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Analytical chemist.

Recipes for the colour, paint, varnish, oil, soap and drysaltery trades

. (page 2 of 24)




CARMINE CRIMSON 1.



Cochineal
Tartar .

Sulphate of alum
Cream of tartar
Ammonia
Potash alum



(^>r.


I.I..




1-J




â–  >




â–  i




10




â– 21




11



18



riGMENTS.



Qr.




Lb.
20





2ij





H





5


1


26


3






SCARLET CARIVIINE 1.

Cochineal
Tartar .
Alum sulphate
Cream of tartar
Ammonia
Alum potash

Boil up 40 to 50 gallons of water, w
add the cochineal then continue the boiling for ten minutes
longer, pass through hne sieve, 80 mesh. Throw into the
cochineal liquor the tartar, gently turn on the steam for three
minutes, then turn off again, add gently the powdered alum
sulphate ; let steam be off again for five minutes, then run into
bottom vat and add gently the cream of tartar ; let stand until
settled, run off top liquor, and add base made from the potash
alum and annnonia.



hen at boiling point



RICH CARMINE 2.



Cochineal
Tartar .
Alum sulphate
Cream of tartar
Ammonia
Alum potash



RICH SCARLET LAKE.



Cochineal
Tartar .

Sulphate of alum
Cream of tartar
Ammonia
Potash alum
English vermilion



Qr.

1


Lb.

2





2f





U





5


1


26


3





Qr.

1


Lb.
12





5





3





10





27


1


14





T



PIGMENTS. Ul

CARNATION LAKE.

Wiittr . .42 gallons

Cochineal 121b.

Tartar lA lb.

Alum Jib.

Boil up WiiU-r, and add cochin».'al ; Ixjil now tor tiftoiMi
minutes, turn off" steam and add the tartar, thiMi Ciirefully
add aluMi ; if it sliould not ri.si-, boil up until it <loes, pa.s.s
throui^h sit'Vf an<l .stand for two days, and a<ld \\ II). nitrate
of tin.

PURE CARMINETTA.

Oran^'e lead .....

Barytes .....

Eosine ......

Tannic acid .....

Tartar emetic ....

Dissolve Eosine in 24- <^allons of water in top vat, in hott^jm
vat mix in 45 gallons of watei', orant^e lead and liarytes to form
a creamy paste, drop Eosine into .same and stir well. Then
dissolve acetate of lead, or the tannic acid, and dnjp also into
bottom vat; lastly, dissolve the tartar emetic an<l run down,
then stir Wfll for twenty minutes, till up vat with water (200
gallons), filter next day, and press.

No. 1 CARIVIINETTA.



Orantie lead .
Eosine L.
Acetate of lead
Barvtes



Cwt.
1


Qr.
2


Lb.



1














12








12








12



'wt.


(Jr.


Lb,


1














15








20








14



20



PIGMENTS.

CARMETTA PURE.



Orange lead
Eosine L.
Acetate of lead



ROYAL REDS.



Cwt.
1







Cwt.
1



Qr.







Qr-





Lb.


15

20



Lb.




Orange lead ......

Eosine L 5

Acetate of lead 7*

Sulphate of alum ..... 4

Put orange lead into bottom vat, and add sufficient water
to form a thick paste. Dissolve acetate of lead in 40 gallons
of water in top vat, and run down into orange lead base, stir
well. Dissolve Eosine dye in stone jar in 20 to 30 gallons of
water and drop down into base, stirring well all the time. Then
run in alum solution ; when all is in stir for about ten minutes,
fill up vat with water, give two washings, filter and press.

DEEP ROYAL RED.

Orange lead .
Eosine L. .
Acetate of lead
-p I Carbonate of soda
] Alum sulphate .

When a good fracture is required the addition of this base
will give a good crispness to the Royal reds when sold in drops.

DEEP ROYAL RED, No. 2.



Orange lead
Eosine L.
Barytes white
Acetate of lead



Cwt.

1


Qr.




Lb









12








15





1








1






Cwt.

