Using the matchstick is one of the means to fire, its invention has made immortal contributions to human beings in fire-making. The matchstick brings a lot of convenience to our daily life, but do you...
The working principle of safety matches: Head: oxidizing agent (KClO3, MnO2), combustibles (e.g., sulfur, etc.), a binder. Matchbox side: red phosphorus, antimony trisulfide, adhesive.
Ordinary black matches, safety matches is the original design, from Sweden. As the match after ignition head is still black, as distinguished from, and later joined the security dye in the first match in medicine.
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