Profile: Chemical and Technical Developments Ltd is a manufacturer & supplier of high purity inorganic chemicals. Our products include germanium dioxide, germanium tetrachloride, tungsten oxychloride, cesium nitrate, transition metal and lanthanide compounds. Tungsten oychloride is an orange/red crystalline powder. Germanium tetrachloride is a clear liquid. We manufacture and supply a number of compounds including dysprosium, gadolinium, lanthanum, neodymium, praseodymium, samarium, scandium, tantalum & yttrium. We serve various industries and applications including electronics, optical & optoelectronics, chemicals, universities & research, metal finishing, defence & aerospace.