Accelerator ZDBC(BZ)

Product name: ZDBC(BZ)
Chemical name: Zinc dibutyl dithiocarbamate
Structure:

CAS No.: 136-23-2

Specification:

Item	Granular	Powder	Oil powder
Appearance	White granular	White powder	White oily powder
Initial melting point [≥ °C]	104.0	104.0	104.0
Loss on drying [≤ %]	0.50	0.50	0.50
Zinc content [%]	13-15	13-15	13-15
Residue on 100 μm sieve [≤ %]	–	0.1	–
Granular diameter mm	1.5-3	–	–
Broken strength [N]	2-5	–	–
Oil content [%]	–	–	1.0-2.0

What is ZDBC?
Zinc dibutyldithiocarbamate (ZDBC) is an organometallic compound belonging to the class of zinc dithiocarbamate accelerators, widely used in the vulcanization of natural and synthetic rubbers. Its structure consists of a zinc center coordinated by two dibutyldithiocarbamate ligands. ZDBC is valued for its ultra-fast vulcanization activity, low activation energy, and ability to effectively generate zinc–sulfur crosslinks, making it an important additive in industrial rubber processing.

Properties:
Has a faint odor and a specific gravity of 1.24–1.28. It dissolves well in benzene, chloroform, and carbon disulfide, but is not soluble in water or dilute alkalis.

Application:
Used as a primary or secondary ultra-accelerator in NR, IR, BR, SBR, NBR, HR, EPDM, and their latex systems. Its performance is similar to PZ and EZ, though it provides slightly lower acceleration in dry rubber. In both natural and synthetic latexes, it offers faster vulcanization at normal (lower) temperatures compared with PZ and EZ, while also reducing the risk of scorching and blooming.

Packaging:
Supplied in 25 kg bags.

Storage:
Store in a tightly sealed container in a cool, well-ventilated area. Under standard storage conditions, the recommended maximum shelf life is 1 year.