Product : Talc Powder SiO2>60%, MgO>30%, whiteness >92; white or off -white fine powder; CAS No.: 14807- ... - 084Product NameTalc PowderOriginpulvistalciPH Value7~10Particle Size400~3000MeshDescriptionsSiO2>60%, MgO>30%, whiteness >92;X-ray Negative;white or off -white fine powder ... us to be your reliable supplier? Talc Powder,100% natural, whiteness >92%, SiO2>60%