Usage:
Suitable to the dye, plastic, pharmaceutical and sulfonate derivatives of phthalic anhydride, naphthoic acid, t naphtyylamine and naphthalene, also as raw materials for penetrant and diffusing agent as well as production of medicine and pesticide.
Technical index:
|
Index
|
Primary
|
Secondary
|
Analysis method
|
|
Appearance
|
Laminated or white powder or pale yellow crystal
|
By eyes
|
|
Methylnaphthalene content %≥
|
95
|
92
|
Chromatography
|
|
Non-volatile material
%≤
|
0.04
|
0.06
|
GB/T6701
|
|
Ash %≤
|
0.01
|
0.02
|
GB/T508
|
Note:Non-volatile material takes production data as the standard.
Package:
Weaving bag package, net weight 25kg/bag. |
