tablas metalurgicas
TRANSCRIPT
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386
M E T L L U R G I C L
P R O B L E M S
T A B L E X I S P E C I F I C G R A V I T Y O F M E T A L S A N D O T H R M A T E R I A L S 1
M e t a l s
S o l i d
L i q u i d , n e a r
M e t a l
S y m b o l
f r e e z i n g
V a l e s f o r n o n - L o w e r v a l u ,
e g
p o i n t
p o r o u s m e t a l 2
c a s t m e t a l
A l
2 7 0
2 6 8
2 3 8
S b
6 71
6 62
6 41
A s
5
7 3
5
7 1
5
7 1
B a
3 7
3 6
B e
1 93
1 84
i 9
9 2 9 7 4
1 0 0 4
C d 8 7 0 8
6 0
7 99
C a
1
5 5
C e
6 8
C h r o m i u m
C r
7 1 7 0
C o b a l t
C o
8
9 2 8 5 0
8
7 2
C u 8
94 8 7
8
2 2
G o l d
A u
1 9 3 7
1 9 2 5
1 9 2 0
I r
2 2 4 2
F e
7 88 7
3
7 13
L e a d
P b
11
3 5
1 0 8 8
L i
0 5 9 0 . 5 3
M
a g n e s i u
m
M g
1
7 4
1 5 7
M n
7 39
M e r c u r y
H g
1 5 6 3
1 3 5 9
M o 10
2
N i
8 91
8 8 5
8 79
O s
2 2 4 8
P d
1 2
16
P t
2 1 7
2 1 1
2 1
3
K
0 8 7 5
0 8 3
R h
1 2 5 0
1 2 4 0
S e
4 8 m e t a l l i c )
4 . 4 7 r e d ) 3 9 8
S i
2 34 2 19
S i l v e r A g
1 0 7 5 10 5 0 9 2 7
N a
0
9 7 2
0 9 3
S r
2 5 4
T a
16 6
T e
6 2 5
T i n
S n
7 3 0 7
2 8
6 98
T i
4
5
W
2 0 2 1 9
1
U
1 8
6 9
V
5 7
5
5 0
Z n
7 13 7
0
6
9 2
1
T h e s e
v a l e s
g i v e a l s o
t h e
d e n s i t y
i n
g r a m a
p e r
c u b i e c e n t i m e t e r ;
f o r t h e
d i s t i n c t i o n b e t w e e n s p e c i f i c
g r a v t y a n d d e n s i t y , s e e p . 3 .
U s e
t h e s e
v a l e s f o r
r o l l e d m e t a l
a n d f o r
c o m m e r c i a l d e p o s i t s
o f
e l e c t r o p l a t e d
o r
e l e c t r o l y t i c a l l y
r e f i n e d m e t a l .
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TABLES
387
T A B L E X I . S P E C I F I C G R A V I T Y O F M E T A L S A N D
O T H E R
M A T E R I A L S .
C o n c l u d e d )
B . O t h e r E l em e n t s A l l o y s C o m p o u n d s E t c .
3
M e t a l
A l u m i n a
B o r o n
B r a s s
( 7 0 - 3 0 )
B r o n z e
C a s t i r o n
C e m e n t ,
s e t . . . . . .
C e r n e n
t i t e
C h a r c o a l
C l a y
C o a l , a n t h r a c i t e . . .
C o a l , b i t u m i n o u s . .
C o n c r e t e
C o p p e r a l u m i n i d e .
C o r k
G a s o l i n e
G l a s s
G o l d , c o i n
G r a p h i t e
I r o n o x i d e
L i m e
L i m e s t o n e
M a n g a n i n
M i c a
M o n e l m e t a l
N i c k e l
s i l v e r
P e a r l i t e
P e t r o l e u m
P h o s p h o r u s
R u b b e r
S i l i c a , f u s e d
S i l i c a , s a n d s t o n e . .
