Xylose

Products Xylose is available in specialty stores. The name is derived from the Greek name for wood (xylon). Structure and properties The D-xylose (C5H10O5, Mr = 150.1 g/mol) exists as a white crystalline powder or colorless needles and is readily soluble in water. It is a monosaccharide (a carbohydrate) and an aldopentose, that is, a … Xylose

Burns (Chemistry)

Note about this article This article refers to burns in chemistry. See also under burns (medicine). Burns In chemistry, a combustion usually refers to an oxidation in which heat, light, fire, and energy are released. For example, the alkane octane is an important component of gasoline: C8H18 (octane) + 12.5 O2 (oxygen) 8 CO2 (carbon … Burns (Chemistry)

Talk

Products Talc is available as an open product in pharmacies and drugstores. It is a common ingredient in powders and is included in shake brushes and mixtures such as white shake mixture. Talc is an excipient for many drugs, especially tablets, and it is also used in cosmetics. Structure and properties Talc exists as a … Talk

Magnesium Health Benefits

Products Magnesium is found in numerous pharmaceuticals and dietary supplements and is available in the form of tablets, effervescent tablets, chewable tablets, lozenges, capsules, direct granules, powder, injectable solution, and granules, among others. Structure and properties Magnesium (Mg, atomic number: 12) is present in drugs in the form of various inorganic and organic salts, such … Magnesium Health Benefits

Acids

Products Acids are found in numerous drugs as active ingredients or as excipients. As pure substances, they are available in pharmacies and drugstores. In the household, they are found, for example, in lemon juice, fruit juice, vinegar and cleaning agents. Definition Acids (HA), with the exception of Lewis acids, are chemical compounds that contain a … Acids

Ammonia

Products Ammonia solutions are available from specialty stores (e.g., pharmacies, drugstores, hardware stores) in various concentrations. They are also known as sal ammonia or sal ammonia spirit. Structure and properties Ammonia (NH3) is a colorless gas with a typical pungent and unpleasant odor, which is formed from nitrogen (N2) and hydrogen (H2) can be obtained. … Ammonia

Mol (Amount of Substance)

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)

Molecules

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

Alkenes

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

Alcohols

Definition Alcohols are a group of organic compounds with the general chemical structure R-OH. The hydroxyl group (OH) is attached to an aliphatic carbon atom. Aromatic alcohols are called phenols. They are a separate group of substances. Alcohols can be obtained as derivatives of water (H 2 O) in which a hydrogen atom has been … Alcohols

Kerosenes

Products Pure kerosenes are available in pharmacopoeia quality in pharmacies and drugstores. They are also found in creams, ointments, pastes, body lotions, baths, eye drops, cosmetics, gauzes and emulsions for ingestion, among other products. Kerosenes are also known as mineral oils and have been used medicinally since the 19th century. Structure and properties The pharmacopoeia … Kerosenes

Hydrochloric Acid

Products Hydrochloric acid is available in various concentrations at specialty stores. Structure and properties Hydrochloric acid is the name given to an aqueous solution of hydrogen chloride gas (HCl). Concentrated hydrochloric acid exists as a clear, colorless liquid that fumes in air with a pungent odor and is miscible with water. It has a concentration … Hydrochloric Acid