1


Qr.



Lb.









12





2











15



PIOMKNTS.



•21



ROYAL RED. MIDDLE, No.



Orange lead
Eosine L.
Acet4ite of lead
Sulpliate of aluininii



Cwi.
1


Qr.



Lb









H








12





u


(i



MIDDLE ROYAL RED, No. 2.



Orange lead ....




gr.

2


Lb.
14


Barytes .....




1


14


Acetate of lead ....







12


Eosine L. . . . . .







8


ROYAL RED.








Orange lead ....


Cwt.

1


gr.



Lb.



Eosine L. . . . . .








•0


.•\cetate of lead ....








7*


Sulphate of alumina








4


Barytes white ....





1






Cwt.



gr.



Lb.






1


12








20








4


()





20



ALIZARINE LAKE RED.

Barytes
.\lizarine

Alumina sulphate .
Acetate of lime
Soda crystals

Well mix the harytcs into KM)
the alizarine in 50 ^alhjns of water, and nm into harytes, .stir
well; next dissolve the alum in 30 pint.s of wati-r, and drop
down also on Ija.se: add acetate of lime pn'vionsjy dis.s<)Ivt'd in
water ( 10 t^^allons). and l»oil upthr wholi- for ahout forty minutes,
then aild j^ently. a little at a tim<'. proportion-" of soda crystals.



i^allons of watt-r, now mix



22 PIGMENTS.

ALIZARINE LAKE.

Lb.
Pure alizarine . . . . . . .15

Alum sulphate ....... 10

Acetate of lime . . . . . . . li

Soda crystals ....... 10

DARK ALIZARINE RED LAKE.

Diffuse 100 llj. of baiytes through 50 gallons of water, add
20 lb. of alizarine, 10 lb. of alumina sulphate, and 2 lb. of
calcium acetate, stir well together, and then allow the mixture
to stand for two or three hours, stirring at intervals to keep
the ingredients well mixed. Heat slowly, so as to take about
two hours to reach the boiling point, and at intervals add
portions of a solution of 10 lb. of soda crystals.

PURE ALIZARINE LAKE.

Mix 5 lb. of ordinar}^ commercial alizarine with 6 gallons
of water, then add 2h lb. of alumina sulphate previously dis-
solved in water, and 8 oz. of calcium acetate also dissolved in
water ; boil the whole together for about an hour, then add 2^
oz. of soda crystals, dissolved in water in small quantities at
a time, at intervals long enough to allow of the subsidence of
the effervescence thus set up. The whole mass is now boiled
for about an hour, then allowed to stand for twent}'-four hours,
filtered, washed and dried. This makes a dark red lake of good
body and staiin'ng power.- The shade or tint will depend upon
the kind of alizarine used.

ALIZARINE SCARLET LAKE.

A very fine lake is made in the following manner : 6f lb.
of alumina .sulphate are dissolved in 20 gallons of water, to
this is added the solution of 1 lb. of calcium chloride in one



I'lf.Nir.N IS. -Ji

jjalloii of water, ami iimiifiliiiti'ly al'tfi- a solutifjii of 4] ll>. of
sotla ash (lisaolve<l in 10 ;;all«)n.s of wator. A prccipitatf nf
alumina is ohtaint'il. mixi-il with soiim- snlphatf of oalciuiii,
this precipitate is colU'Ctt'il ami well w.islwil. It is now fliHiist'.l
throu^^h 10 to I.") M-alloMs of watt'r, ami thfi-e is a<lilr<l :{ jh.
of ali/ariiie, 1 ll». of Turkey re<l oil. ami I^ o/. taiiiiic aciil ; tin-
mixture beint; heateil to from lUO to I<)o F. ami kfpt at that
lieat for about half an hour, wlim ', lb. more of Tui'key rnlcjil is
atldefl. Then the whole mass is boiled foi- on*' hour, after
which the lake is rea<ly for washing; anil <li\in;4;. It is im-
portant that the sulphate of alumina uscil bi- free from iron,
and that during- tbt- jiroeess of making the malt-rials In- krpt
free from contact with the niftal, oi- tht-eolour of thf lake will
be deteriorate* I.

