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Show Led. VIL Led. VI. EXPERIMENTS IN C:@ NS G hoe UL OWy Tee Solution of Salts IN 4. §. Salts in Water, Fourthly, What quantity of the feveral kinds of Salt, may be diffolved feverally, in the fame quantity of Water > 5. §. Fifibly, Whether by diffolving a sa/t in Water, there be any Space gained, or not ? That is, whether the Bulk of the Water be greater, before the Salt lying in it be fully diffolved, than it is after- wards? Or if aCubick Inch of Salt be diflolved in nine Cubich Inches of Water ; Whether the Water will then filla Veffel of ten Cubick Inches content 2 6. §. Sixthly, Whether the Space be equally gaincd, by an equal encreafe of the fame Salt 2 7. §. seventhly, Whether upon the Solution of feveral kinds of Salts, be gained fo many feveral quantities of Space? Thatis, if the Solution of common Salt gains, fuppofe, an Izch, whether the Solution of Salt Armoniack gains as much, or more, orlefs ? and fo for other Salts. 8. §, Eighthly, What that juft {pace may be, which anySa/¢ gaineth withrefpect to its own Bulk, or that of the Water 2 WATER g. §. And firft, for the superimpregvation of Water; 1 put intd a bottle 3ij of fair Water; adding thereto, ‘firft halfan Ounce of Nitres and afterwards more, asthé Water would diffolve it 5 and (that Readbefore the Royal Society, Fanuary, 18. 167%. wholly and eafily diffolved in the faid’ Solution’, though it would not I might be fure the I-pregnation was fall) fome portion above what the Water would bear. Then having feparated this remaining portion5 I put to this Solmtion of Nitre, two Drachms of sal Armoniac ;- which bear a grain more of Nitre. I thén'added a third Drachm of sal Armoniac, after thata fourth, and fifth; all which, within the {pace of half an hour, were perfectlydiffolved in the faid solution, without any precipitation’of the Nytre. CEMAME i: In which is fhewed, the Compleat or Utmoft Impregnation of WATER with feveral kinds of Salt, both together, and apart. lity ofthe Salts. 11. ¢, Having made the Experiment upon two Salts,] proceeded to repeat it upon three. And firft I diffolved as much common Sv/¢ in 3ij of Water, as that quantity would bear. Then having feparated the fubfiding portion 3 I put to the Solution, no lefs than five Drachms of Nitre, which by acontinued Agitation, was whollydiflolved there- => thing aflerted by fome Phylofophers, That Water = having beenfully impregnated with one kind of Then adding a Scruple more, it would notdiffolve, but fubfided: This SD Salt, {o as to bear no more of that kind; it would <y yet bear, ordiffolve fome portion of anothers and impregnation, near 3) Of Sal Armoniac, which was alfo diflolved as the fo ofathird. And it was referred to Me by this Honourable Chair,to examine and produce the Experiment. The doing whereof brought into my mind divers other Experiments hereunto relating. 2. g. Asnext, With what difference of quantity this superim- pragnation would be made, upon the Solution of different Salts ? Thirdly, Whether the Solution of a {maller quantity of feve- ral Salts, doth confift with the on-increafe of the bulk of the Water? Becaufe this alfo is affirmed byfome. Ae THA bh by the help of Fire, but only by a ftrong and continued Agitation: And that this was done upon a warm day: which I mention, becaufe that even the changes of the weather will fomewhatalter the Sol:bi- ifcourfe upon a Ledfure formerly read, concerning the Lixivial Salts of Plants ; It wasmentioned, asa gS 3. §. 1c. §. In the making of this Experiment, two things, to render it infallacious, areto be noted. That the faid Salts were not diflolved in, neither the Nitre nor the commonSalt being in'the leaft precipitated. fecondfufiding portion, Lagain feparated 5 and then put to this Superformer. And ifas many moreSalts had beenadded, tis probable that the fame Water would have born fome quantity ofthem al. 12. ¢. From this Experiment, it is a Conclufion demonftrated, That not only the vifible Cryffals, but the very Atcmes of every Salt, at leaft tho Particles which are ultimately diffolved in Water, have a different Figure one from another. Becaufe that if they wereall of one Figwre; there would be no Superimpregnation, but the Pores of the fame Water, would imbibe as muchof one Salt, as anfwers to the total of two more Salts imbibed: that is to fay, it would as well imbibe two Ounces of commonSwit, as oneOunce of commonSa/t and Xx anothet 297 |