Literally, without water. Used, for example, to differentiate between liquid (anhydrous) ammonia at temperatures below its boiling point (-33oC) and solutions of ammonia dissolved in water.
not in the presence of water.
Not containing water of hydration, or completely dry.
without water; especially without water of crystallization
A substance with no H2O molecules in hydrate form, or as water of crystallization.
Describes a compound that does not contain any water. Ethanol produced for fuel use is often referred to as anhydrous ethanol, as it has had almost all water removed.
a hydrate which has given up all of its previously held water molecules.
Without water. A substance in which no water is present in the form of a hydrate or water of crystallization.
It simply means without water. The anhydrous minerals do not contain water in their chemical structure. The term is generally used in reference to an anhydrous mineral which belongs to a group containing many hydrous minerals.
Produced without water; a combination of extraction of raw material and molecular distillation.
Literally, "without water". Refers to minerals or other materials which do not have water as an primary constituent.
A liquid or a compound that does not contain water.
Anhydrous - Having no water in a chemical compound.
dehydrated form of chemical. More concentrated, so that less weight is needed in a formula than the crystalline kind.
Free from water, dry. Being without water, especially water of crystallization.
anhydrous compound; anhydride. Compare with hydrate. A compound with all water removed, especially water of hydration. For example, strongly heating copper(II) sulfate pentahydrate (CuSO4¡¤5H2O) produces anhydrous copper(II) sulfate (CuSO4).
A product that has had all of the water removed.
An inorganic compound that does not contain water.
A descriptive term meaning "without water" or "dry."
Describing a chemical or other solid substance whose water of crystallisation has been removed.
" Without water" - transesterification of Biodiesel must be an anhydrous process or funny things happen. Water in the vegetable oil causes either no reaction or cloudy Biodiesel, and water in lye or methanol renders it less useful or even useless, depending on how much water is present. Either let your vegetable oil settle for 2-3 days before using and drain the water off the bottom, or heat the oil and boil off the water. Store lye and methanol in separate, air-tight containers.
As a general term, a substance is said to be anhydrous if it contains no water. The way of achieving the anhydrous form differs from one substance to another.
