Barium thiocyanate, with the chemical formula Ba(SCN)2, is a chemical compound composed of barium (Ba) cations and thiocyanate (SCN-) anions. It is a white crystalline solid that is sparingly soluble in water. Barium thiocyanate is formed by the reaction between barium salts and thiocyanic acid or thiocyanates.

Some key properties and uses of barium thiocyanate include:

1. Chemical Reagent: Barium thiocyanate is used as a laboratory reagent in various chemical reactions and analytical procedures.
2. Fireworks and Pyrotechnics: It is used in certain pyrotechnic compositions to produce green-colored flames in fireworks displays.
3. Tanning Agent: In the leather industry, barium thiocyanate is used as a tanning agent in the process of converting animal hides into leather.
4. Textile Dyeing: It is used in textile dyeing and printing processes to fix certain dyes on fabrics.

Barium thiocyanate is generally considered to be low in toxicity. However, as with any chemical, it should be handled with care to avoid inhalation of dust and ingestion.

It’s important to note that thiocyanates, in general, can be hazardous when they come into contact with certain reactive chemicals or when exposed to high temperatures or flames. Therefore, when using barium thiocyanate in pyrotechnics or other applications, proper safety precautions should be followed to minimize potential risks.

As with any chemical compound, safety precautions should be taken when handling barium thiocyanate in its powdered form, and appropriate personal protective equipment should be used to prevent inhalation of dust particles.