Crystalline aluminum, also known as hexahydrate aluminum, is an inorganic compound with the chemical formula AlCl3·6H2O. It is a white crystalline powder that dissolves in water but not in organic solvents. Its melting point is 63.5°C and boiling point is 181°C. Crystalline aluminum has a wide range of applications across various industries. In the paper industry, it serves as a sizing agent to enhance the quality and strength of paper. In the fire suppression industry, it is used in combination with baking soda and foaming agents to create multi-foam fire extinguishers for extinguishing fires caused by oil and organic solvents. In the inorganic industry, it is employed in the production of other aluminum salts such as alum, potash alum, and ammonium alum. In the organic industry, it can act as a catalyst for organic synthesis, such as in the synthesis of dye blue. In the pharmaceutical industry, it can be used as astringents, anticaries agents, anticoagulants, antiperspirants, and hemostatic agents. Additionally, in the oil industry, crystalline aluminum can be used as a mud stabilizer in oil well drilling and for treating oil-contaminated wastewater. Please note that crystalline aluminum can be irritating to the skin, eyes, and mucous membranes, and inhalation can cause coughing and respiratory irritation. During production and use, it is crucial to adhere to safety protocols, ensure good ventilation in the work environment, wear protective gear, and avoid direct contact. In case of accidental contact, rinse with clean water immediately and seek medical assistance.