Ammonium chromate ((NH4)2CrO4)

Ammonium chromate has an eye-catching appearance, appearing in the form of bright yellow crystals that shimmer with enticing light in the sun. Not only that, it also displays a vibrant yellow in solution, as if it were a continuation of the sun's light, giving a warm and lively feeling. Furthermore, when you approach it, you can also feel a unique ammonia smell, which reminds people of the common chemicals used in laboratories. The chemical formula of this compound is (NH4)2CrO4, which is like its identity card, uniquely and accurately identifying it. Its CAS number, also known as the chemical substance registration number, is 7788-98-9, which is a universal identifier used internationally, allowing chemists worldwide to find it accurately. From a chemical perspective, its molecular formula can be written as CrH2O4·2H3N, which is like its inner code, revealing its molecular structure. It has many nicknames because it has many chemical properties, and people have given it different names based on its different uses and characteristics. For example, it can be called the ammonium salt of potassium dichromate (H2CrO4) (1:2) because of its structure containing potassium dichromate; it can also be called the di-ammonium salt of potassium dichromate (H2CrO4), because its molecule contains two ammonium ions. It can also be called ammonium hexachromate, because the chromium element is in a hexavalent state; it can also be called neutral ammonium chromate, because its properties in solution are neutral; it can also be called ammonium chromate ((NH4)2CrO4), because its main component is ammonium and chromic acid; it can also be called di-ammonium chromate, because its molecule contains a chromic acid and two ammonium ions; it can also be called ammonium dichromate, because its structure contains chromic acid; it can also be called di-ammonium chromate ((NH4)2CrO4), because its main component is ammonium and chromic acid.

In the neutralization method, ammonia water is added to a reactor filled with ammonium dichromate to perform a neutralization reaction to form an ammonium chromate solution. After evaporation and concentration, cooling and crystallization, solid-liquid separation and drying, a finished ammonium chromate product is prepared. In its (NH4)2Cr2O7+2NH4OH→2(NH4)2CrO4+H2O double decomposition method, potassium chromate is added to the reactor containing water, and ammonium sulfate solution is slowly added under stirring to carry out double decomposition reaction to produce ammonium chromate and potassium sulfate solution , Filter to remove potassium sulfate, evaporate and concentrate, cool and crystallize, solid-liquid separation and drying, to prepare ammonium chromate finished product. Its K2CrO+(NH4)2SO4→(NH4)2CrO4+K2SO4

Ammonium chromate can also be referred to as di-ammonium chromate (NH4)2CrO4, because its main components are ammonium and chromic acid. Its classification falls under the category of inorganic chemistry as it is composed of inorganic elements, and its properties are stable and non-decomposable, making it widely used in industry and laboratories. Ammonium chromate is a chemical substance with a wide range of applications, covering various fields. In the photography field, it is widely used as an important component of photographic emulsion, helping to produce high-quality photographic works; in the textile printing and dyeing industry, it is used as a binder for sizing agents to improve the adhesion of dyes, making the dyeing effect more vivid and durable; in the dyeing of wool, it is used as a fixing agent for chromic acid dyes to enhance the stability and durability of the color, making the dyed wool products more beautiful and durable; in analytical chemistry, it is used as a reagent to detect and analyze metal ions, providing accurate data support for scientific research and industrial production. In summary, ammonium chromate is a chemical substance with multifunctional properties, playing an important role in various fields and providing great convenience for various industries. Its widespread use not only improves the production efficiency of industries but also drives the development and innovation of related technologies.

Molecular Weight:152.07
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:4
Exact Mass:151.988911
Monoisotopic Mass:151.988911
Topological Polar Surface Area:82.3
Heavy Atom Count:7
Complexity:62.2
Covalently-Bonded Unit Count:3
Compound Is Canonicalized:Yes