Non safety matches 5, non safety matches

It was very common 70 years ago.

This kind of match can be wiped on the wall casually, which is very dangerous.

It's hard to get it now, and you can do it yourself if you have the conditions, hehe.

Or ask for a gunslinger in a western movie......

The world's first match was born in Italy more than 200 years ago, the match stick is made of wooden sticks, the main components of the match head are potassium chlorate and sucrose, the match head is in contact with concentrated sulfuric acid when used, and the match head burns fiercely after a while, but this match is high, inconvenient to carry, and concentrated sulfuric acid is very dangerous, so it has not been promoted.

It is known that in 1834, matches began to become popular in the world, and at the beginning, the gunpowder dipped in the head of the match was mainly white phosphorus, which is a very flammable substance, and it will burn when it is slightly heated. Sometimes when you have it in your arms, it will suddenly catch fire.

Later, people used phosphorus and sulfur compounds - phosphorus trisulfide tetraphosphorus - to make matches of gunpowder, this kind of match is called friction match, although it is not poisonous, but it is also easy to catch fire, a slight friction can ignite the flame, of course, it is not safe enough.

It wasn't until more than 100 years ago that people made safety matches, which could not be burned by friction alone, and had to be rubbed on a matchbox coated with red phosphorus to catch fire, which was indeed much safer.

So what do you mean by safety matches? Use it with care and be safe... The world is generally black matches--

A safety match is a fire-making tool that can rub to ignite. Safety matches separate red phosphorus from oxidants, and are pure and non-toxic with Xiaofan chemicals, which are called safety matches. In the second half of the eighteenth century, yellow phosphorus was mainly used as an ignition agent.

Because yellow phosphorus was toxic, it was gradually replaced by phosphorus sulfide matches. Although the latter is non-toxic and can cause hail, it may spontaneously combust at any time. In 1855, the match factory established in Sweden in the world successfully developed safety matches.

A safety match is a fire-making tool that can rub to ignite. A safety match that separates red phosphorus from an oxidizing agent and is chemically non-toxic, is called a safety match. In the second half of the eighteenth century, yellow phosphorus was mainly used as an ignition agent.

Because yellow phosphorus was toxic, it was gradually replaced by phosphorus sulfide matches. Although the latter is non-toxic, it can spontaneously combust at any time. In 1855, the match factory established in Sweden in the world successfully developed safety matches.

Known as safety matches are red phosphorus matches. In 1845, the German Schroeder made red phosphorus and used it in the manufacture of matches, which were safe and non-toxic. In the mid-50s of the 19th century, the Swedish manufacturer Rundström separated phosphorus from other flammable components and applied non-toxic red phosphorus to the rubbing surface of the matchbox, while the other components were applied to the matchhead and hidden in the box.

In this way, the match head can only be lit by rubbing the surface to disassemble and ignite, which is the "safety match" that has been used to this day.

Match is based on the principle of frictional heat generation of objects, using the chemical activity of strong oxidant and reducing agent, to make a kind of fire tool that can be friction fire. Matches can be divided into daily safety matches, ordinary matches, high-grade matches and a variety of special matches. The advantage of safety matches is that they separate red phosphorus from oxidants, which are not only safer than jujubes, but also non-toxic to the chemicals used.

So it is also called a safety match. The match head mainly contains potassium chlorate, manganese dioxide, sulfur and glass powder. The matchstick is coated with a small amount of paraffin.

Safety matches are known as red phosphorus matches.

In 1845, the German Schroeder made red phosphorus and used it in the manufacture of matches, which are safe and non-toxic. In the mid-50s of the 19th century, the Swedish manufacturer Rundström separated phosphorus from other flammable components, applying non-toxic red phosphorus to the rubbing surface of the match, and other components were applied to the match head and hidden in the surface. In this way, the match head can only be ignited by rubbing the surface, which is the safety match that is still used today.

The components in safety matches are: match heads are mainly composed of oxidants, flammable materials (such as sulfur, etc.) and adhesives. The side of the matchbox is mainly composed of red phosphorus, trisulfide discal, and adhesive.

When the match is struck, the match head and the side of the matchbox rub and heat, and the heat released decomposes KCI03, producing a small amount of oxygen, which makes the red phosphorus ignite, thereby causing the flammable materials (such as sulfur) on the firewood head to burn, so that the match is struck. The advantage of safety matches is that they separate red phosphorus from the oxidizing agent, which is not only safer, but also non-toxic to the chemicals used. So it is also called a safety match.