57 



At Methoden giver indbyrdes vel overensstemmende 

 Resultater, viser de talrige Saltbestemmelsér,, som udførtes 

 med samme Vandprøver, Saaledes fandtes yed ueden- 

 staaende Forsøa 



Proc. Salt ! Proc. Salt 



3.517 



i VII J 



f) 14 

 516 

 515 



- III 



|2.303 

 12.299 



jy |3.386 

 13.385 



3.530 

 3.533 



- vni 



— - vi 



3.276 

 3.279 



,51 1 1 

 .507 

 ,5i 18 

 ,5< « i 

 .502 

 .506 

 ,500 

 501 



Resultaterne ere. som man ser. allerede lier temmelig 

 rei overensstemmende, men kunde visselig gives en eudnu 

 større Nøiagtighed, om man vilde arbeide med noget større 

 Quantiteter Søvand. 



For Vandprøverne III og VII er Egenvægten ved 



I 7 ."i 



yf-~- allerede tidligere ved Hjælp af Pyknometer bestemt 



til respéctive 1.01739 og 1.02669. for Vandprøverne IV. 

 V, VI og VIII er den randen ved gjentagne Aflæsninger 

 paa et af de corrigerede Aræométre, medens den for Prøven 



II kun blev bestemt ved en enkelt Aflæsning. Ligeledes 

 bestemtes meget omhyggeligt samtlige Vandprøvers Ohlor- 

 mængder. Heraf kan 



Saltmængden 



og 



Chlorcoefficienten = 



Egenvægtscoefficienten 



Chlormængden 



Saltmængden 



Egenvægten — 1 

 beregnes, saaledes som det er giort i nedenstaaende Tabel. 



That the results obtained by this metbod must be 

 regarded as agreeing very closely inter se, is sbown by the 

 numerous salt-determinations performed with the same 

 samples of water. 



Per cent. of Salt in 11 



— - III 



IV 



V 



[3.525 



3.517 



2.303 



2.299 



3.386 

 3.385 



8.530 

 3.533 



Per cent. of Salt in VII 



VIII 



3.276 

 VI ' 



13.279 



3.514 

 3.516 

 3.515 



3.501 

 3.507 

 3.508 



■ !.."»< 11 1 



3.502 

 3.506 

 3.500 



8.511I 



Tliese figures, it will be seen. differ but little inter 

 se, and by increasing the quautity of water greater accuracy 

 could no doubt be attained. 



For samples III and VII. the specific gravity at 



17 "5 



y^V- re.spectively 1.01739 and 1.02669, bad been pre- 



viously determined by means of the pyenometer; for samples 

 IV. V. VI. and VIII. it was found by repeated readings 

 of one of tite corrected areometers, whereas for sample 

 II it was determined by one reading only. The amount 

 of chlorine. too. in each sample was carefully determined. 

 Fri nu these data may be computed the 



Amount of Salt 



( 'oefticient of Chlorine = 



Amount of Chlorine 



and the 



Coefticient of Specific" Gravity = 

 as set forth in the following Table. 



Amount of Salt 

 Specific Gravity — 1 



Nu. 



II 



III 



IV 



VI 



VII 



VIII 



Egenvægt 



it.":. 



ved 



17. Ti 



I.02670 



I-OI739 



1-02573 



I.02676 



1.02488 



1.02669 

 1.02655 



Chlbr- 



1 1 : 1 ■ ] , a ' 1 1 ' 



1,947 



1.27 1 



1.868 



1.956 



1.809 



1-947 



Salt- 

 111:1 agde 



\ ægts- 

 coefficient. 



Chlor- 

 coefficii ut. 



3-521 



I3I-9 



1. Sot 



2.301 



132.3 



3.386 131. 6 



3-532 



132.0 



3.278 131.8 



3-515 i3i-7 



1.938 



1. 810 



1.B13 



1.806 



1. 812 



I.805 



3-503 



I3I.9 



I.808 



Som det heraf fremgaar, er baade Chlor- og Egen- 

 vægtscoefficienterne tiltrods for Saltgehalternes Forskjellig- 

 hed overalt meget nær constaute. saa at Variationerne 



Den norske Nqrdhavsexpedition. Tornøe: Chemi. 



It tims appears, that the coefficients both of chlo- 

 rine and specific gravity, notwithstanding the difference in 

 the pereentage of salt, are always very nearly constant; 



