For people who want to extract compounds from solids, the rotary evaporator is the machine that they need. The linear motion of the lower rotor and upper rotor combine to produce a circular motion which forces a gas or vapor against the surface of a rotating cooled solid. The cool surface causes a phase change, in which the gas or vapor condenses into liquid form.Protect your plants from cold and frost with the only water bath available in the market today. With a built-in thermostat that automatically monitors and regulates the water temperature, you can be sure that your plants are getting the perfect temperature for optimal growth. It is also equipped with a LED indicator to let you know about the bath's condition at all times. The water bath is also portable and easy to install, so you can take it