S i l i c o n c a r b i d e . . . .
l a t e
o d a a s h
S t e e l ,
h i g h s p e e d . .
S t e e l ,
m i l d
S t e l l i t e
u l p h u r
T a r
T u n g s t e n c a r b i d e . .
W a t e r
W r o u g h t
i r o n
S y m b o l
A I O 3
B
F e i C
C u A l i
F e a O a
C a O
F e - F e * C
P
S i 0 2
S i 0 2
S i C
N a C O
W C
H 0
S o l i d
N o n p o r o u s
4
0 0
2
45
8 4
8 9
7 6
( w h i t e )
3 0
7 6 6
0 2 1
2
6
1
7
1
5
2
3
4 2
0
2 4
2 5 2
1 0
9 5
2
2 5
5
3
3
3
2
7
8
4 2
2
8
8
8 0
8 4 5
7 8 3
2 3 4 ( r e d )
1
4 0
2 2 1
2 7 0
3 1 2
2
9
1 2
8
6 4
7 9 3
8 5 4
2
0 7
1 0
14
5
0
9 2
7 9
L o w e r v a l u
3 . 7 5
7 . 8
8 . 7
7 . 0 8
( g r a y )
2 . 7
1 . 8
1 . 3
1 . 2
5 . 2
1 8 4
( w h i t e )
1
1 2
2
1 0
2
1 0
2 7
8
3 2
7 6 9
1
9 6
L i q u i d , n e a i
f r e e z i n g
p o i n t
6 . 8 8
0 . 7 0
0 . 7 7 - 1 . 0 6
1 . 7 5
1 . 8 1
1 . 0 0
3
L a r g e l y f r o m L I D D E L L D O H L D M . , T h e M e t a l l u r g i s t s ' a n d C h e m i s t s ' H a n d b o o k , 3 d e d .
M c G r a w - H i l l B o o k C o m p a n y , I n c . , N e w Y o r k , 1 9 3 0 .
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3 9 0
M E T A L L U R G I C A L P R O B L E M S
T A B L E
X I I I . L A T E N T
H E A T S
O F
T R A N S F O R M A T I O N 1
empea t u r e s
i n degrees c e n t i g r a d e , h e a t s i n
g r a m - c a l o r i e s
p e r g r a m ,
k i l o g r a m -
c a l o r i e s p e r
k i l o g r a m ,
o r p o u n d - c a l o r i e s p e r p o u n d
E l e m e n t
S y m b o l
T r a n s f o r m a t i o n T e m p e r a t u r e L a t e n t
h e a t
I r o n
F e A
7 6 9
0 . 0
I r o n
F e
a
>
y A ) 9 1 0 3 . 8 6
I r o n
F e y -> S {Ai) 1 4 0 0 1 . 8 6
M a n g a n e s o
M n
a - > ( 3
1 0 7 0 1 1 3 0 2 4 . 1
N i c k e l X i
a
- > 0
3 5 2 1 . 3 3
T i n S n
W h i t e
>
g r a y
0 4 . 4 6
1
D a t a o n i r o n f r o m T h e M e t a l I r o n , b y H . E . C l e a v e s a n d J . G . T h o m p s o n , M c G r a w - H i l l
B o o k
C o m p a n y , I n c . , N e w Y o r k , 1 9 3 5 . O t h e r d a t a f r o m I n t e r n a t i o n a l
C r i t i c a l
T a b l e s , V o l . I I , 1 9 2 7 .
