Ferene disodium salt is a yellow powder often used as a reagent in colorimetry for iron. It is the preferred chemical compound because of its high molar absorptivity which makes it more sensitive than similar reagents. As such, it is commonly used in industries, pharmaceuticals, and manufacturing. It is sometimes called Ferene S, F-0960, and other synonyms in the chemical industry. It is made by several companies who sell it in turn to other businesses.

Its molecular weight is 494.4 grams per mol. The hydrogen bond accepter count is 12 while the rotatable bond count is 3. The hydrogen bond donor count is zero. The topological polar surface area is 209 A^2. It has a complexity of 787 and a heavy atom count of 32. The covalently-bonded unit count is 3. This salt compound is canonicalized which means that different forms have comparable energies. It has a moisture content that ranges between 9% and 13%. The iron content is only 5 ppm.

This a potentially hazardous material. It may cause skin irritation upon exposure. It can also cause serious eye irritation that could lead to permanent damage. This salt is known to trigger respiratory irritation even with a single exposure. Due to the danger, this should be handled with extreme care. Workers should wear gloves to protect the hands and arms. They should wear eye shields and heavy duty dust masks as safeguards.

As for storage, manufacturers suggest keeping the chemical in a sealed package at room temperature. It should be protected from light, especially sunlight which can cause heat build-up. It should be stored in a cool and dry place to avoid the absorption of moisture that can affect its properties. Consult an expert to ensure that its integrity can be protected while in storage.

Colorimetry is a clever technique used by chemists to measure the concentration of a colored compound in a given solution. A light source goes through a collimator, usually a lens, then a monochromator like a prism to split the light into different component wavelengths like a rainbow. This will be filtered by a wavelength selector before exposure to the sample solution. A light detector such as a photocell will be on the other side of the solution to make measurements and display the result. Ferene disodium salt is effective in colorimetry when chemists are interested in gauging the concentration of iron in a solution.