Solid xylylenediamine in container, production method thereof, and method for storing xylylenediamine

Abstract

A solid xylylenediamine solidified in a container is extremely excellent in storage stability as compared with a liquid xylylenediamine, and is less degraded by discoloration even when stored in an atmosphere containing oxygen. By charging a liquid xylylenediamine into a container, solidifying the liquid xylylenediamine into a solid xylylenediamine in the container under cooling without delay after the charging, and storing the solid xylylenediamine in the container while maintaining the xylylenediamine in a solid state, the xylylenediamine is stored for a long period of time without causing deterioration of quality such as discoloration.

1 . A solid xylylenediamine in a container which is produced by solidifying a liquid xylylenediamine having an APHA color number of 20 or less in the container, the solid xylylenediamine having an APHA color number of 20 or less when measured after stored in a solid state and then melted into a liquid state.  
     
     
         2 . The solid xylylenediamine in a container according to  claim 1 , wherein an oxygen concentration in a headspace in the container is 0.01 to 21% by volume.  
     
     
         3 . The solid xylylenediamine in a container according to  claim 1 , wherein the xylylenediamine is m-xylylenediamine.  
     
     
         4 . The solid xylylenediamine in a container according to  claim 1 , wherein the xylylenediamine is a mixture of m-xylylenediamine and p-xylylenediamine having a solidification point of 30° C. or lower.  
     
     
         5 . A method for producing a solid xylylenediamine in a container, which comprises a step of charging a liquid xylylenediamine having an APHA color number of 20 or less into the container, and a step of solidifying the liquid xylylenediamine in the container by cooling.  
     
     
         6 . The method according to  claim 5 , wherein the liquid xylylenediamine is solidified in the container after replacing a headspace in the container with an inert gas.  
     
     
         7 . The method according to  claim 5 , wherein the liquid xylylenediamine is solidified within 10 days after charged into the container.  
     
     
         8 . A method for storing xylylenediamine, which comprises: 
 charging a liquid xylylenediamine having an APHA color number of 20 or less into a container;    solidifying the liquid xylylenediamine into a solid xylylenediamine in the container by cooling; and    storing the solid xylylenediamine in the container while keeping the xylylenediamine in a solid state.    
     
     
         9 . The method according to  claim 8 , wherein an oxygen concentration in a headspace in the container is 0.01 to 21% by volume.