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3 9 0
M E T A L L U R G I C A L
P R O B L E M S
T A B L E X I I I . L A T E N T H E A T S
O F
T R A N S F O R M A T I O N 1
T e m p e r a t u r e s
i n
degrees c e n t i g r a d e ,
h e a t s
i n
g r a m - c a l o r i e s
p er
g r a m , k i l o g r a m -
c a l o r i e s
per
k i l o g r a m ,
or
p o u n d - c a l o r i e s
per
p o u n d )
E l e m e n t
S y m b o l
T r a n s f o r m a t i o n T e m p e r a t u r e
L a t e n t h e a t
I r o n
F e
A
7 6 9 0 . 0
I r o n
F e
a > y A 3 )
9 1 0
3 . 8 6
I r o n
F e
y-+5 A t)
1 4 0 0 1 . 8 6
M a n g a n e s e
M n
a - > 0 1 0 7 0 1 1 3 0
2 4 . 1
N i c k e l N i
a
- > / 3
3 5 2
1 . 3 3
T i n
Sn
W h i t e
g r a y
0 4 . 4 6
1 D a t a o n i r o n f r o m T h e M e t a l I r o n , b y H . E . C l e a v e s a n d J . G . T h o m p s o n , M c G r a w - H i l l
B o o k
C o m p a n y , I n c . , N e w Y o r k , 1 9 3 5 . O t h e r d a t a f r o m I n t e r n a t i o n a l C r i t i c a l T a b l e s , V o l . I I , 1 9 2 7 .
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T B L E S
393
T A B L E X V .
M E A N S P E C I F I C H E A T S O F G A S E S
B e t w e e n 0 a n d C . )
G a s
F o r m u l a
C m
b y
v o l u m e 1 - 3
( I n k i l o g r a m - c a l o r i e s
p e r
c u b i c m e t e r
o r
g r a m - c a l o r i e s
p e r l i t e r a t s t a n d a r d
c o n d i t i o n s )
c m , b y w e i g h t 2 - 3
( I n k i l o g r a m - c a l o r i e s
p e r k i l o g r a m , g r a m -
c a l o r i e s p e r g r a m , o r
p o u n d - c a l o r e s p e r
p o u n d )
A i r
0
: 0 2
4 .
0 . 0 0 0 , 0 2 2
0
2 3 4
4 -
0 . 0 0 0 , 0 1 7 , 3 *
A m m o n i a
N H i 0
3 7 6
+
0 .0 0 0 1 4 4
0
4 8 8
+
0 . 0 0 0 , 1 8
C a r b n d i o x i d e & C 0
2
0
4 0 6
+
0 . 0 0 0 , 0 9 0
0
2 0 5
+
0 . 0 0 0 . 0 4 6
C a r b n m o n o x i d e 4
C O
0
3 0 2
+
0 . 0 0 0 . 0 2 2 0 2 4 2
+
0 . 0 0 0 . 0 1 8
C h
0
3 8 7
+
0 . 0 0 0 , 0 0 7 *
0
1 2 2
+
. 0 0 0 0 0 2 2
C s H
4
0
4 6
+
0 . 0 0 0 . 3 0 3 7
+
0 . 0 0 0 , 2 4
F
0 3 0 2
+
0 . 0 0 0 . 0 2 2
0
1 7 8
+
0 . 0 0 0 . 0 1 3
C H
0
2 0
( *
4-
1 ) +
0 . 0 0 0 , 1 3 5
O r
4- 2 ) ,
w h e r e x =
n o . o f
a t o m s
o f c a r b n
H C 1 0 3 0 2
+
0 . 0 0 0 . 0 2 2
0 1 8 5
+
0 . 0 0 0 . 0 1 3
H
2
0 3 0 1
+
0 . 0 0 0 . 0 2 0
3
3 5
+
0 . 0 0 0 . 2 2
H
0 2 2 2
4
9 4
H y d r o g e n B u l p h i d e
m s
0 3 6 6
+
0 . 0 0 0 . 0 8 0 0
2 4 0
+
. 000 0534
H g
0 2 2 2
0
0 2 4 8
M e t h a n e
C H .
