Is there any way to reduce boiling point of water by adding any chemicals?
You can reduce the boiling point of an aqueous mixture by adding a solvent with a high vapor pressure. For instance adding ethanol to the solution will reduce the boiling point of the mixture, but what you will be evaporating (distilling) will be an azeotrope of ethanol/water which is 95% ethanol and 5% water. The water-ethanol azeotrope distills at 78 C. Likewise, the benzene-water azeotrope distills at 69 C (9% water) and the toluene-benzene azeotrope distills at 84 C (20% water). The toluene and benzene can be recovered after the azeotrope cools because they are immiscible with water. These azeotropes are commonly used in organic chemistry but are probably not useful for you. Benzene and toluene are hazardous materials and can’t be released into the environment. Probably in the long run, this will be more expensive due to costs of the solvents and disposal fees than removing the water under reduced vacuum. This is the procedure that is done in the production of sugar from sugar cane
