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US 12,535,185 B2Granted
Corrosive-gas-mixture-filled container and corrosive gas composition
AssigneeSumitomo Seika Chemicals Co., Ltd.
InventorsRyoichiro Sakai, Hiroki Yamauchi
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Abstract
A corrosive-gas-mixture-filled container includes a sealed container, and a gas filled in the sealed container and containing a corrosive gas. In the corrosive-gas-mixture-filled container, a concentration of water in a vapor phase in the gas is 400 mol ppm or less, the sealed container includes a cylindrical body portion including a metal layer having an inner surface in contact with a corrosive gas mixture, and a maximum height of a surface roughness of the inner surface of the metal layer of the cylindrical body portion is 50 μm or less.
Claims16
A corrosive-gas-mixture-filled container comprising:
- a sealed container made of a metal;
- and
- a corrosive gas mixture that is filled in the sealed container and comprises:
- a corrosive gas and water in a vapor phase,
- wherein a concentration of the water in the corrosive gas mixture is 400 mol ppm or less,
- the sealed container includes a cylindrical body portion, and
- a maximum height of a surface roughness of an inner surface of the cylindrical body portion is 50 μm or less.
4 more elements
Dependencies are inferred from the claim text.