0 3 8 0
+
0 . 0 0 0 , 2 1 0 5 3
+
0 .0 0 0 2 9 4
N 0 3 0 2
+
0 . 0 0 0 , 0 2 2 4
0
2 4 1
+
0 . 0 0 0 , 0 1 8 4
0 2 0 3 0 2
+
0 . 0 0 0 , 0 2 2 4
0 2 1 1
+
0 . 0 0 0 , 0 1 5 , 6 4
S u l p h u r
v a p o r S 2
0
3 8 7
+
0 . 0 0 0 , 0 0 7 0
1 3 5
+
0 . 0 0 0 , 0 0 2 , 4 4
S u l p h u r
d i o x i d e
5
SO 2
0
4 0 6
+
0 . 0 0 0 . 0 9 0
0
1 3 9
+
0 . 0 0 0 , 0 3 1 4
H 2 0
0
3 7 3
+
0 . 0 0 0 , 0 5 0
0
4 6 3
+
0 . 0 0 0 , 0 6 2 4
1
T h i s
c o l u m n g i v e s
t h e
s p e c i f i c h e a t
a t
c o n e t a n t p r e s B u r e
p e r
u n i t v o l u m e r e f e r r e d
t o
0 C , 7 6 0 m m . I t i s e q u a l t o t h e m o l a l h e a t c a p a c i t y , C P ( m o r e c o m m o n l y g i v e n i n r e f e r -
e n c e t a b l e s ) , d i v i d e d b y 2 2 . 4 . C
P
o f c o u r s e , d i f ie r a c o n s i d e r a b l y f r o m C
V1
t h e m o l a l h e a t
c a p a c i t y
a t
c o n s t a n t v o l u m e .
S e e
a l s o f o o t n o t e
3 .
M o s t
o f t h e v a l e s
g i v e n
i n
t h i s t a b l e
a r e d e r i v e d f r o m t h o s e g i v e n
b y
E a s t m a n ,
U . S . B u r .
M i n e s T e c h . P a p e r
4 4 5 , 1 9 2 9 .
2 T h i s c o l u m n g i v e s t h e s p e c i f i c h e a t a t c o n s t a n t p r e s s u r e p e r u n i t w e i g h t . I t i s e q u a l
t o
t h e
m o l a l h e a t c a p a c i t y ,
C
p
,
d i v i d e d
b y t h e
m o l e c u l a r w e i g h t .
S e e
a l s o f o o t n o t e
3 .
8
T h e fi r s t t e r m o f t h e e x p r e s s i o n g i v e n r e p r e s e n t a t h e s p e c i f i c h e a t o f t h e g a s a t 0 C ;
t h e s e c o n d t e r m i s t h e i n c r e m e n t p e r d e g r e e , d i v i d e d b y 2 i n o r d e r t o o b t a i n t h e m e a n b e t w e e n
0 a n d . T o
find
t h e
a c t u a l s pe c i f i c h e a t
a t
t e m p e r a t u r e
, t h e
i n c r e m e n t g i v e n
b y t h e
s e c o n d
t e r m m u s t
b e
d o u b l e d . y
* T h e m e a n s p e c i fi c h e a t s o f a i r ,
O2,
N , C O , H C 1 , a n d
F2
b y v o l u m e a r e g i v e n m o r e
a c c u r a t e l y b y t h e e x p r e s s i o n 0 . 3 1 0 + 0 . 0 0 0 , 0 l o + 0 . 0 0 0 , 0 0 0 , 0 0 1 , 9 2 .
* T h e
m e a n s p e c i f i c h e a t s
o f
CO2
a n d
SO 2
b y
v o l u m e
a r e
g i v e n m o r e a c c u r a t e l y
b y t h e
e x p r e s s i o n
0 406 + 0 . 0 0 0 , 1 0 8 - 0 . 0 0 0 , 0 0 0 , 0 1 2
2
.
8
T h e
m e a n s p e c i f ic h e a t
o f
H2
b y
v o l u m e
i s
g i v e n m o r e a c c u r a t e l y
b y t h e
e x p r e s s i o n
0 . 3 1 0 + 0 . 0 0 0 , 0 0 9 , 0 + 0 . 0 0 0 , 0 0 0 , 0 0 3 , 3
2
.
