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词汇 Glowing splint
分类 英语词汇 英语翻译词典
释义

Glowing splint

英语百科

Splint (laboratory equipment)

A box of cylindrical splints
Glowing splint test: the first flask contains air, the second flask contains oxygen, the third flask contains an inert gas, such as nitrogen
A glowing splint is held above a glass tube, in which oxygen gas is trapped.When the stopcock is opened, oxygen gas rushes out, and ignites the glowing splint.Testing for oxygen with a glowing splint
With the tube's stopcock opened, the splint bursts into bright flame

A splint is a simple piece of equipment used in scientific laboratories. Splints are typically long, thin strips of wood, about 6 inches (150 mm) long and ¼ inch (6 mm) wide, and are consumable but inexpensive. They are typically used for tasks such as lighting bunsen burners, as the length of the splint allows a flame to be lit without risk to the user's hand, should the burner flare back. Another use for splints are chemical identification of various gases, and are also used to teach simple chemical principles in schools.

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