1000000030

"hich they

~ct

rid of bY'

ro~ning

it. After this thcy

fl crp the

c.lcin~d

none in

w~tcr,

wl ich dilrol,es the aJum

it cont.ios, aod to this folulioo they add a certaio

qOln·

tit)'

I)'e 1Il00de

thc .fhcs of fea·weeds.

r . a Iran Ih, Vil

ri.li

, AcMIr.mCrun Vilri.l.

T AKE any quanti ty uf greco vitriol : put it iD ao

\lo~lnlo

earlheo vefl'e1, and beat it gradu.lly.

V~pou"

will fooo begio tO rife. lom afc the lire

liule, aou it

" ill liquify by

m~aos

of thc wml cootained in it, and

acquirc ",hat we calltd ao

a9u~,u,

I".r.

Cootio"e Ihe

~~lcinatioo,

aod it lVill becllme lefs . od lefs fluid, gro

thiek, aod turo of a greyilh eol"ur. Now r.ife your 6re,

. od keep it uptill the f. /t recover its folidity, aequire

or.oge eolour, aod be::io to grow

re~

whae it i,"me–

dimly touehes the Gdcs uf the ve(fd. Theo take it out

.nd reduce it tO powder.

PUt Ihe "itriol 1hus ealeined and pulverired iOlo

good eanhen T<lort, of whicli one h. Jf al leaHmull re·

main empty.

S~I

the mort in a re,'erberatory (urnaee:

}'it therelo a

I~rge

gla(s reeri"er, and, having luttd the

joint \l/tiI, give [¡re by dctrees

You will (oon fce

white clouos rife ioto the reeeiver, which will render il

opaque alld heal il. Continue the fame d<gree o( fite

lill lhefe clouds d.f' rpear:

T~ey

\ViII be fucctcd:d by a

liquor IVhich wiJl tri.:kle down lhe Gdes of lhe rceeiver

veins. $Iill keep up thc lire

l~e

fa me degrce as

JJn~

as thefe

"dos

app~ar.

When lhey begin to abale,

enereafe the lire, and rufh il tOthe ulOlofl eXtremilY :

Uponlhis thcre \I'ill come over a black, thiek liquor : It

\ViII even be found conge.led , and preve the iey oil of

vilriol, if eare halh been l. ken

change lhe receiver,

keep the ' efl'els perfeél!y c1ofe, anu give a fufficieol de·

!\ree o( heo!. Proeced lhus tiJl nOlhing more comes o–

ver, or at leafl . ery hule. Let the ye(fels eool, unlute

lhem, pour the

C"Ot~OIS

of the recei' crinlo abotde, and

feal il hcrmelicaJly.

r . tluo/llP1' Sulphur, ami ,x/r.n ill AcM,

hurn–

ing 'l.

TAK

anyq'Jantity of lhe pu refl fulphur;

611

thmwith

acruc.ble or other eJrthendiOt ; hm it liJl it mdts ; lhco

fL!

on fire, and when

liS

wholefurface is lighted, place

it un,ler

large glars head, fo lhat the Rame of the (ul–

phur do not louch cilher its fijes or bouom; lhal lhe

alr hJve fICe accefs, in arder to

m.ke

lhe fulphur burn

de.,: lhol: lhe head incline a liule loward Ihe fide on

\l/hich itl beak is,

11m

as thc vapoulS eondenfe ,herein

tite

h~"nr

mJy run off with eafe. To lhc uc,tI¡

thi,

vefi.1 fil a receiver : The fu mes of the lighled fuJphu r

lIIill be eooden(Ld, and gatlter ioto drops in lhe head,

out of hich lhey \l/iJl run iOlO Ihc " ceiver. Th<re,

hen the fulphur has done burninn, you \l/IJl 60d ao acid.

liquor, which is lhe fpiril

fulphur.

r . "r.unlra/( Ih, Vilri.lic ,Ieitl.

