唄診窮徨慕 > 哂猟圻广窮徨慕 > scientific secrets >

及2嫗

scientific secrets-及2嫗

弌傍�� scientific secrets 忖方�� 耽匈4000忖

梓囚徒貧圭�鮗� ○ 賜 ★ 辛酔堀貧和鍬匈��梓囚徒貧議 Enter 囚辛指欺云慕朕村匈��梓囚徒貧圭�鮗� ● 辛指欺云匈競何��
!!!!隆堋響頼��紗秘慕禰厮宴和肝写偬堋響��



mercury。 This powder and dissolving liquid are used in the same manner as 
in the above method of gold plating。 These excellent methods of silvering 
and gilding were discovered in June 1860�察�by the great French chemist 
Baldooshong of Paris France。 It is far superior to any other method ever 
discovered�察�and will eventually take the place of all。






8。 ELECTRO GOLD PLATING ´ USUAL METHOD
Take a 2 50c。 piece of gold�察�and put it into a mixture of 1 ounce of 
nitric and 4 ounces of muriatic acids�察。�glass vessels only are to be used 
in this work�撮� when it is all cut dissolve 1/2 an ounce of sulphate of 
potash in one pint of pure rain water�察�and mix the gold solution�察�stirring 
well�察�then let stand and the gold will be thrown down�察�then pour off the 
acid fluid�察�and wash the gold in two or three waters�察�or until no acid is 
tasted by touching the tongue to the gold。 Now dissolve one ounce of 
cyanuret of potassium in one pint of pure rain water�察�to which add the 
gold�察�and it is ready to use。 Clear the article to be plated from all dirt 
and grease with whiting and a good brush�察�if there are cracks it may be 
necessary to put the article in a solution of caustic potash。 At all 
events every particle of dirt and grease must be removed�察�then suspend the 
article in the cyanuret of gold solution�察�with a small strip of zinc cut 
about the width of a common knitting needle�察�hooking the top over a stick 
which will reach across the top of the vessel or bottle holding the 
solution。 If the zinc is too large the deposit will be made so fast that 
it will scale off。 The slower the plating goes on the better�察�and this is 
arranged by the size if the zinc used。 When not using the plating fluid 
keep it well corked and it is always ready to use�察�bearing in mind that it 
is poison as arsenic�察�and must be put high out of the way of children�察�and 
labelled poison�察�although you need have no fear using it�察�yet accidents 
might arise it its nature were not known。

9。 ELECTRO SILVERING ´ USUAL METHOD
This is done every way the same as gold plating ��using coin�� except that 
rock salt is used instead of the cyanuret of potassium to hold the silver 
in solution for use�察�and when it is of the proper strength of salt it has 
a thick curdy appearance�察�or you can add salt until the silver will 
deposit on the article to be plated�察�which is all that is required。 No 
hesitation need be felt in trying these receipts�察�as they are obtained 
from a genuine source�察�and are in every day use。

                          10。 GOLD PLATING FLUID
Warm six ounces of pure rain water�察�and dissolve in it 2 ounces of cyanide 
of potassium�察�then add a 1/4 ounce oxide of gold�察�the solution will at 
first be yellowish�察�but will soon subside to white�察�then half fill a 
bottle with whiting�察�fill it up with this solution and shake it well�察�you 
may now take a piece of old cotton�察�wet it with the solution�察�rub it well 
over brass�察�copper�察�&c。�察�and it is nicely washed with gold。

                         11。 SILVER PLATING FLUID
Dissolve one ounce of nitrate of silver�察�in crystal�察�in 12 ounces of soft 
water�察�then dissolve in the water two ounces of cyanuret of potash�察�shake 
the whole together and let it stand until it becomes clear。 Have ready 
some 1/2 ounce vials�察�and fill them half full of whiting�察�then fill up the 
bottles and it is ready for use。 The whiting does not increase the coating 
powder ´ it only helps to clear the articles and save the silver fluid by 
half filling the bottles。 The above quantity of materials will cost about 
1。62c。�察�so that the fluid will be about 3 cents a bottle。 It is used in 
the same way as the gold plating fluid。









