技术指标:
指标名称
Name Index
|
精萘 Refined
Napthalene
|
工业萘 Industrial
Nathalene
|
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优等品High-class
|
一等品Grade One
|
合格品Qualified
|
优等品
High-class
|
一等品
Grade One
|
合格品
Qualified
|
|
外观 Appearance
|
白色粉状,片状晶体
White powder, flat
crystal
|
白色略带微红或微黄粉状,片状晶体
White powder with pinkish or
light yellow, flat crystal
|
白色允许带微红或微黄粉状,片状晶体
White powder allows with pinkish
or light yellow, flat crystal
|
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结晶点 不小于%
Crystallization Point (Not
less than)
|
79.8
|
79.6
|
79.3
|
78.3
|
78
|
77.5
|
不挥发物 不大于 %
Nonvolatile Matter
(Not more than)
|
--
|
0.01
|
0.02
|
0.04
|
0.06
|
0.08
|
灰分 不大于 % Ash Content (Not
more than)
|
--
|
0.006
|
0.008
|
0.01
|
0.01
|
0.02
|
酸洗比色 不深于
Scouring Colorimetric
(Not deeper than)
|
No.2
|
No.4
|
--
|
--
|
--
|
--
|