CRIIVISON RED LAKE.

14 lb. of alpha-naphthylamine are ;,a'ntly heated with .'iO
lb. of hydrochloric acid, ami 20 >;allons of water until com-
pletely dissolved. The solution is then slowly poured into 30
gallons of watfi'. Tlu- bi'ta-naj)litliylaminf will br precipitated
as hydrochloride in the form of a fine white or faintly C(jloured
precipitate. This is of no n\omi'nt provided it be tine and not
lump3' in character. Tin- mixtuif must be allowed to become
<juite cold bt'forc ])assini;' on to tin- next sta;;e. A solution of
10 lb. of sodium nitrite in lO^^^illons of cold water is made and
then poured slowly into the alpha-nai»hthylamine mixture,
the whole bein<; kept constantly stirred foi- fiom one-half
to thi'ef-(|uart<'rs of an hour, wh'-n the operation will be ended.
There is next added -M> lb. »jf .soilium acetatt- dissolved in 2')
gallons of water, and l.'>0 lb. of barytes. To this mas.s is
added slowly a solution of 14 lb. l)eta-naphthol in 4 lb. of
cau.stic soda and 30 L^^allons of watfi'. The lake forms at once,
anil is washed, tilter.'d and dried in the usnal manner.



24 PIGMENTS.

SCARLET LAKE.

14 lb. of paranitroaniline are mixed with oO lb. of good
hydrochloric acid (it is best to use the pure acid, as the
impurities in the commercial grades are liable to affect the
brightness of the lake), and 25 gallons of boiling water. This
mixture is well stirre<l until all the paranitroaniline is dissolved,
allowed to cool, 25 gallons of cold water are added, and then
slowly and with constant stirring 10 lb. nitrite of soda dis-
solved in 10 gallons of water is added into the paranitroaniline
mixture. This stage being the most important, special care
should be taken to make the solutions quite cold and to mix the
ingredients slowly. After about one-half to three-quarters of
an hour the preparation will be ready for the next stage. To
the mixture is added 150 lb. of barytes or other white base,
and 30 lb. of acetate of soda dissolved in 25 gallons of water.
Next 14 lb. of beta-naphthol are dissolved with a little heat in
4 lb. of caustic soda (77 per cent.), and 25 gallons of water ;

25 gallons of cold water are then added, and, when the whole
is cold, the beta-naphthol solution is added slowly and with,
constant stirring to the preparation of paranitroaniline. The
scarlet lake forms at once, and can be filtered, washed and
dried in the usual way, but in drying the temperature must
be kept low.

MADDER LAKE.

1 lb. of garancine, and 1 lb. of sodiuu) sulphate are boiled
together in IH pints of water, to the mixture is added 1 lb. of
alum previously dissolved in water, and the mass allowed to
stand for some time for the alum to extract the colouring
principle of the garancine ; the mass is next strained, and
to the clear li(juor is added 1 lb. of lead acetate, lead sul-
phate is precipitated and this is filtered ofi"; on boiling the
clear filtrate the lake formed is collected, washed and dried.



I'KiMKN IS.



2&



CRIMSON LAKE No. 1



Sulphate of aluniinu
Carbonak' of soda
Erythriiie li
Eosine G G F
Barium chloride
Nitrate of lead



CRIMSON LAKE No. 2.

Sulphate of ahuiima
Carbonate of soda
Erythrine B
Eosine G G F
Barium chloride .
Nitrate of lead
Barytes white

.Suli)hate of alumina is dissolved in top vat with 80 j^allons
of water, an<l earhonate of soda in bottom vat in -SO piUons of
water; when thorouylily dissolvetl the alumina solution is run
<lown (jii to the soda solution, stirrin^^ widl the whole time.
Then the Erythrine B and Eosine are dissolved in 80 gallons.
Of water an<l dro])j>ed <lown into base mixture in bottom vat.
Now dissolve barium chloride in U)\) vat, and nitrate of lea<l in
centre vat, an<l lun both down also into bottom vat, stirriii;.;
well. When all is in, till up vat with water, wash three tiiii<s.
an<l Hlter an<l ]iress in the usual way

PURE PERMANENT RED.



