Tin oxide particles and a method of manufacturing the same

Novel tin oxide particles characterized in that in powder X-ray diffraction, the peak intensity ratio of the (101) plane to the (110) plane of tin oxide is 1.0 or higher.  The tin oxide particles have a flake-like shape, and the longest width and shortest width of the face of the flake fall within the range of 0.05 to 40µm and the thickness is preferably 0.005 to 2µm.  The tin oxide particles are produced by adding both a tin(II) compound and an alkali into a reactor in such a manner as to keep the pH in the reactor at 6 or below to hydrolyze the tin(II) compound.  The obtained hydrolyzate may be further fired, as necessary.  The tin oxide particles are useful as conductive material, catalyst, gas sensor, and so on, and can be either used as dispersions, or incorporated into coating materials, resin compositions, and so on.