pyroxylin

Thân thiện

A chemist carefully handles a small sample of pyroxylin in the laboratory.

Definition

Noun: 1. A highly flammable substance: Pyroxylin is a form of nitrocellulose, a compound created by treating cellulose (like cotton) with nitric and sulfuric acids. It is known for being extremely easy to ignite and burn.

Usage

Pyroxylin is a technical term used primarily in chemistry and industrial manufacturing contexts. It refers to the specific material used as a base for other products. - The early film industry used pyroxylin, which posed a significant fire risk. - The chemist handled the pyroxylin with extreme caution due to its flammability.

Advanced Usage

• Historical Context: Pyroxylin was a key component in early plastics (like celluloid) and photographic films. Its use has declined due to safety concerns.
  • Museum conservators must carefully monitor artifacts made from pyroxylin-based plastics.

Variants and Related Words

• Nitrocellulose (n): The broader chemical category to which pyroxylin belongs. Pyroxylin is a specific type or grade of nitrocellulose with a certain nitrogen content.
• Collodion (n): A solution of pyroxylin in a mixture of ether and alcohol, used historically in medicine and photography.
• Celluloid (n): An early plastic made from pyroxylin and camphor.

Synonyms

• Guncotton (n): A term often used interchangeably with pyroxylin, though it can sometimes refer to a more highly nitrated form used in explosives.

Học thuật

Noun

1. highly flammable nitrocellulose used in making collodion and plastics and lacquers

Từ đồng nghĩa

• pyroxyline