Definition Acrolein (CH₂=CHCHO), also known as propenal or acrylaldehyde, is the simplest unsaturated aldehyde. It is a colorless, highly volatile liquid with a strong irritating odor. It is an important reactive intermediate in industrial organic chemistry due to its high…
Definition Methyl mercaptan, also known as methanethiol, is a sulfur-containing organic compound with the chemical formula CH₃SH. It is a colorless gas characterized by a strong, unpleasant odor even at very low concentrations. It is one of the simplest thiols…
Definition Acetone cyanohydrin (ACH), also known as 2-hydroxyisobutyronitrile, is an organic compound with the molecular formula (CH₃)₂C(OH)CN. It is a key intermediate in industrial chemical synthesis, particularly in the production of methyl methacrylate (MMA). It is a colorless to pale…
Definition Cyanide refers to a class of chemical compounds containing the cyano group (–C≡N), in which a carbon atom is triple-bonded to nitrogen. The most common forms include hydrogen cyanide (HCN), inorganic metal cyanides such as sodium cyanide (NaCN) and…
Definition Hydrogen cyanide (HCN), also known as hydrocyanic acid, is a highly volatile and extremely toxic chemical compound with the molecular formula HCN. It is a colorless liquid or gas with a faint bitter almond odor. HCN is an important…
Definition Acrylic acid, also known as propenoic acid, is a colorless, highly reactive unsaturated carboxylic acid with the molecular formula CH₂=CHCOOH. It is the simplest unsaturated carboxylic acid and serves as a key building block in the production of acrylates,…
Definition Methyl acrylate is a colorless, volatile organic compound with the molecular formula CH₂=CHCOOCH₃. It belongs to the acrylate ester family and is one of the simplest monomers used in industrial polymer chemistry. It contains an activated vinyl group, which…
For many fine chemicals and advanced material products, achieving higher purity is far from straightforward. Some materials have high boiling points that make distillation impractical. Others are highly sensitive to solvent systems, making recrystallization screening both costly and time-consuming. In…
When developing a purification process, the most direct way to evaluate a technology is through data. However, when assessing melt crystallization performance, the final product purity alone does not tell the whole story. Equally important is understanding how purity improves…
When conducting laboratory-scale melt crystallization studies, one question frequently arises: customers want to know as early as possible whether a material is worth scaling up. This is where laboratory-scale data becomes critical. The purpose of a lab-scale study is not…