Ammonium Molybdate Tetrahydrate, with the CAS number 12054 - 85 - 2, is a high - quality chemical compound offered at a low price. It has the chemical formula (NH₄)₆Mo₇O₂₄·4H₂O. The appearance of this product is usually a colorless to pale yellow crystalline powder. It has a molecular weight of approximately 1235.86 g/mol. The density of ammonium molybdate tetrahydrate is around 2.498 g/cm³. It is soluble in water, and the solubility can vary with temperature. This compound is stable under normal conditions, but it may decompose when exposed to high temperatures or strong reducing agents.
1. **Agriculture**: Ammonium Molybdate Tetrahydrate is an essential micronutrient fertilizer. Molybdenum is a key element for the growth of plants, especially for leguminous plants. It participates in nitrogen fixation and enzyme activities in plants, promoting the growth and development of plants, improving the quality and yield of crops.
2. **Catalysis**: It is widely used as a catalyst in the chemical industry. For example, it can catalyze oxidation reactions, hydrogenation reactions, and hydrocarbon cracking reactions. In the petroleum refining industry, it can be used to remove sulfur and nitrogen compounds from crude oil, improving the quality of refined oil.
3. **Metallurgy**: In the metallurgical industry, ammonium molybdate tetrahydrate is used as an additive in the production of special steels and alloys. It can improve the strength, hardness, and corrosion resistance of metals.
1. **Agricultural Use**: When using it as a fertilizer, it can be dissolved in water and sprayed on the leaves of plants or applied to the soil. The dosage should be determined according to the type of soil, the growth stage of plants, and the molybdenum content in the soil. Generally, the foliar spraying concentration is 0.02% - 0.05%, and the soil application rate is 100 - 200 g per hectare.
2. **Catalytic Use**: In the chemical reaction process, it can be added directly to the reaction system in an appropriate amount. The specific dosage and reaction conditions should be determined according to the type of reaction and the requirements of the product. It is usually necessary to carry out pre - experiments to optimize the reaction conditions.
3. **Metallurgical Use**: In the metallurgical process, it is added to the molten metal according to the proportion required by the alloy composition. The addition method should ensure uniform mixing with the molten metal to achieve the best effect.
1. **Agricultural Case**: A soybean farm in a certain area has been suffering from low yields due to molybdenum deficiency in the soil. After using ammonium molybdate tetrahydrate as a foliar fertilizer at a concentration of 0.03% during the flowering and pod - setting stages of soybeans, the nitrogen - fixing ability of soybeans was significantly enhanced. The pods became fuller, and the yield increased by about 15% compared with the previous year.
2. **Catalytic Case**: A chemical plant uses ammonium molybdate tetrahydrate as a catalyst in the oxidation reaction of a certain organic compound. By optimizing the dosage of the catalyst and the reaction temperature, the reaction conversion rate increased from 70% to 90%, and the selectivity of the product also improved, reducing the production cost and improving the economic benefits of the enterprise.
3. **Metallurgical Case**: A steel plant added ammonium molybdate tetrahydrate to the production of a high - strength alloy steel. After the addition, the strength and toughness of the steel were significantly improved. The steel was used in the construction of high - rise buildings, and it passed all the relevant quality inspections, ensuring the safety and stability of the building structure.
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Este é o William, Diretor Executivo da Zhishang Chemical Co., Ltd.
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