合作
艺术
美容与健康
工艺
文化与历史
娱乐
环境
食品与饮料
逆向工程
科学
体育
技术
可穿戴设备
Sodium Thiosulfate: Soda and Sulphur Fusion (Thorpe, 1913)
A small batch of 'hypo' (photographic fixer) from soda and sulphur: dry sodium carbonate is fused with a third of its weight of flowers of sulphur in an open porcelain basin, stirred so air reaches every part, then dissolved, boiled with more sulphur and crystallised.
The sodium sulphide formed first takes up oxygen from the air and turns, with a faint glow, into thiosulphate.
Source: T. E. Thorpe, Dictionary of Applied Chemistry vol. V (1913), p. 29. Picture: the book's text.
中级
Unknown
说明
1
1
Mix soda and sulphur
Mix soda and sulphur
Weigh about 1 lb of pure, well-dried sodium carbonate and mix it with about one-third its weight of flowers of sulphur.
此步骤所需材料：
碳酸钠（纯碱）1 about 1 lb, well dried
硫磺粉1 about 1/3 the weight of soda所需工具：
精密数字天平2
2
Fuse in the open basin
Fuse in the open basin
Heat the mixture in a porcelain basin to the melting point of sulphur for some time, stirring well all the while so every part meets the air. The sulphide formed absorbs oxygen and turns, with a feeble glow, into sodium thiosulphate.
所需工具：
蒸发皿
本生灯
玻璃搅拌棒3
3
Dissolve, boil and crystallise
Dissolve, boil and crystallise
When cold, dissolve the mass in water, boil it with sulphur for some time, and concentrate the liquid by evaporation to the crystallising point. A very pure product can be had this way.
此步骤所需材料：
水1 个硫磺粉1 个所需工具：
蒸发皿本生灯玻璃搅拌棒此蓝图制作
CC0 公共领域
此蓝图以 CC0 协议发布。你可以自由复制、修改、分发和使用此作品，无需征得许可。
通过购买蓝图中的产品支持创客，他们将获得 创客佣金 （由供应商设定），或创建此蓝图的新版本并将其作为连接包含在你自己的蓝图中以分享收入。