OCR Text |
Show PRICKLY SALTWORT. PRICKLY SALTWORT, egg, when the workmade no stronger thanto float a now-laid the water of potash may gradually drop through the rag into the lower vessel. As soon as it ceases to drop, pour into the funnel tis then kept boiling with a stronger ley the matter. The water of potash will again begin to drop, and the affusion of water is to be repeated in the same manner "until three pounds have dropped, which will happen in the sain of two or three days ; then mix the superior and inferior parts of . ae together by agitation, and keep it in a well-stopt phial. Warer or Pure Karr. (Aqua Kali Puri. L.) Take of prepared kali, four pounds ; lime, six pounds ; distilled water, four gallons: Put four pints of water to the lime, andlet them stand together 256 ‘The oil, or tallow, is first men begin to form the mixture. formed into asapoboiled with a weak ley until the whole is naceous com} sound. stence, and seems to beseuntil it acquires a considerable consi ation is a very maparating from the fluid below. ‘This separ completely a quanit terial part of the operation; and to effect continually boiled are ials tity of commonsalt is added, the mater withdrawn. The is fire he thent for three or four hours, and liquor, or what the of top the at d soap will nowbe found unite and is theres use, er furth no of is which is called the waste ley, time with last the for d melte now is soap fore drawn off. The a short for to cool a ley, or even with water ; it is then allowed g meltin last The time, and afterwards cast into wooden frames. apct compa a soap is of considerable importance, as it gives the pearance. if 13 cwt. yield The tallow for making soapis reckoned good a ton of white soap. as the last; the Mottled soap is made in a similar manner the operation of of end the ds towar mottled appearanceis given or by adding to soap, the gh throu ley boiling by dispersing the by its dewhich iron, of ate sulph of ion solut jt a quantity of a soap, andgives it au composition deposits its oxide through the actures the black appearance of blue marbie. In some manuf purpose. oxide of manganese is madeuse of for the same ; and these are resin and Yellow soap is made with tallow of resin, with cwt. 33 and reckoned good, if 10 cwt. of tallow soap. of ton a d the proper quantity of soda, affor some ounces of water; but cautiously, so that it may sveiin above for an hour; after which add the kali andthe rest of the water: then hoil for a quarter of an hour; suffer the liquor to cool stk strain it. A pint of this liquor ought to weigh sixteen rian If the liquor effervesce with any acid, add more lime, and boil the liquor and lime in a covered vesselforfive ‘niatel Lastly let it cool again, andstrain it. i These processes do not differ materially. They are founded won the aflinity of lime being stronger than that of potash for el io course, when lime comes in contact with car. . - e , the carbonic acid quits the potash to unite with ime, and the results of the mixture are potash and carbonate of fee Now, as the carbonate of lime is insoluble in water, ee is very soluble, they may be separated by filtraoo a Rawever, we must take care to employ . oe es the solution of potash does not act, and PREPARATIONS. c Ley. Water oF PoTAsH, ’ COMMONLY CALLED Causti 957 (Aqua Potasse, vulgo Lixivium Causticum. E.) Take of newly preparedlime, eight ounces; carbonate of potash, six ounces: twenty-eight Put the lime into an iron or earthen vessel, with on is finished, instantly ebulliti the After water. warm of ounces mixed them, cover the add the salt; and, having thoroughly agitate it vessel till they cool. When the mixture has cooled, be obmust throat whose funnel, glass well, and pour it into a of structed with a piece of clean linen. Cover the upper orifice that 80 vessel, glass another into tube its the funnel, andinsert gh _ ree ore of air, from which it would attract aa 0 an thus frustrate the whole operation. The a fi areae by covering the upper .or broad end of tba i : ee of glass, and inserting the lower endinto aa fae : uial, which it fits pretty closely. The former wks es ue with greater difficulties, and indeed scarcely a. 2 powerful and general is the agency of potash. eu. ae ances are immediately attacked and destroyed cannot be made of silk, woollen, our filters ee paperi. ™mates se gine ; and although neither vegetable an. a oe entieey pscape its action, linen and sand are, le, the least objectionable. 8 A filter of sand was used |