Tin. 
407 
union of part, if not all, of the oxygen of the aurum mush 
vum, with that portion of the sulphur which flies off as 
sulphureous acid. [2 Aikirts Diet. 430 — 433* 
The old process is as follows. Take 12 ounces of tin : 
7 ounces flour of sulphur : 6 ounces sal-ammoniac : 6 
ounces mercury. Melt the tin, add the mercury to it* 
When cold, powder the amalgam, and triturate it accu- 
rately with the sulphur and sal-ammoniac. Put them in 
a matrass, set it in a sand ba<h, keep up a gentle fire for 
four or five hours, then encrease it, but not beyond the 
degree necessary to sublime the volatile parts, otherwise 
the aurum musivum will be partly melted and spoiled. 
If the fire be properly managed, these quantities will af- 
ford 1 ounce, 4 drams and 2 scruples of volatile liver of 
sulphur : 13 ounces, 2 drams of sublimed muriat of tin 
and cinnabar, and there will remain at the bottom of the 
matrass 16 ounces of aurum musivum. 
Woolf says that the following proportions give 17 1-2 
ounces instead of 16 ; viz. tin 12, sulphur 7, sal-ammo- 
niac 3, and mercury 3. 
Another recipe. (Woolf.) Saturate melted tin with 
sulphur, by throwing the sulphur in at three or four im 
tervals. You may use one- third or one-fourth of sulphur 
by weight, but according to Proust, the tin will not take 
up more than about 15 per cent. Of this sulphurated 
tin, take 10 ounces and mix it with 16 ounces of corro- 
sive sublimate. You must have a cover over the vessel 
in which you triturate them together. Put the mixture 
into a retort, or matrass, or large crucible, having another 
inverted over it and luted, with a hole in the top. Cal- 
cine with a moderate fire for 6 hours, then keep the re- 
tort red hot for three hours. This produces aurum mu- 
sivum of superior quality. Indeed the best sort seems 
not to be obtained without using mercury or some pre- 
