Alkylamine composition and method for storing said alkylamine composition
The alkylamine composition of the present disclosure contains: an alkylamine represented by the following formula (1) in an amount of 99.5% by volume or more; and water in an amount of 10 ppm by mass or more and 100 ppm by mass or less: wherein N is a nitrogen atom; R 1 is a C1-C10 hydrocarbon group optionally having a ring, a heteroatom, or a halogen atom; R 2 and R 3 are each independently a hydrogen atom or a C1-C10 hydrocarbon group optionally having a ring, a heteroatom, or a halogen atom; provided that the hydrocarbon group, when it has a carbon number of 3 or more, may have a branched chain structure or a ring structure and that the heteroatom in the hydrocarbon group is a nitrogen atom, an oxygen atom, a sulfur atom, or a phosphorus atom; further, R 1 and R 2 , when both of them are hydrocarbon groups having a carbon number of 1 or more, may be directly bonded to each other to form a ring structure; further, R 1 or R 2 , which is directly bonded by a double bond to form a ring structure, may form an aromatic ring in the absence of R 3 ; R 1 , R 2 , and R 3 may be hydrocarbon groups which are the same as or different from one another; and R 1 has at least one hydrogen atom at α carbon bonded to the nitrogen atom.
1 . An alkylamine composition comprising:
an alkylamine, which is n-butylamine and in an amount of 99.5% by volume or more; and
water in an amount of 30 ppm by mass or more and 100 ppm by mass or less.
2 . The alkylamine composition according to claim 1 , further comprising oxygen in an amount of 1 ppm by volume or more and 1000 ppm by volume or less.
3 . The alkylamine composition according to claim 1 ,
wherein the alkylamine composition contains the alkylamine in an amount of 99.9% by volume or more.
4 . A method for storing an alkylamine composition, comprising:
filling a container with an alkylamine composition; and
storing the container filled with the alkylamine composition at 10° C. or higher and 45° C. or lower,
wherein the alkylamine composition comprises:
an alkylamine, which is n-butylamine and in an amount of 99.5% by volume or more; and
water in an amount of 30 ppm by mass or more and 100 ppm by mass or less.
5 . The method for storing an alkylamine composition according to claim 4 ,
wherein an increase in an imine compound is not more than 100 ppm by volume even after storage at 25° C. for a month in the storing.
6 . The method for storing an alkylamine composition according to claim 4 ,
wherein the container is made of stainless steel, manganese steel, nickel steel, or chrome molybdenum steel.
7 . The method for storing an alkylamine composition according to claim 4 , wherein the alkylamine composition further comprises oxygen in an amount of 1 ppm by volume or more and 1000 ppm by volume or less.
8 . The method for storing an alkylamine composition according to claim 4 , comprising storing the container filled with the alkylamine composition for more than one month.
9 . The method for storing an alkylamine composition according to claim 4 , wherein after storing the container filled with the alkylamine composition at 25° C. for one month, the alkylamine composition comprises the alkylamine in the amount of is 99.99% by volume or more.
10 . The method for storing an alkylamine composition according to claim 4 , wherein the alkylamine composition comprises the water in the amount of 50 ppm by mass or more and 100 ppm by mass or less.