If you ignited the match by breaking the bead using a pair of pliers or, if you were more daring, your teeth. This process released the acid, which ignited an exothermic reaction in the surrounding combustible materials.
After Jones, is began to market a friction match discovered, but not patented by John walker. Walker, who had been experimenting with explosive, discovered this match one day when he tried to remove a small globe of a dried mixture of antimony sulfide and potassium chlorate from a stick. He rubbed that stick on the floor and was surprised when it burst into flame. Jones called his matches LUCIFERS they were well named, when lighted they gave off a shower of sparks and smoky fumes with the acrid odors of sulfur dioxide. Jones had every match box with inscribed with the warning persons whose lungs are delicate should by no means use lucifers.
Then after few years later, Charles Sauria, invented the white phosphorus which became immediate successful. When rubbed on the rough surface the match lighted easily without hazardous sparks and smelled better than lucifers, that match head contained white phosphorus as a oxidizing agent and glue. The white phosphorus is a yellowish - white waxy substance often sold in the form of sticks looking something like fat and crayons. Unlikely crayons, though white phosphorus ignited spontaneously in air and it's generally stored under water.
The glue is in the mixture had for two purposes, it protected the white phosphorus from air, and it held the match mixtures firmly together. The white phosphorus is a quite poisonous. Worker's in match factories often began to show the agonizing symptoms of ' PHOSSY JAW' from the white phosphorus poisoning in which the jawbone disintegrates. The all manufacturers of white phosphorus matches was out lawed in the years 1900.
This head of the strike anywhere in the match which you also buy nowadays and any grocery store, contains the relativity non-toxic tetra phosphorus and trisulfide, P₄S₃, and potassium chlorate, KClO₃ by rubbing the match head against a surface, you can create enough heat by friction to ignite the match material. The tetraphosphorus and trisulfide then burns in air in a very exothermic reaction.
P₄S₃(s)+ 8O₂(ɡ)→ P₄O₁₀(s) + 3SO₂(ɡ);
∆H = - 3676 kj
Safety matches having a head containing mostly an oxidizing agent and requires a striking surface containing non-poisonous, RED PHOSPHORUS.
Very nice
ReplyDelete