titanium sulfate is the inorganic compound with the formula TiOSO4. It is a white hygroscopic solid that deliquesces upon exposure to air and heat. It is moderately water and acid soluble. It is used as a precursor for the synthesis of titanium dioxide (TiO2) photocatalysts. It also functions as a detection reagent for hydrogen peroxide, as it forms orange-yellow peroxotitanyl sulfate when exposed to peroxide.

Titanium (atomic number 23) is a metallic element with a silvery-white appearance, hardness and corrosion resistance. It occurs naturally as the crystalline minerals rutile and anatase, which can be mined to serve as a source for commercial titanium. Titanium dioxide, or titania, is an important pigment for many applications because of its bright whiteness and opacity. It is an ingredient in products such as paints, coatings, paper and inks, cosmetics and toothpaste. It is often added to sunscreens because it has the ability to absorb ultraviolet light.

TiO2 has a high index of refraction and a strong dispersing power, making it useful in optical equipment such as lenses and cameras. It is also an important material in electronics, abrasives and coatings for armor plating and naval ships. It has been incorporated into various metal alloys due to its exceptional strength, corrosion resistance and lightweight properties.

This product was formerly part of the Alfa Aesar portfolio. Some documentation and labeling may refer to the legacy brand. This Thermo Scientific Chemicals brand is manufactured under a quality assurance program by an ISO 9001:2008 registered company, Thermo Fisher Scientific.