7
T h e
m e a n s p e c i f i c h e a t
o f
H2O
b y
v o l u m e
i s
g i v e n m o r e a c c u r a t e l y
b y t h e
e x p r e s s i o n
0.373 + 0 . 0 0 0 0 2 0 + 0 . 0 0 0 , 0 0 0 . 0 2 0 2 .
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394
M E T L L U R G IC L P R O B L E M S
T A B L E
X V I . S P E C I F I C H E A T S O F
A L L O Y S
A N D V A R I O U S
S O L I D S 1
( I n k i l o g r a m - c a l o r i e s p e r k i l o g r a m , g r a m - c a l o r i e s p e r g r a m , o r p o u n d - c a l o r i e s p e r
p o u n d )
S u b s t a n c e
A l u m i n u m b r o n z e , 8 8 . 7 C u :
11 . 3 A l
9 2
A l :
8 M g
B r a s s , 6 0 C u : 4 0 Z n
B r a s s , 7 2 C u : 2 8 Z n
B r o n z e ,
8 0 C u : 2 0 S n
C o n s t a n t a n
C u A l s
C u A l j
C u :
S n a l l o y s , 1 0 - 9 0 C u
C u : Z n a l lo y s , 1 0 - 9 0 C u
F e :
C a l l o y s , 0 - 7 C
P b :
S b a l l o y s , 5 - 9 6 S b
M a n g a n i n ,
8 4 C u : 4 N i : 12 M n
M o n e l m e t a l
N i c k e l
si l ve r
P h o s p h o r b r o n z e , 88 C u : 12 S n : 1 P
S o l d e r ,
63 . 7 P b : 36 . 3 S n
S o l d e r , 4 6 . 7 P b : 5 3 . 3 S n
Spec i f i c heat
A s be s to s
C e m e n t ,
p o w d e r .
C h a r c o a l
C l a y ,
d r y
C o a l
G l a s s ,
c r o w n
G l a s s , flint
G r a n i t e
I ce
I ce
M a r b l e . . .
M i c a
P o r c e l a i n .
S a n d
W o o d . . . .
0 . 1 0 4
0.275
0.0917
0.094
0.086
0 . 0 9 8 - 0 . 1 0 2
0.1495
0.1610
0.0545 + 0 . 0 0 0 3 7 X C u
0 . 0 9 2 1 + 0 . 0 0 0 0 0 5 5 X Z n
0 . 1 1 1 4 + 0 . 0 0 4 4 0 X C
0 . 0 3 1 1 + 0 . 0 00 19 5 + S b
0 . 0 9 7 - 0 . 1 0 0
0 . 1 2 7
0 . 0 9 4 - 0 . 0 9 5
0 . 0 8 7 4
0.0407
0 . 0 4 5 1
0 . 1 9 5
0 . 2 0
0 . 1 6
0 . 2 2
0 . 2 4
0 . 1 6 1
0 . 1 1 7
0 . 1 9 2
0 . 5 3
0.392
0 . 2 1
0.206
0 . 2 6
0 . 1 9
0.45 0.65
T e m p e r a t u r e
c .
2 0 - 1 0 0
18
2 0 - 1 0 0
1 4 -
98
1 4 -
9 8
0 - 1 0 0
1 8 - 1 0 0 ( m e a n )
1 8 - 6 0 0 ( m e a n )
1 8 - 1 0 0 ( m e a n )
1 8 - 1 0 0 ( m e a n )
1 7 - 1 0 0 ( m e a n )
2 0 - 1 0 0 ( m e a n )
0 - 1 0 0
2 0 - 4 0 0
0 - 1 0 0
2 0 - 1 0 0
1 2 - 99
1 0 -
99
2 0 -
98
2 0 - 1 0 0
10
2 0 - 1 0 0
1 0 -
50
1 0 -
50
1 2 - 1 0 0
- 10
- 60
0 - 1 0 0
2 0 -
98
1 5 -
950
2 0 - 1 0 0
1 L a r g e l y f r o m .
H a n d b o o k
o f
C h e m i s t r y
a n d
P h y s i c s , 2 5 t h
e d . ,
C h e m i c a l R u b b e r P u b l i s h i n g
C o m p a n y ,
1 9 4 1 - 1 3 4 2 .