                       12。 QUICKSILVER PLATING FLUID
Take of quicksilver one ounce�察�one ounce nitric acid�察�one ten cent piece�察�
rain water 1/2 pint to a pint�察�put the three first articles into a tumbler 
together�察�let them stand until dissolved�察�occasionally stirring�察�then add 
the water�察�and it is ready for use。 This is used in the same way as the 
silver and gold plating fluid。

                             13。 TO GILD STEEL
Pour some of the ethereal solution of gold into a wine´glass�察�and dip into 
it the blade of a new penknife�察�lancet�察�razor�察�&c。�察�withdraw the 
instrument and allow the ether to evaporate�察�the blade will then be found 
to be covered with a beautiful coat of gold�察�the blade may be moistened 
with a clean rag or a small piece of very dry sponge dipped into the 
ether�察�and the same effect will be produced。

              14。 TO GILD COPPER�察�BRASS�察�&c。 ´ BY AN AMALGAM
The gilding of these inferior metals and alloys of them is effected by the 
assistance of mercury with which the gold is amalgamated。 The mercury is 
evaporated while the gold is fixed by the application of heat�察�the whole 
is then burnished of left mat in the whole or in part�察�according as 
required。

                      15。 GILDING GLASS AND PORCELAIN
Dissolve in boiling linseed oil an equal weight either of copal or amber�察�
and add as much oil of turpentine as will enable you to apply the compound 
or size thus formed as thin as possible to the parts of the glass intended 
to be gilt�察�the glass is to be placed in a stove till it is so warm as 
almost to burn the fingers when handled。 At this temperature the size 
becomes adhesive�察�and a piece of leaf gold applied in the usual way will 
immediately stick。 Sweep off the superfluous portions of the leaf�察�and 
when quite cold it may be burnished�察�taking care to interpose a piece of 
india paper between the gold and the burnisher。 It sometimes happens when 
the varnish is not very good that by repeated washing the gold wears off�察�
on this account the practice of burning it in is sometimes had recourse 
to�察�for this purpose some gold powder is ground with borax�察�and in this 
state applied to the clean surface of the glass by a camel hair pencil�察�
when quite dry the glass is put into a stove�察�heated to about the 
temperature of an annealing oven�察�the gum burns off�察�and the borax�察�by 
vitrifying�察�cements the gold with great firmness to the glass�察�after which 
it may be burnished。
The gilding upon porcelain is in like manner fixed by heat and the use of 
borax�察�and this kind of ware�察�being neither transparent nor liable to 
soften�察�and thus to be injured in its form in a low red heat�察�is free from 
the risk and injury which the finer and more fusible kinds of glass are 
apt to sustain from such treatment。 Porcelain and other wares may be 
platinized�察�silvered�察�tinned�察�or bronzed�察�in a similar manner。









                      16。 GILDING THE EDGES OF PAPER
The edges of the leaves of books and letter paper are gilded whilst in a 
horizontal position in the bookbinder's press or some arrangement of the 
same nature�察�by first applying a composition formed of four parts of 
Armenian´bole and one of candied sugar�察�ground together with water to a 
proper consistence�察�and laid on by a brush with the white of an egg。 This 
coating�察�when nearly dry is smoothed be the burnisher�察�it is then slightly 
moistened by a sponge dipped in clean water and squeezed in the hand�察�the 
gold leaf is now taken up on a piece of cotton from the leathern cushion 
and applied on the moistened surface�察�when dry it is to be burnished by 
rubbing the burnisher over it repeatedly from end to end�察�taking care not 
to wound the surface by the point。

                17。 PROFESSOR WORTS' AMALGAM FOR SILVERING
This is the only means yet discovered for silvering iron directly�察�yet it 
is not so lasting as some of the other processes。 Take quicksilver and the 
metal potassium�察�equal parts by volume�察�put them together in a tumbler�察�
and if both metals be good there will be a brisk ebullition�察�which 
continues until an amalgam of the two is formed�察�then add as much 
quicksilver as there is of the amalgam�察�let it work till thoroughly mixed�察�
and it is ready for use。 This amalgam you may apply with a cloth to any 
metal�察�even iron�察�though it be a rusty bar�察�and you have it neatly 
silvered over。

18。 FOR COPPERING IRON
This is the latest method�察�and that now in use。 To a solution of sulph

卦指朕村 貧匯匈 和匯匈 指欺競何 壘��0�� 家��0��

低辛嬬浪散議