peptise
Học thuậtThân thiện
Definition
Verb: * To disperse a substance into a colloidal state within a medium; to cause a substance to form a colloidal solution or suspension.
Usage
The verb "peptise" describes a specific chemical process. It is used when a solid or coagulated material is broken down and distributed as very fine particles throughout a liquid, forming a stable colloidal mixture. This action is often induced by adding another chemical agent (a peptizing agent).
Examples
- The chemist used a small amount of alkali to peptise the precipitated oxide.
- Certain clays can be peptised in water to create a stable suspension.
- The goal of the procedure is to peptise the aggregate, preventing it from settling.
Advanced Usage
- "Peptise" vs. "Disperse": While "disperse" is a more general term, "peptise" specifically implies achieving a colloidal level of dispersion, where the particles are typically between 1 and 1000 nanometers in size and do not settle out easily.
- The process is the opposite of coagulation or flocculation.
Variants and Related Words
- Peptisation (noun): The process or result of peptising.
- The peptisation of the gel was complete.
- Peptizing agent (noun): A substance that promotes peptisation.
- Sodium silicate is a common peptizing agent for silica.
Synonyms
- Deflocculate
- Disperse (into a colloid)
- Solubilize (in a colloidal sense)
Antonyms
- Coagulate
- Flocculate
- Aggregate
- Precipitate
Verb
- disperse in a medium into a colloidal state