Metal elements, symbols TI, white, soft. Its compounds are toxic. English name: Thallium, derived from thallqs, meaning buds - because of its bright yellow line in the spectrum with a new green color, discovered in 1861. Its main purpose is to create a potent thallium sulfate ── rodenticides. It is an odorless and odorless metal. Its salt and starch, sugar, glycerin and water can produce a rodenticide for "hospital" mice. Useful in fighting plague. The chemical symbol is derived from the tender green color of its spectral line, which is based on the Greek word "thallos", meaning "green shoots." In 1861, the British chemical and physicist Sir William Crookes discovered this element in the spectrum of the sulfuric acid plant waste residue and named it; the next year, Crookes and Lamy used electrolysis almost simultaneously. The legal system is successful. The content of strontium in the earth's crust is about three hundred thousandths. It is distributed in feldspar , mica and iron or copper sulphide ore in low concentration, and there are few independent antimony ore.
Seamless Boiler Bend,Stainless Steel Boiler Bend,Boiler Tube Bending,U Bent Tube Boiler Jinan Yuanda Power Equipment Co.,Ltd. , https://www.ydpowerequipment.com
Boiler Tube Bend are made form tight radius thick wall tubes used in the boiler industry. We manufacture these heavy-duty machines equipped with a clamping device, which locks the tube into the pressure die and allows the tube to be forced thus reducing wall thinning and ovality.