C'wt.
1








1














15








7^








14





U


lb


(wt.

1


Qr.




Lb.




1














15








7A








14








18





2






Sulphate of alumina


Cwt.

1


Qr.



Lb



Soda crystals


1








Caustic soda ....





t)


•>


I'iiosphate of soda





1


2.J


Milling' retl G . . ■ •





1






"26 PIG-MENTS.

SCARLET ANTIMONY.

4 U). of tartar emetic and 3 lb. of tartaric acid are dis-
solved in lo o-allons of water, and the solution heated to
40° F., a solution of sodium thiosulphate of 40^ Tw. added,
and the mixture heated to 180° F. The red is gradually pre-
cipitated, and when fully formed is washed with water and
dried.

PLUM LAKE.

100 lb. of barytes, 3 lb. of Acid mauve B., 15 lb. of barium
chloride. This gives a red shade of plum lake.

BLUISH PINK LAKE.

100 lb. of barytes, 3 lb. of Ehodamine, 3 lb. of tartar emetic
and 3 lb. of tannic acid. This makes a lake of a peculiar
shade of bluish pink, which is fairly resistant to exposure to
light and air.

IVIAGENTA LAKE.

100 lb. of barytes, 1 lb. of Magenta, Ih lb. of tartar emetic
and 1^ lb. of tannic acid, make a lake of deep crimson colour.
Mix the barytes, Magenta and tartar emetic with boiling water
and add the tannic acid.

SCARLET LAKE.

Dissolve in the precipitating vat (32 lb. of Glauber's salt,
and 10 lb. of Scarlet F R R, into this solution is run a solution
of 70 lb. of barium chloride, the lake which is precipitated out
is finished in the usual way.

SCARLET LAKE.

.Mix in the precipitation vat ^ lb. of Eosine A, 5 lb. of
Croceine scarlet M, and 33 lb. of Glauber's salt. In separate



PIGMENTS. -2 1.

w&tn dissolve 25 Ih. of bai-iuin cl»lori«lt' and Ifj^. lb. of lead
acetate, when ready rnn the barium chloride suhition into thf
colour mixture, and then run in the l»*ad solution. A very
i)ri^ht scarlet lake is thus obtaim-d.

DEEP CRIIVISON LAKE.

100 lit. lit barytfs. 20 [i». ot AnKUanth, <)<» ll>. of b;ii-iinii
•chloride. A little adtlition of sodium earbonatr compli'tfs tli<'
precipitati(jn. Mix the bar^-tes and Amaranth in sutticieiit
water, then add the baiiuni chloriilc

SCARLET LAKE.

100 lb. of baryt.'s, :U H). of Croceim- scailet M, 10 lb. of
lead acetate. A little ammonia completes the precipitation.
Mix the barytes and C'njceine searli't in \\;it<T ;ind add tin-
lead acetate.

SCARLET LAKE.

100 lb. of liarytes, ,') lb. of Lake scarl.'t U. 20 lb. of b-ad
acetate. Mix the barytes and Lake searlft in water, then add
the le<i<l acetate.

* BLUISH SCARLET LAKES.

100 lb. of barytes, 8 lb. of Lake scarlet 2 K .1. and 10 lb.
of barium chlori<le. IMix the barytes and Lak»- scarb-t with
water and ad<l the barium chloride.

PALE CRIIVISON LAKE.

lOU ill. of bui-ytes, 2 lb. of .Safraniur prima, 2 lb. of tartar
emetic, and 3 lb. of tannic acid. The lakr obtained is a tine
.shade of crimson.



28



PIGMENTS.



DUTCH ROSE PINK.



Sapan wood
Lime .
Alum .
Terra alba .
Paris white .
Acetate of lead



Cwt.

