LEAD. 
§ 809.] 
633 
The ointment ( Unguentum plumbi subacetatis) contains 12-5 per cent, 
of the strong solution of lead subacetate mixed with wool fat and 
paraffin. 
The solution of subacetate of lead ( Liquor plumbi subacetatis) is made 
by dissolving 250 grms. of the subacetate and adding 175 grms. of lead 
oxide in 750 millilitres of water, digesting for forty-eight hours, filtering, 
and making up to 1000 millilitres. 
A dilute solution of the stronger, under the name of Liquor plumbi 
subacetatis dilutus, and commonly called Goulard water, is prepared 
by mixing 12’5 millilitres of the solution and 1000 millilitres of distilled 
water. 
Glycerin of Lead Subacetate is made with equal parts of strong 
solution of lead subacetate and glycerin. The strong solution is 
evaporated to dryness, the glycerin is then added, and the salt dissolved 
by warming. When cool, the liquid is diluted with water until the specific 
gravity is 148. 
Carbonate of Lead. —The ointment (Unguentum plumbi carbonatis) 
should contain about 12-5 per cent, of the carbonate, and the rest simple 
ointment. 
2. Quack Nostrums, etc.:— 
The quack medicines composed of lead are not very numerous. 
Liebert’s Cosmetique Infaillible is said to have for its basis nitrate of lead. 
One of “ Ali Ahmed’s Treasures of the Desert,” viz. the antiseptic malagma, 
is a plaster made up of lead plaster 37-5 per cent., frankincense 25 per cent., salad 
oil 25 per cent., beeswax 12-5 per cent. 
Lewis’ Silver Cream contains white precipitate and a salt of lead. 
Goulard’s Balsam is made by triturating acetate of lead with hot oil of turpentine. 
There are various ointments in use made up of litharge. Some herbalists in the 
country (from cases that have come under the writers’ own knowledge) apply to 
cancerous ulcers, etc., a liniment of linseed and other common oils mixed with litharge 
and acetate of lead. 
Acetate of lead may also be found as a constituent of various eye-waters. 
3. Preparations of Lead used in the Arts, etc.:— 
Ledoyen’s Disinfecting Fluid has for its basis nitrate of lead. 
In various hair-dyes the following are all used :—Litharge, lime, and starch ; lime 
and carbonate of lead ; lime and acetate of lead ; litharge, lime, and potassic bi¬ 
carbonate. The detection of lead in the hair thus treated is extremely easy ; it may 
be dissolved out by dilute nitric acid. 
Lead Pigments. —The principal pigments of lead are white, yellow, and red. 
White Pigments :— 
White Lead, Flake White Ceruse, Mineral White, are so many different names 
for the carbonate of lead already described. 
Newcastle White is white lead made with molasses vinegar. 
Nottingham White. —White lead made with alegar (sour ale), often, however, 
replaced by permanent white, i.e. sulphate of baryta. 
Miniature Painters’ White, White Precipitate of Lead, is simply lead sulphate. 
Pattison’s White is an oxychloride of lead, PbCl 2 PbO. 
