Oxygen

Products Oxygen is commercially available in the form of compressed gas cylinders (oxygen cylinders) with a white color as a compressed gas. In many countries, it is available from PanGas, for example. Structure and properties Oxygen (symbol: O, elemental: O2, atomic number: 8, atomic mass: 15,999) is present as dioxygen (O2, O=O) as a colorless, … Oxygen

Boiling Point

Definition and properties The boiling point is the characteristic temperature at which a substance passes from the liquid to the gaseous state. The liquid and gaseous phases are in equilibrium at this point. A typical example is water, which starts boiling at 100 °C and becomes water vapor. The boiling point depends on the pressure. … Boiling Point

Carboxylic Acids

Definition Carboxylic acids are organic acids with the general structure R-COOH (less commonly: R-CO2H). It is composed of a residue, a carbonyl group, and a hydroxyl group. The functional group is called the carboxy group (carboxyl group). Molecules with two or three carboxy groups are called dicarboxylic acids or tricarboxylic acids. An example of a … Carboxylic Acids

Inhalation Anesthetics

Products Inhalation anesthetics are commercially available as volatile liquids or as gases for inhalation. Structure and properties Most inhalation anesthetics are halogenated ethers or hydrocarbons. Also used are inorganic compounds such as the gaseous nitrous oxide. The halogenated representatives exist as volatile liquids with a different boiling point. Because of their odor and irritant properties, … Inhalation Anesthetics

Aldehydes

Definition Aldehydes are organic compounds with the general structure R-CHO, where R can be aliphatic and aromatic. The functional group consists of a carbonyl group (C=O) with a hydrogen atom attached to its carbon atom. In formaldehyde, R is a hydrogen atom (HCHO). Aldehydes can be obtained, for example, by oxidation of alcohols or by … Aldehydes

Ketones

Definition Ketones are organic compounds containing a carbonyl group (C=O) with two aliphatic or aromatic radicals (R1, R2) attached to its carbon atom. In aldehydes, one of the radicals is a hydrogen atom (H). Ketones can be synthesized, for example, by oxidation of alkoles. The simplest representative is acetone. Nomenclature Ketones are usually named with … Ketones

Formaldehyde

Products Specialty retailers can order formaldehyde solutions from specialized suppliers. Structure and properties Formaldehyde (CH2O, Mr = 30.03 g/mol) is the simplest representative from the substance group of aldehydes, which exists as a gas. The boiling point is -19 °C. Formaldehyde oxidizes easily to formic acid. It can be obtained by the oxidation of methanol. … Formaldehyde

Ester

Definition Esters are organic compounds formed by the reaction of an alcohol or phenol and an acid such as a carboxylic acid. The condensation reaction releases a water molecule. The general formula of esters is: esters can also be formed with thiols (thioesters), with other organic acids, and with inorganic acids such as phosphoric acid … Ester

Ethanol

Products Alcohol is contained in numerous intoxicating and stimulant products, such as wines, sparkling wines, beers and high-proof spirits. Per capita consumption in many countries averages about 8 liters of pure alcohol per year. Ethanol is also available as an open product in various qualities in pharmacies and drugstores (e.g. ethanol 70% with camphor, ethanol … Ethanol

Isoflurane

Products Isoflurane is commercially available as a pure liquid and has been approved in many countries since 1984 (Forene, generic). Structure and properties Isoflurane (C3H2ClF5O, Mr = 184.5 g/mol) exists as a clear, colorless, mobile, heavy, stable, and nonflammable liquid that is practically insoluble in water. It has a slightly pungent and ether-like odor. The … Isoflurane

Water

Products Water is commercially available in different qualities. Water for pharmaceutical purposes is available in pharmacies, for example, the purified water (see there). It is produced in pharmacies or ordered from specialized suppliers. Structure Pure water (H2O, Mr = 18.015 g/mol) exists as a clear, colorless liquid without odor or taste. It is an inorganic … Water

Alkanes

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