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T L E S
3 9 5
T A B L E X V I I . M E A N S P E C I F I C H E A T S O F I R O N - C A B B O N A L L O Y S
1
I n k i l o g r a m - c a l o r i e s per k i l o g r a m , gram-calo ries per g r a m , or pound- calo ries per
p o u n d )
Carbn
percentage
m
17-250C.
e , 17-400C.
m
17-500C.
m
17-680C.
0.17
0.118
0 . 1 3 1
0.139
0.35
0.119
0.45 0.125
0 . 1 3 1 0.139
0.89
0.122
0.128 0.133 0.143
1.22
0.130
0.134
4.06 0.139
0 . 1 4 1
0.144
0.147
H e a t
content
above
0 C . ) of pur
l i q u i d i r o n
at the
m e l t i n g
p o i n t = 334 ca l. per
g r a m . Specific heat of l i q u i d = 0.21 .
H e a t
content
above
0 C. ) of
l i q u i d
pig
i r o n
at the
m e l t i n g
p o i n t = 230 ca l. per
g r a m . Specific hea t of the l i q u i d = 0.15.
1
I n t e r n a t i o n a l C r i t i e a l T a b l e s ,
Y o l . V 1929 .
T A B L E
X V I I I .
M E A N
S P E C I F I C H E A T O F C O K E A N D C O K E A S H
1
I n
k i l o g r a m - c a l o r i e s
per
k i l o g r a m ,
gram-calories per
g r a m ,
or pound-calor ies per
p o u n d )
T e m p e r a t u r e
r a n g e , C.
m ISh
s i l i c a )
cm, coke
w i t h
ash content of:
T e m p e r a t u r e
r a n g e , C.
m ISh
s i l i c a )
5
p e r cent
1 0
p e r
cent
15
per
cent
2 0
pe r
cent
25
pe r
cent
2 0 - 100
0.190
0.193 0.193 0.193 0.192
0.192
2 0 -
200 0.204
0.225
0.224
0.223
0.222
0.220
2 0 - 300
0.217
0.252
0.250 0.248
0.247
0.245
2 0 - 400
0.227
0.277
0.275
0.272
0.269
0.267
2 0 - 500
0.235 0.297
0.294 0.290
0.287
0.284
2 0 - 600
0.242
0.313
0.309
0.306
0.302
0.298
2 0 - 700
0.247 0.327
0.323 0.318 0.314 0.310
2 0 - 800
0.250
0.337
0.333
0.328
0.324
0.319
2 0 - 900
0.253 0.347
0.342
0.337
0.332
0.327
20-1000
0.256
0.356
0 . 3 5 1 0.345
0.340
0.335
20-1100
0.258 0.363 0.359 0.353 0.348
0.342
20-1200
0.369
0.363
0.358
0.352
0.346
1
F r o m
K O P P E K S i n
A n h a l t s z a h l e n
fr de n
E n e r g i e v e r b r a u c h
i n
E i s e n h t t e n w e r k e n ,
Wrmestelle
D u s s e l d o r f
des
V e r e i n s d e u t s c h e r
E i s e n h t t e n l e u t e , 3 d ed.
V e r l a g S t a h l e i s e n
m. b. H . ,
D u s s e l d o r f ,
1931.
