows the origin of the substance. Structure and properties Stearic acid or octadecanoic acid (C18H36O2, Mr = 284.5 g/mol) is a saturated and unbranched C18 fatty acid, i.e., … Stearic Acid
Definition Pharmacy mainly sells medicinal gasoline PH (wound gasoline) and gasoline for stain removal (spot gasoline). The quality of medicinal gasoline is prescribed by pharmacopoeia. It is a purified mixture of saturated hydrocarbons, mainly with 6 and 7 carbon atoms (hexane and heptane, PH). Stain water is not the same as stain gasoline and contains … Gasoline
Definition Amines are organic molecules containing nitrogen (N) atoms bonded to carbon or hydrogen atoms. They are formally derived from ammonia, in which hydrogen atoms have been replaced by carbon atoms. Primary amines: 1 carbon atom Secondary amines: 2 carbon atoms Tertiary amines: 3 carbon atoms The functional group is called the amino group, for … Amines
Products Carbonic acid is present in very small quantities in, for example, mineral water (sparkling water) and sodas. Structure and properties Carbonic acid (H 2 CO 3 , M r = 62.0 g/mol) is a weak, biprotonic acid that is counted among the inorganic compounds despite the carbon atom. It is very unstable in the … Carbonic Acid
Definition The mole (symbol: mol) is the SI unit of quantity of substance. One mole of a substance contains exactly 6.022 140 76 × 1023 elementary units, for example, atoms, molecules, or ions. This number is called the Avogadro number: 6,022 140 76 × 1023. The Avogadro constant (Avogadro constant) NA, on the other hand, … Mol (Amount of Substance)
Definition Molecules are defined chemical compounds in which at least two, but usually more, atoms are covalently bonded together. Typical atoms in molecules are nonmetals such as carbon (C), hydrogen (H), oxygen (O), nitrogen (N), sulfur (S), phosphorus (P), and halogens (fluorine (F), chlorine (Cl), bromine (I), iodine (I)). Organic compounds contain carbon atoms. The … Molecules
Definition Alkanes are organic compounds composed exclusively of carbon and hydrogen atoms. They belong to the hydrocarbons and contain only C-C and C-H bonds. Alkanes are not aromatic and saturated. They are referred to as aliphatic compounds. The general formula of acyclic alkanes is C n H 2n+2 . The simplest alkanes are the linear … Alkanes
Definition Alkenes are organic compounds which contain double bonds between carbon atoms (C=C). Alkenes are hydrocarbons, meaning that they consist exclusively of carbon and hydrogen atoms. They are also called unsaturated compounds. This is in contrast to the saturated ones, which contain only single bonds (C-C). Alkenes can be linear (acyclic) or cyclic. Cycloalkenes are, … Alkenes
Products Erythritol is used as an excipient in pharmaceuticals and is also used in food and personal care products. It is a sugar alcohol with 4 carbon atoms. Structure and properties Erythritol (C4H10O4, Mr = 122.1 g/mol) exists as a white crystalline powder or as free-flowing granules and is readily soluble in water. Erythritol is … Erythritol
Definition and structure Fatty acids are lipids consisting of a carboxy group and a hydrocarbon chain that is usually unbranched and may contain double bonds. The figure shows palmitic acid with 16 carbon atoms (C16): they typically exist in nature free or in the form of glycerides. Glycerides consist of a molecule of glycerol esterified … Fatty Acids
Products Pure monosaccharides are available in specialty stores, such as pharmacies and drugstores. The best-known monosaccharides include glucose (grape sugar), fructose (fruit sugar) and galactose (mucilage sugar). Structure and properties Monosaccharides are the simplest carbohydrates (“sugars”), consisting of carbon (C), hydrogen (H), and oxygen (O) atoms. The organic compounds have the general formula Cn(H2O)n. There … Monosaccharides
Definition The best-known representative of the aromatics is benzene (benzenes), which consists of six carbon atoms arranged in a ring with angles of 120°. Benzene is usually drawn like a cylcoalkene, each with three alternating single and double bonds. However, benzene and the other aromatics do not belong to the alkenes and behave chemically differently. … Aromatics
