Platinum Boat: Cut from Foil and Bent over a Brass Former (Blair, 1888)

A small trough of platinum foil that carries a sample into a combustion tube. Andrew Blair (1888): "This boat is made by cutting a piece of platinum-foil in the shape shown in Fig. 65, and bending it up over a brass former into the shape shown in Fig. 64." His pattern is 3.5 long, 1.3 wide at one end and 1.07 at the other, with tabs at each end; the figure does not mark the units. Foil thickness and the former are not given. Source: A. A. Blair, The Chemical Analysis of Iron (1888), p. 129. Picture: Figs. 64-65.

初学者

Unknown

说明

Read Blair

"This boat is made by cutting a piece of platinum-foil in the shape shown in Fig. 65, and bending it up over a brass former into the shape shown in Fig. 64."

Cut the blank

Cut platinum foil to the pattern of Fig. 65: 3.5 long between the end tabs, 1.3 wide at one end tapering to 1.07 at the other, with a tab .5 wide at the wide end and .37 wide at the narrow end, each flanked by V-notches. The figure does not mark the units, and the foil thickness, and how the foil is made, are not given (unknown).

此步骤所需材料：

铂1 foil

所需工具：

铁皮剪

未知成形方法

未知尺寸

Bend it over the former

Bend the blank up over a brass former into the trough of Fig. 64, folding the end tabs up to close the ends. The shape of the former, and how it is made, are not given (ours: brass round bar as its stock).

所需工具：

黄铜圆棒

未知尺寸

Use

Blair opens out the sides to slide in a moist carbonaceous residue, bends them back into shape, dries the boat and contents at 100 °C, and pushes it into the porcelain or platinum tube to burn off the carbon.