3


Qr.



Lb






1








1





2











2











7



DEEP ROSE PINK.



Sapan wood
Lima wood
Paris white
Alum ,
Lime .



Cwt.

3


Qr.




Lb



3








1


2


20





2


10








12



ROSE PINK.

Sapan wood (150 gallons water) .
Lima wood (100 gallons water)
Paris white .....
Sulphate of alum (50 gallons water)



Cwt.
1



Qr.




Lb.




10
2
2 10



Boil the Sapan and Lima wood well together for three
hours, then strain through fine mesh into bottom vat, now drop
in whiting and stir well, then dissolve alum and run into the
V)ase, stirring gently whilst running in.

If a deeper shade is required, slake 12 lb. of lime and run
into the whole base. Let stand for two days; run off" top
liquor, and drop into drops on trays for the stove to dry at
about 95" F.



I'lC.MKNTS.






LIGHT BRUNSWICK GREEN.






Cwi.

Piussiate of potash ....





Lb.
H


Sulphate of iron .....





.s


Bichromate of potash ....()





4


"Sulphuric aciil





1


Nitrate of lead ..... 1


1


1)


Cari)onate of lead .... 1


1





Bichromate of potash ....


3





Sulphuric acid .....


2


4


Barytes ...... 2








Terra alh;i 2








LIGHT BRUNSWICK GREEN.






Cwt.

Prussiate of potash ....


(ir.




l.h.
16


'.Sulphate of iron .....





1(J


Bichromate of potash ....


(J


2


Sulphuric acid .....





7


Nitrate of lead ..... 1


1





Carbonate of lead .... 1


1


11


Bichromate of potash ....


8


2


Sulphuric acid .....


2





Barytes ...... 4


I)


(J


Terra all)a . 4








IVIIDDLE BRUNSWICK GREEN PURE


..




Cwt.

Prussiate of potash ....


gr.



Lb.
24


Sulphate of iron .....





24


Bichromate of potash ....





5


Sulphuric acid .....





2


Nitrate of lead ..... 1


1





Carbonate of lead .... 1


1





Bichromate of potash ....


A


3


Sulphuric acid . (•


2


4



•20



30



PIGMENTS.



BRUNSWICK GREEN.



Prussiate of potash
Sulphate of iron .
Bichromate of potash
Sulphuric acid
Nitrate of lead
Carbonate of lead
Bichromate of potash
Sulphuric acid
White barytes
Terra alba .



Cwt.



Qr.



Lb
24








24








5








12


1


1





1


1


14





3


Q





2


4


2


2





1


2






PURE DEEP BRUNSWICK GREEN.

Prussiate of potash
Sulphate of iron .
Bichromate of potash
Sulphuric acid
Nitrate of lead
Carbonate of lead
Bichromate of potash
Sulphuric acid

In working- all these Brunswick Green formulae add the
barytes and terra alba to the bottom vat, then run in the lead,
bichromate and sulphuric acid in turn to form the j^ellow, and
finally the iron, prussiate, bichromate and acid to form the
blue part of the green, when all are added allow to settle, wash
and finish in the usual way.





Cwt.



Qr.

2


Lb








2


4










3










14




1


1







1


1










3










2


4



PALE BRUNSWICK GREEN.

1 cwt. of barytes, li lb. of Prussian blue, and 35 lb. of
chrome yellow ; grind all together.



I'H.MI-.NIS. 31

MIDDLE BRUNSWICK GREEN.

I cwt. (»1 biu-\l»'s, -2}. lit. ol' rnissiaii lilur, aii'l :!.'; Il». nf
clironie yellow ; ;friii<l all titLr«'tln'r.

DEEP BRUNSWICK GREEN.

1 cwt. ol" l»ai"ytt's, ."> 11>. of rrussiaii Min', aixl 'A'l Ih. of
chroiiK' y»'llow ; ;,Tiinl all toj^ft'tlni-.