T A

the "ilriolic

¡cid

you inlend to concenlr:tle,

lh" is, to dephlegmale and make flrunger: Pour it inlo

g"od Rlafs

retOr! 01

fuch a fize lhal your quanlity of·

¡cid

ItMy

bUI hJlf

6J1

il : Set lhis reton in lhe faod–

bnh of a rcvcrbmllog furnace ¡. 61 it

a receim ;

J"le it on, and give a gradual fire. Tliere will come

o"er into the receiver a clear liquor, the {¡rn drops oE

which ",iJl be bUl faiolly acid : This is lhe mofl aqueou,

pan.

Wlten lhc drops begin to follow one aoolher mueh

morc Oowly, raife your fi re, tilllhe liquor bCfintobub–

blc a I:ttlc in the middle. Keep il thus gently.boiling•.

liJl olte halr or tlVO lhirus ¡hereof be come over inlo lhe

recei"er. T hen lel your ,'cfl'ds cool ; unlute them'

Wh. l rem,ins in the rClon pour inlo acryfial bOlde, aod

flop il exaélly

w~th

a glafs fiopple rubbed. with emery,

r. tltcDmpafe vllr¡"fa/er! r arlar

m,anl

Ih, PhI.-

giJ/on; or

w npofe SI/Iphur

c01l/bining Ih, Vi–

/ri.lic Aeitl wi/h Ih, Phlogif/on.

TA ~

equaJ pans of vitriolaled tartar, and

,rry

dry

falt of lartar, (eparately reduced to powder; add an

eighlh part of thcir wcighl of charcoal dufl; and mil!"

lhe whole together very accurmly, ThrolV this mix.

lure into a red·hot cruciule, placed io

furnace fillee!.

Wilh burning eoals. Cover it , ery dofe, and keep ir

very hOl, lill the mixlure mcll, \l/hich may be knowQ

b), uncoveriog lhe crucible from lime to lime. There

will thenappear a bluifh flame, accompanied with a PUli–

gcnl rmell of fulphur.

T.ke

the crucible out of the fire; di(fol.e its can"

lenlS in hOl waler; fiher the (olulioo tb'rough brown

paper fupported by a glafs fun nel ; drop ioto the fi her–

ed liquor by little and lillle any acid whatever. As you

add lhe acid, lhe liquor will grow more and more tur.

~id.

and

I~t

fa!1a grey.

precipi~m..

Conlinue droppiog

more aCld

1111

Ihe liquor wdl y,eld no more pr<cipi–

tate. Filler il a fecond time

(eparate it from the pre–

cipilarc : What remain! on the lilter is

true infia.m–

l}l.ble fulphur, wbich you may ejlher mell or fu b–

lilOe into fiowers.

tbe

ITROU S ACID .

r o rxlran ni/re Oul

ni,,.., ,arlhJ gntl fionu.

'{h,

purifwion

1.1t

p,I". MOI6"

nil" , Mag–

ntjia.

TAKE any quantity o( nitroul eanhs or fioDes; re–

duce lhem

powder; and lherewilh miK a lhird pare

of the afh es of grten wooo and quiek.linte. PUl lhis

mixture iOlo a barrel oro

" 1,

and pour on it hot waler

abOUl lwice lhe ..eighl of lhe whole mafs. Let il fiand

thus for tWeOly four houlS, fli rriog it frolTl" time to lime

Wilh a lIick. Then fi/ter lhe liquor lhrough brown pa.

per, or pafs it th rough a ft.r-nd bag, till il come cica"

it will then

ha~e

a yellowifh eolour. Boil Ihis liquor,

and e.aporate

1111

yO\)

perce.ve

11m

a drop of it lel (all

onanyeold bodyeoagulates. T hen fiopthe <faporalion

and let your liquor in a eool place• .Inlhe fpace of fou;

and lwenly hou" cryltals will be forroed in il, lhe 6gure

of whlch is that o( an hexagooal prifm, having its oppo–

fi te planes generally equa!, and lerminaled

eaeh ex–

lremity by a pyramid of lhc faroe oumber of fides. Thefe

eryll.Js

wIII be o( a browoifh colour, and deBagrate on a

Ji"e coJo

Oleanl lhe liquor [rom tbcJi cryfials

mjx jI with

twitC