SILICA POWDER STORAGE PACKAGE

To provide a silica powder storage package in which a recovery property of silica powder when a bottomed container is reversed is enhanced.SOLUTION: A silica powder storage package at least includes: a bottomed container 21 in which one end side opens and the other end side is closed; and silica powder PS stored in the bottomed container 21. The bottomed container 21 includes: a hollow cylinder-shaped cylindrical part 22; and a bottom part 23 being connected to the cylindrical part 22, and for closing the other end side of the cylindrical part 22. In a longitudinal cross section of the bottomed container 21 cut along a center line CL of the cylindrical part 22, when a virtual straight line connecting a throttle starting point A where an internal width dimension of the bottomed container 21 starts to become narrow toward the other end side, and a bottom point B which is an intersection of the center line CL and a bottom part inner wall surface 23in is defined as an inclination reference line L, in the longitudinal cross section, the bottom part inner wall surface 23in is a curved shape which protrudes toward the other end side, and also, an inclination angle θ of an inclination reference line L with respect to a cylindrical part inner wall surface 22in is larger than 90° and smaller than 180°.SELECTED DRAWING: Figure 1 【課題】有底容器を逆さまにした際のシリカ粉体の回収性が高められたシリカ粉体収納パッケージを提供する【解決手段】一端側が開口し他端側が閉塞した有底容器２１、及び有底容器２１内に収納されたシリカ粉体ＰＳを少なくとも備える。有底容器２１は、中空円筒状の筒状部２２と、筒状部２２に連設され筒状部２２の前記他端側を塞ぐ底部２３とを有し、筒状部２２の中心線ＣＬに沿って切断した前記有底容器２１の縦断面において、前記他端側になるにつれて有底容器２１の内法の幅寸法が狭くなり始める絞り開始点Ａと、中心線ＣＬと底部内壁面２３ｉｎとの交点である底点Ｂと、を結ぶ仮想の直線を、傾斜基準線Ｌとしたとき、前記縦断面において、底部内壁面２３ｉｎが前記他端側に向かって凸となる湾曲形状であると共に、筒状部内壁面２２ｉｎに対する傾斜基準線Ｌの傾斜角度θが、９０°より大きく、 １８０°未満である。【選択図】図１