Customization: | Available |
---|---|
CAS No.: | 8050-09-7 |
Formula: | C20h30o2 |
Still deciding? Get samples of US$ 0/kg
Request Sample
|
Suppliers with verified business licenses
Audited by an independent third-party inspection agency
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 |
Packaging Detials:
In net 25 kg /bag Port of departure:Tianjin port
Certification:
Our warehouse:
Why choose us?
Partners:
1. Are you trading company or Manufacturer ?
We are factory.
2.About Sample
We provide samples, but you need to pay the freight.
3. About Material
We can customize the material according to customers' requirement.
4. About Quality
All the products must be tested strictly according to the testing procedure before shipment.
5. About Delivery Period
Normally delivered in 7-15 working days after the confirmation of order& payment. And it varies according to the material and quantity.