ANS:B - tricresyl phosphate

The chemical formula (𝐶𝐻3𝐶6𝐻4)3𝑃𝑂4(CH3​C6​H4​)3​PO4​ corresponds to tricresyl phosphate. Tricresyl phosphate is an organophosphate compound commonly used as a plasticizer, flame retardant, and lubricant additive. It is not directly related to any of the listed fertilizers. Tricresyl phosphate (TCP) is an organophosphate compound with the chemical formula (𝐶𝐻3𝐶6𝐻4)3𝑃𝑂4(CH3​C6​H4​)3​PO4​. Here's an explanation of tricresyl phosphate:

1. Chemical Structure: Tricresyl phosphate consists of three cresyl groups (methylphenyl groups) attached to a phosphate group. The cresyl groups are derived from cresol, which is a mixture of methylphenols. The phosphate group consists of phosphorus bonded to four oxygen atoms, one of which is bonded to the central phosphorus atom and the other three are bonded to the phenyl groups.
2. Properties: Tricresyl phosphate is a colorless to pale yellow liquid with a slightly fruity odor. It is insoluble in water but soluble in organic solvents such as benzene, toluene, and ethanol. It has a high boiling point and is stable under normal conditions.
3. Uses:
   • Plasticizer: Tricresyl phosphate is commonly used as a plasticizer in the production of various types of plastics, including cellulose acetate, celluloid, and PVC (polyvinyl chloride). It imparts flexibility and durability to the plastic products.
   • Flame Retardant: TCP is also used as a flame retardant additive in plastics, rubber, and textiles. It helps to reduce the flammability of these materials by inhibiting the combustion process and delaying the spread of flames.
   • Lubricant Additive: Tricresyl phosphate is employed as a lubricant additive in industrial applications to reduce friction and wear between moving parts. It forms a thin film on the surfaces, providing lubrication and improving the efficiency of machinery.
   • Other Applications: TCP is utilized in the synthesis of other chemicals and as a solvent for various purposes.
4. Safety Considerations: Tricresyl phosphate is considered toxic and potentially harmful if ingested, inhaled, or absorbed through the skin. Exposure to TCP can cause irritation to the eyes, skin, and respiratory tract. Long-term exposure may lead to adverse health effects, including neurological and reproductive disorders. Therefore, appropriate safety precautions should be taken when handling tricresyl phosphate.

Overall, tricresyl phosphate is a versatile compound with diverse industrial applications, particularly as a plasticizer, flame retardant, and lubricant additive. Despite its utility, proper handling and safety measures are essential due to its potential toxicity.