EXTRA DEEP BRUNSWICK GREEN.
1 cwt. of liarytrs, s II). of Prussian Iduf, aii'i .'>.") Il». (»f
chroiut' yt/Uow ; ^tIu"! all together.

PALE BRUNSWICK GREEN.
1 cwt. of haiytfs, l.S lit. of acetate of lia<l, 1 11). of co]i-
peras, 1 li». tjf Vfllow pnissiatc (jf potash, aii<l 4 11). of hichro-
inate of potash.

MIDDLE BRUNSWICK GREEN.
1 cwt. of baiyt.'s. i:i.^ 11). of acetate of lea. I. N, Ih. of
copperas, \\ lit. of yellow jtni.ssiate of jKjtash, an<l -l-j 11). of
bicliroiJiate of jHttash.

DEEP BRUNSWICK GREEN.

1 cwt. (tf Itarytes. 14 lb. of acetate of lea<l, 2 lit. of copperas,
2 lit. of yellow pnissiate of pcttash. ami 41 lit. of Itiehroinate of
potash.

EXTRA DEEP BRUNSWICK GREEN.

1 cwt. of Itarytes, 1(1 Hi. of aeeiale of lea<l. 4 II). of coppei'a.s,
4 lb. of yellow prus.siate of potanh, and .5 lb, of bichromate of
potash.

PREPARATION OF SCHEELE'S GREEN.

1 part of powdered white ai"senic (ai*Henious oxide), and 2
parts of pfttash (carbctnate of potassium), are dissolveil by



32 PIGMENTS.

boiling- in 35 parts of water ; the solution is filtered and then
poured into a solution of 2 parts of copper sulphate as long as
a precipitate falls. The precipitate is collected on a filter,
washed with water, and dried at a gentle heat.

EMERALD GREEN.

100 lb. of copper sulphate are dissolved in water, and
sufficient sodium carbonate (28f lb. of soda crystals or 12.\ lb.
of crystal carbonate) is added to precipitate part of the copper
sulphate used in the form of copper carbonate, then acetic acid
is added in sufficient (quantity to dissolve this copper carbonate.
There is thus obtained a solution containing copper acetate
and copper sulphate. The copper sulphate has now to be
converted into copper arsenite, to do this 60 lb. of white arsenic
are dissolved by boiling in sodium carl^onate (38 lb. of crystal
carbonate, or 87i lb. of soda crystals), the two solutions are
heated to the boil and then the arsenic solution is run into the
copper solution, the green is formed immediately, and only
requires filtering, washing and drying for use as a pig-
ment. When carefully carried out this process gives excellent
results.

EMERALD GREEN.

Cwt.
Arsenious acid ...... 3

Soda crystals ...... 4

Sulphate of copper ...... i

Acetic acid (25 per cent, strength) . . 60 gallons.

Dissolve the soda crystals in 50 gallons of water con-
tained in a steam jacketed copper pan, add the arsenious acid
and })oil until it is dissolved and keep at the boil.

Dissolve the sulphate of copper in 00 gallons of boiling
water in another copper. Mix the two Vxjiling solutions by



im(;mknts. :{â– ;

niiiiiiii;^ thrill siiiiultiiiii'oiisly into a \at. ('ool tu alMiut I so
v., a<lil tlif acftic aci<l, liiit <lii imt stir, ami tin- iiiuiiitMit
tilt' first sin^ii (if a l)luisli-«;i-ct'n crystal appears, on ilrawiii;,'
up the woodi'ii pnj.' u.s«!i| as a stirrer, •Ichi^^c tin- hatch with
an fiiual hulk of coj.! watt-r, and h-t staml tor thifc ilay-
without touciiiii;^ Wash well, iMii oH" the "lirty ;;n'cn
li<|U()r troni the real pi;;inent. thnjw on a filter, drain, and
dry in the stove room: sift in the lee of a <lran;;ht. and i>ack
into casks for sale or fdi' rfjiaekiii;^' into pound or iialf-pound
packets.

EMERALD GREEN.

Copper sulphate ....
Caustic s(xla ....

While arsenic ....
Acetate of soda ....
Barytes .....