-
7/26/2019 Tablas Metalurgicas
10/40
396
METALLURGICAL P ROBLEMS
T A B L E X I X . M E A N S P E C I F I C H E A T S O F
C O M P O U N D S
S O L I D S T A T E ) 1
I n k i l o g r a m - c a l o r i e s p e r
k i l o g r a m ,
g r a m - c a l o r i e s p e r g r a m , o r p o u n d - c a l o r i e s p e r
p o u n d )
S p e c i f i c h e a t
5.126
f
0 . 0 8 4 9
0 . 0 8 8 8
0 . 0 9 1 2
0.0930
0 . 0 7 1 9
0 . 0 7 3 9
0 . 0 7 7 8
0.1 57 + 0 .000105
0 . 1 3 4
0 - 5 4
0 . 0 8 4 5
0 - 5 0
N a F
0 . 2 6 7 + 0 . 0 0 0 0 3 5
0 - 9 8 8
0 . 0 8 5 8
0- 100
N a C l 0 . 2 0 3 9
0
SO
S e e T a b l e
X X
0 . 2 1 0 4
0- 100
S i C
7 090
0 . 2 1 6
0 - 4 0 0
S i C
0 . 2 2 2 + 0 . 0 0 0 0 3 63
7
1 + ~ -
2 7 3 - 1 6 2 9
0 . 2 2 0
0- 600
Sn O 0 090
0 - 4 5
N a s O
0 . 2 2 5
( A s s u m e d )
S n C h 0.09 88 + 0 .0002 441
0 - 2 4 7
N a
2
S 0
4
0 . 2 0 2 2 0
S n C U
0 . 1 4 0 - 9 8
0 . 2 1 0 9 0 - 1 00 S n S 0 . 0 8 4
0 - 5 6
N a N O j
0 . 2 4 7 0 T h 0 2 0 . 0 5 7 1
0
0 . 2 8 8
0 - 2 0 0
0 . 0 5 8 0
O- 50
0 . 3 0 3
0 - 2 5 0
T h C l
0 . 4 0 6
0 - 3 0
N a P O )
0 . 2 1 7
0 - 3 0
T i O s
0.1 68 + 0 .0000541
0 - 5 0 0
N a 4 P 2 0 ?
0 . 2 2 7 0 - 5 0
U s O s
0 . 0 6 7 2
0
N a 2 C O s
0 . 2 6 4
0 - 9 8
0 . 0 7 1 2
0 - 5 0
N a
2
B
(
O i
0 . 2 3 4
0 - 4 5
w o 3
0 . 0 7 8 2 + 0 . 0 0 0 0 1 6 7
0 - 1 2 7 7
N a
2
B
4
O 7 . 1 0 H 2 O Z n O
0 . 11 4 0 + 0 . 0 O 0 0 2 6 7 -
(b rax )
0 . 3 8 5
0 - 3 5
0 . 0 0 0 0 0 0 0 1 9 3 2
0 - 1 3 0 0
N a j A l F ,
2 139
0 . 1 8 4 0
4 -
0 . 0 0 0 1 1 3 3 7 ' + - ' -
2 7 3 - 1 2 7 3
Z n C l
2
0 . 1 3 3 + 0 . 0 0 0 0 3 0 0- 365
Z n S
0 . 1 0 7 8 + 0 . 0 0 0 0 2 6 -
NH4CI
0 . 3 5 8
0
0 . 0 0 0 0 0 0 0 3 1 4
2
0 - 1 0 0 0
0 . 3 7 4
0 - 5 0
ZnSO-4
0 . 1 7 4
0- 100
N i O
0.15 9 + 0 .00001441 0 -10 00
Z n S i O a 0 . 1 6
0
N i S
0 . 1 2 1 2 + 0 . 0 0 0 0 3 5 3
0 - 3 2 4
Z n 2 S i 0 4 0 . 1 4
0
( N H
4
)
2
S 0 4
0 . 3 3 7
0
Z n C O a
0.15 37 + 0.0O0O05
0- 400
0 . 3 4 1
O-
50
ZrO 0.10 34 + 0.00002 481
0 - 1 5 0 0
N i S O