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- > Disproportionated rosin
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Disproportionated rosin
Obtained by isomerizing gum rosin with a catalyst.
Specifications:
| Item | Extra grade | 1st grade |
| Color, not darker than rosin color grade | WW grade | N grade |
| Abietic Acid （ % ） , max | 0.1 | 0.5 |
| Dehydroabietic Acid （ % ） min | 52 | 45 |
| Softening Point （ by Ball & Ring ） ℃, min | 75 | |
| Acid No （ mg KOH/g ） , min | 155 | 150 |
| Unsaponifiable Material （ % ） max | 10 | 12 |
Special properties and uses
Mainly used as polymer emulsification in synthetic rubber production, also widely used in
producing water- soluble pressure sensitive adhesive, etc.
Packing, storing and transporting
-in galvanized iron drum, 225 kg net each drum
-must be kept away from heat and flame.