Customization: | Available |
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CAS No.: | 8050-09-7 |
Formula: | C20h30o2 |
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Gum Rosin/Colophony
Parameter | Grade | ||
Standard: GB8145-87 | X | WW | WG |
APPEARANCE | Transparent | Transparent | Transparent |
COLOR | Light Yellow | Pale Yellow | Yellow |
SOFTENING POINT(R&B)°C | 77 | 76 | 75 |
ACID NUMBER(mg KOH / g)≥ | 166 | 166 | 164 |
UNSAPONIFIABLE MATTER % ≤ | 5 | 5 | 5 |
ETHANOL INSOLUBLES % ≤ | 0.03 | 0.03 | 0.03 |
ASH CONTENT % ≤ | 0.02 | 0.02 | 0.02 |
Index |
Super Grade X |
1st Grade WW |
2nd Grade WG |
3rd Grade N |
Color |
Yellowish |
Pale yellow |
Yellow |
Deep yellow |
Conforming to the demands on the standard color spaces of rosin color grade glass |
||||
Softening Point (ring & ball) °C ≥ |
76 |
75 |
74 |
|
Acid value mgKOH/g≥ |
166 |
165 |
164 |
|
Insoluble matter in ethanol % ≤ |
0.03 |
0.03 |
0.04 |
|
Non-saponifiable matter %≤ |
5 |
5 |
6 |
|
Ash %≤ |
0.02 |
0.03 |
0.04 |
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