Where can I get this and what is it used for or how can I make it?

The abbreviation you posted stands for mercury and chlorine, so i'm guessing that it's mercuric dichloride. If you don't know what it is, what it's used for, or how to make it, why are you even thinking of fucking with it?

Mercury chloride(HgCl2)is used in making amalgums such as the fillings in your teeth altho i think they quit using it for that not sure tho. here is some shit i found in some text files i have put away.

It can be made by the sublimation of

mercury sulfate and sodium chloride.This is NOT a recommended procedure

for the home lab.

An easier way is to dissolve the mercury in nitric acid, giving

Hg(NO3)2, then displacing the nitrate with clorine using a small

excess of concentrated HCl. The HgCl2/HCl/H2O solution is then

evaporated to dryness on a water bath. HgCl2 sublimes readily at

temperatures above 100 deg C, making it an excellant way to poison

yourself.

this is dangerous shit and i agree with kman if you dont know what it is what its used for or where to get it maybe you shouldnt fuck with it.

Warning first:

Mercuric chloride is toxic as fuck. Do not ingest it and always wear gloves. It affects lymphocytes and can knacker the capsule in yer nephrons.

Info second:

Mercuric chloride is available as a photographic chemical. It is also used as a fungicide, but not so commonly.

Synth

This is what you do:

Get some mercury thermometers(drug stores have them) break them carefully and put the mercury(1g per themometer) into a sealed vial.

Add some iodine crystals and shake until all you have is yellow powder and no mercury left.

There you just made HgI2 a little less soluble(which is a good thing) and way easier to make(trust me I've made HgCl2) and just as effective.

thanks a bunch guys

If you are thinking about buying HgCl2 be prepeared to pay a hazmat fee, it is very expensive.

after reading tryps post id say there is no reason to buy it