Hate to break it all to you, but you can’t have a pencil without something called HB. The material used for a pencil in the US is actually called “Acrylonitrile Butadiene Styrene (ABS).” We’ve been using this for decades in a number of different applications. This stuff does things to paper that are different from most of what your typical ink or pencil does, so people used to keep their pencil with a special ink. That’s what makes this a very useful product.
As for why HB is in pencils, the basic explanation comes down to a chemical reaction called “oxidation.” Oxidation is the oxidation of a metal on a catalyst (a substance which takes a chemical bond with a carbon, or oxygen, to make a chemical reaction).
Inks and pencils usually have the same metals, except for the type of metal which creates that metal through oxidation. This is often called bonding, but you could also call it “bonding.” The metal on a pencil and its catalyst are said to be “bonded” together in accordance with the bonds in the recipe called the “H-Coupling Reagent.”
In some cases, the two catalysts are different. For instance, you wouldn’t want to have a pencil made of an aluminum alloy and aluminum. You’d have a pencil which uses the metal that actually creates the aluminum from an alloy of other metals. Or the metal on your paper won’t exist, but it could be formed by using another metal or an alloy of other metals.
HB basically binds two metal catalysts together to create a new, unique form of metal.
There are four chemical reactions that contribute to the “oxidation” of metal catalysts. One of these reactions produces a very specific kind of oxidation by one or more of the metals. The two other reactions can combine in all different ways to produce a very very specific form of an oxidation reaction. But for these four reactions there is one key catalyst component. That is the alloy of the metal on the pencil that is used to make the paper that you get out of that pencil. This is what is called “HB.”
So how is HB created? If you’ve ever been to a pencil factory (if that’s not where you get your pencils), they use what is called a “mixing reagent.” This reagent is one or more of the different bonding catalysts.
When that reagent is mixed with
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