Heat-insulating container provided with vacuum heat-insulating material, vacuum heat-insulating material, and tanker provided with heat-insulating container

A vacuum heat-insulating material which is employed in a heat-insulating container being used under the environment where exposure to moisture of liquid is possible, and is used in the heat-insulating container including a container main body having a substance holding portion which holds a substance at a temperature which is lower than a normal temperature on an inside of the substance holding portion, and a heat-insulating structure body which is provided in the container main body and uses at least a vacuum heat-insulating material, the material comprising:

• an outer cover material;
• and
• an inner member which is sealed in a closed and decompressed state on an inside of the outer cover material,
• wherein the inner member is configured of a material which does not generate hydrogen in a case of coming into contact with the moisture of the liquid,
• wherein the substance is combustible liquefied gas of which a temperature is equal to or lower than the normal temperature by 100° C. or more,
• wherein the inner member included in the vacuum heat-insulating material includes a core material having heat-insulating properties and an adsorbent which is capable of adsorbing gas on the inside of the outer cover material, and
• wherein the adsorbent is processed to have a shape of which a ratio of a sectional area (CS) with respect to a thickness (T2) is within a range of T2:CS=1:100 to 1:250.