Answer to Question #26686 in Inorganic Chemistry for Brooke Nedland

Question #26686
I'm doing an endothermic chemical reaction using Barium Hydroxide Octahydrate and Ammonium Nitrate. The beaker plug has a hole drilled out to fit the thermometer but the hole is slightly too big. What is a putty/clay/sticky tack that I could use to plug the hole that won't react with the chemicals being used?
Expert's answer
Try using silicone sealants. Silicone Grease certainly suit you to solve your problem. Silicone Sealants - viscous flow of low molecular weight compounds on the basis of silicone rubber, curing at room temperature. Used to fill cracks and cavities to seal and protect against various environmental factors, as well as for bonding various surfaces together. Tube with a silicone sealant, tip and cap for him.

The main mineral properties:
- excellent water resistance
- elasticity
- Good adhesion to most materials
- High heat resistance and cold resistance (from -60 to+300 ° C)
- Resistance to solar UV
- Resistance to aggressive media
- longevity

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