DissoKe coppei' sulphate in the t<jp vat with lOO ;.;allons
of water ; in the hottoni vat put caustic soda and dis.solve in
water ; in the centre \at put arseiiie anil l»oil for t went y minuter
Tiien run in the caustic soda, lM)ilin;j up for fifteen minutes to
dissolve the arsenic : then add acetate of so<la, hoil up a;^ain
for ten minutes, an<l run in copper solution as .soon as po.ssible.
Then cover up ti;;ht until next 'lay. Th.- harytes is put in
alony- with th<' arsenic.

FINE EMERALD GREEN.



White arsenic
Copper sulphate .
Carbonate of soda
Acetic acid .



Cwt.

2


(.Jr.

1





(1


1





1


3


14





â– )





(1


1


U



Cwt.




•2


Lb.
10


4








4











3


20



34



PIGMENTS.



Dissolve arsenic and soda together in bottom vat, then boil
up well for fifteen minutes. Have copper sulphate dissolved
in top vat, then run it into bottom vat, stir gently and add
the acetic acid gradually ; hll up vat with cold water after
standing one hour, then allow to stand until the colour forms
properly.

EMERALD GREEN PURE.



Sulphate of copper
Caustic soda
White arsenic
Acetate of s )da

For process, see aljove.



Cwt.

1


Qr.

2


Lb.






1


7


1


3


14


1


2


8



SUPER EMERALD GREEN.



8u]pliate of coppei'
Caustic soda
Acetate of soda
White arsenic
Produce

For ])r()ce.ss, see al)0\"(



Cwt.
1


Qr.
2


Lb







1





1





7


1


1





1


2






MINERAL GREEN.



Sulphate of copper
Caustic soda
White arsenic
Tartaric acid



Cwt.
1


Qr.

1


Lb






1


7








7








6



Process. — Same as for Emeiald, add taitaric acid when
Emerald arcen is cold.





MOMENTS.










ROYAL GREEN.








Prussiate of potasli . . . .


(â– \M.







1,1..

24


Sulphate of iron .








(1





24


Bichro'.iiate of potash .














C.


Sulphuric acid











(J


12


Nitric acid .














4


Nitrate of lead








1


1


11


Carhonate of lead








(1


I


14


Bichromate of potash








(I


1


12


Sulphuric acid











1


14



8.5



DEEP ROYAL GREEN.



Prussiate of potash
Sulphate of iron .
Chlorate of potash
Sulphuric acid
Nitrate of lead
Carbonate of lead
Bichromate of potash
Sulphuric acid



Cwl.




3


Ll..






3











7^j




1




10
14















12







14



ENGINE GREEN,



Prussiate of potash
Sulphate of iron .
Bichromate of potash
Sulphuric acid
Nitrate of lead
Carbonate of lead
Bichromate of potash
Sulphuric acid






3


Ll






3











12








21


1


1





1











2


20





2


4.



36



PIGMENTS.



PALE ROYAL GREEN PURE.



Prussiate of potash
Sulphate of iron .
Bichromate of potash
Sulphuric acid
Nitric acid .
Nitrate of lead
Carbonate of lead
Bichromate of potash
Sulphuric acid



ROYAL GREEN.

Prussiate of potash
Sulphate of iron .
Bichromate of potash
Sulphuric acid
Nitric acid .
Nitrate of lead
Carbonate of lead
Bichromate of potash
Sulphuric acid
White barytes
Terra alba .

Process of making these Royal Greens same as for Bruns-
wick Greens given above.



Cwt.



Qr.




Lb.
18








18








4








9








4


1


1








2








1


18





1


20


Cwt.



Qr.



Lb.
18








18








4








4








2i


1


1








2








1


18





1


20


2








2









LIME GREEN.










Cwt.

2


Qr.



Lb



. .





1













12



Sulphate of copper
Caustic soda
White arsenic

Dissolve copper salt in top vat ; in the bottom vat dissolve
the arsenic. Then run into copper solution, boil up for twenty

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