GAS-FILLED CONTAINER AND METHOD OF STORING (E)-1,1,1,4,4,4,-HEXAFLUORO-2-BUTENE
There is provided a gas-filled container in which the purity of filled (E)-1,1,1,4,4,4-hexafluoro-2-butene is less likely to decrease over a long term. The gas-filled container includes: a filled container filled with (E)-1,1,1,4,4,4-hexafluoro-2-butene. A part in contact with the filled (E)-1,1,1,4,4,4-hexafluoro-2-butene of the filled container is formed of a metal having a copper concentration of less than 0.5% by mass.
1 . A gas-filled container comprising:
a filled container filled with (E)-1,1,1,4,4,4-hexafluoro-2-butene, wherein
a part in contact with the filled (E)-1,1,1,4,4,4-hexafluoro-2-butene of the filled container is formed of a metal having a copper concentration of less than 0.5% by mass.
2 . The gas-filled container according to claim 1 , wherein the part in contact with the filled (E)-1,1,1,4,4,4-hexafluoro-2-butene of the filled container is formed of a metal having a copper concentration of less than 0.4% by mass.
3 . The gas-filled container according to claim 1 or 2 , wherein the metal is steel.
4 . The gas-filled container according to claim 1 or 2 , wherein the metal is at least one of manganese steel and chromium molybdenum steel.
5 . The gas-filled container according to any one of claims 1 to 4 , wherein the copper concentration is measured by X-ray photoelectron spectroscopy.
6 . The gas-filled container according to any one of claims 1 to 5 , wherein the filled container includes:
a cylinder containing the (E)-1,1,1,4,4,4-hexafluoro-2-butene; and
a valve configured to open and close a flow passage for causing the (E)-1,1,1,4,4,4-hexafluoro-2-butene inside the cylinder to flow to an outside.
7 . The gas-filled container according to any one of claims 1 to 6 , wherein a purity of the (E)-1,1,1,4,4,4-hexafluoro-2-butene to be filled is 99.90% by volume or more.
8 . A method for storing (E)-1,1,1,4,4,4-hexafluoro-2-butene comprising:
filling (E)-1,1,1,4,4,4-hexafluoro-2-butene into a container for storage, wherein
a part in contact with the filled (E)-1,1,1,4,4,4-hexafluoro-2-butene of the filled container is formed of a metal having a copper concentration of less than 0.5% by mass.
9 . The method for storing (E)-1,1,1,4,4,4-hexafluoro-2-butene according to claim 8 , wherein the part in contact with the filled (E)-1,1,1,4,4,4-hexafluoro-2-butene of the filled container is formed of a metal having a copper concentration of less than 0.4% by mass.
10 . The method for storing (E)-1,1,1,4,4,4-hexafluoro-2-butene according to claim 8 or 9 , wherein the metal is steel.
11 . The method for storing (E)-1,1,1,4,4,4-hexafluoro-2-butene according to claim 8 or 9 , wherein the metal is at least one of manganese steel and chromium molybdenum steel.
12 . The method for storing (E)-1,1,1,4,4,4-hexafluoro-2-butene according to any one of claims 8 to 11 , wherein the copper concentration is measured by X-ray photoelectron spectroscopy.
13 . The method for storing (E)-1,1,1,4,4,4-hexafluoro-2-butene according to any one of claims 8 to 12 , wherein a purity of the (E)-1,1,1,4,4,4-hexafluoro-2-butene to be filled is 99.90% by volume or more.