FLAME SPECTRA AT HIGH TEMPERATURES. 
203 
Nickel. 
The metal and oxide were both examined, and the lines photographed were 
compared with thosembtained by Corxu in the arc, and by Liveixg and Dewar in 
the arc, the spark, in explosions of oxygen and hydrogen within tubes containing 
nickel, and also in the flame of nickel tetra'Carbony]. 
CoRXU “Spectre Normal du Soleil.” ‘ Aunales de I’ficoie Normale,’2 ser.,vol. 9. 1880. 
Liveing and Dewar, ‘Phil. Trans.,’ vol. 179, pp. 231-256, and ‘Roy. Soc. Proc.,’ 
vol. 52, p. 117. 
The lines were measured by the ivory scale and were all identified with the 
excejition of two, about which there is a slight doubt, namely 3574 and 3496. 
The metal used was rolled nickel, which owes its malleability to a little manganese. 
The indications of the presence of this element were very evident from the bands 
between 5700 and 5300, and the double line 4031‘8 and 4029'9. 
The metal was exposed for half-an-hour, and the oxide, which yielded the better 
spectrum, one hour. 
Liveixg and 
Deivae’s 
Ivory scale 
1 
measurements. 
Remarks. 
numbers. 
\ 
HOT 
25900 
3859 
3857-8 
Common to Ri(CO).j, arc and spark 
spectra. Hot seen in explosions. 
114-2 
26255 
3809 
3806-6 
Unless exceptions are stated, all lines 
116-2 
26426 
3784 
3783-0 
are common to tbe five difl^erent 
116-9 
26485 
3776 
.3775-0 
spectra (arc, spark, nickel carbonyl 
131-0 
27628 
3619 
3618-8 
flame, and oxv-bydrogen explosions) 
131-85 
27695 
3611 
3609-8 
or 3612-1 
as observed by Liveixg and Dewar. 
133-0 
27785 
3599 
3597-0 
Hot in Hi(CO)j flame. 
135-5 
27980 
3574 
3572-9, CoRXU. 
136-0 
28020 
3569 
3571-2 
3570-8, CoRxn. 
140-25 
28347 
3527 
3527-1 
Hot in explosions. 
141-25 
28425 
3518 
.3519-1 
141-8 
28467 
.3513 
3514-4 
142-8 
28547 
3503 
3.501-8 
Hot in Hi(CO) 1 nor explosions. 
143-6 
28607 
3496 
.3492-3 
144-5 
28675 
3487 
3485-2 
145-8 
28777 
.3475 
.3470-8 
147-0 
28878 
3462 
3461-1 
147-25 
28900 
3460 
.3457-9 
3457-8 in Hi(CO)^. Hot in explosions. 
148-0 
28962 
3453 
3452-9 
Hot in Hi(CO )4 spectrum. A line at 
3452-3 occurs in Hi(CO)^ spectrum. 
148-75 
29025 
3445 
3445-7 
arc, and spark, but not in explosion 
149-75 
29105 
3436 
3436-7 
1 
spectrum. 
150-1 
29131 
3433 
34.33-0 
151-2 
29213 
3423 
.3423-1 
I 
152-2 
29284 
3415 
3413-8 
^Hot in explosions. 
154-8 
29477 
3392 
3392-4 
155-0 
29492 
3391 
3390-4 
156-1 
29573 
3.381 
.3380-0 
157-4 
29673 
3370 
3371-3 
3368-9 
3367-2 
■ 
3371-3 in Hi(CO)^. Hot in explosions. 
^ 3370 is probably tbe line 3368-9 
163-9 
30157 
3316 
3233 
3315-1 
i 
. Hot in explosions. 
174-5 
30934 
.3232'6 
2 D 2 
