Chemical container

A chemical container comprising:

• a container body having a storage compartment configured to store a chemical;
• an exhaust port disposed at one side of the container body, the exhaust port being configured to connect the storage compartment and an outside of the container body to each other such that fluid movement therebetween is possible;
• an exhaust tube disposed in the storage compartment so as to be connected to the exhaust port such that fluid movement therebetween is possible;
• and
• an exhaust buoyancy unit having a buoyancy body disposed in the storage compartment being connected to the exhaust tube so as to float on the chemical stored in the storage compartment, an exhaust channel provided inside the buoyancy body, the exhaust channel being configured to connect the storage compartment and the exhaust tube to each other such that fluid movement therebetween is possible, and a filter membrane coupled to the buoyancy body, the filter membrane being configured to transmit gas through the exhaust channel and to block the chemical, thereby preventing the chemical from passing therethrough, wherein
• the exhaust buoyancy unit comprises an inlet provided at one side of the buoyancy body so as to be open to the storage compartment, a chamber provided in the buoyancy body so as to be connected to the inlet, and a passage provided at another side of buoyancy body so as to be connected to the chamber, the passage constituting the exhaust channel together with the inlet and the chamber,
• the filter membrane is disposed so as to cover the inlet,
• the buoyancy body comprises an upper body having the inlet provided at one side thereof and a lower body having the passage provided at one side thereof, the lower body being coupled to the upper body so as to define the chamber together with the upper body,
• a tube connection portion, to which the exhaust tube is connected, is provided at an outer surface of the lower body so as to protrude therefrom,
• the passage extends from the lower body to an interior of the tube connection portion, and
• the exhaust buoyancy unit comprises a weight disposed adjacent to the tube connection portion, the weight being configured to deviate a center of gravity of the buoyancy body from a center of the buoyancy body such that the filter membrane remains located higher than the chemical with the buoyancy body floating on the chemical.