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Send EmailZinc Dibutyldithiocarbamate, Zinc Dibutyl Dithio Carbamate, ZDBC-80, ZDBC80, Accelerator ZDBC, 136-23-2
ZINC DIBUTYL DITHIOCARBAMATE (ZDBC)
PRODUCT IDENTIFIER INFORMATION
| Parameter | Information |
|---|---|
| Product Name | Zinc Dibutyl Dithiocarbamate (ZDBC) |
| Chemical Name (IUPAC) | Zinc bis(N,N-dibutyldithiocarbamate) |
| CAS Number | 136-23-2 |
| EC Number (EINECS) | 205-232-8 |
| Molecular Formula | C₁₈H₃₆N₂S₄Zn |
| Molecular Weight | 474.14 g/mol |
SECTION 1: CHEMICAL IDENTITY AND DESCRIPTION
| Parameter | Information |
|---|---|
| Chemical Name (IUPAC) | Zinc bis(N,N-dibutyldithiocarbamate) |
| Systematic Name | Dibutyldithiocarbamic Acid Zinc Salt |
| Synonyms | Zinc Dibutyl Dithiocarbamate, ZDBC, ZDBC-80, Dibutyl Dithio Carbamate Zinc Salt, Çinko Dibütil Ditiyokarbamat |
| Trade Names | Rhenocure ZDBC, Rhenogran ZDBC, Vulkacit ZDBC, Altax ZDBC |
| Abbreviations | ZDBC, ZDBC-80 (masterbatch form) |
| CAS Number | 136-23-2 |
| EC Number (EINECS) | 205-232-8 |
| Molecular Formula | C₁₈H₃₆N₂S₄Zn |
| Molecular Weight | 474.14 g/mol |
| Chemical Class | Organometallic dithiocarbamate salt (medium-speed accelerator for rubber vulcanization) |
| Physical State (20°C) | Solid (white to light yellow powder or granules) |
| Odor | Characteristic slight |
| Taste | Not applicable (industrial rubber additive) |
SECTION 2: PHYSICAL AND CHEMICAL PROPERTIES
| Property | Value | Test Method |
|---|---|---|
| Appearance | White to light yellow powder or granules | Visual |
| Odor | Characteristic slight | Olfactometric |
| Molecular Weight | 474.14 g/mol | Calculated |
| Melting Point | ~200°C (with decomposition) | DSC |
| Density (25°C) | ~1.20 – 1.30 g/cm³ | ASTM D4052 |
| Solubility in Water | Insoluble | General Method |
| Solubility in Organic Solvents | Soluble in carbon disulfide, chloroform, benzene; slightly soluble in ethanol, acetone | General Method |
| Active Content (Masterbatch) | ~75-80% (ZDBC-80) | TGA |
| Stability | Stable under normal conditions; decomposes at high temperatures | |
| Flash Point | >200°C | ASTM D93 |
SECTION 3: CHEMICAL PROPERTIES AND REACTIVITY
| Parameter | Information |
|---|---|
| Chemical Character | Organometallic dithiocarbamate; medium-speed accelerator for sulfur vulcanization |
| Stability | Stable under normal conditions; decomposes at elevated temperatures (>200°C) |
| Decomposition Products (Heating) | CO, CO₂, NOx, SOx, ZnO, zinc sulfide |
| Incompatible Materials | Strong oxidizing agents, strong acids |
| Nitrosamine Risk | Low (does not produce carcinogenic nitrosamines during vulcanization) |
| Vulcanization Mechanism | Releases active sulfur and zinc ions at curing temperature; forms crosslinks between polymer chains |
| Hazardous Polymerization | Does not occur |
SECTION 4: RUBBER ACCELERATORS COMPARISON
| Property | ZDBC | ZDEC | ZDMC | MBT | CBS |
|---|---|---|---|---|---|
| CAS Number | 136-23-2 | 14324-55-1 | 137-30-4 | 149-30-4 | 95-33-0 |
| Chemical Class | Dithiocarbamate | Dithiocarbamate | Dithiocarbamate | Thiazole | Sulfenamide |
| Acceleration Speed | Medium-fast | Ultra-fast | Ultra-fast | Medium-fast | Fast (delayed) |
| Processing Safety | Good | Low (scorch risk) | Low (scorch risk) | Good | Excellent |
| Nitrosamine Risk | Low | Low | Medium | No | No |
| Aging Resistance | Excellent | Good | Good | Good | Good |
| Primary Use | NR, SBR, NBR, technical rubber | Latex, low-temp cure | Latex, adhesive | General rubber | Tire, mechanical goods |
| Vulcanization Temperature | 130-160°C | 80-120°C | 80-120°C | 140-160°C | 140-180°C |
| Typical Dosage (phr) | 0.5-2.0 | 0.5-2.0 | 0.5-2.0 | 1.0-3.0 | 1.0-3.0 |
SECTION 5: FUNCTIONAL PROPERTIES AND MECHANISM OF ACTION
| Property | Description |
|---|---|
| Medium-Fast Accelerator | Provides controlled vulcanization rate; better processing safety than ultra-fast dithiocarbamates (ZDEC, ZDMC) |
| Excellent Aging Resistance | Enhances long-term thermal and oxidative stability of rubber compounds |
| Nitrosamine-Free | Does not produce carcinogenic nitrosamines during vulcanization; suitable for sensitive applications |
| Good Processing Safety | Lower scorch risk compared to ZDEC and ZDMC; suitable for compounds requiring longer processing times |
| Secondary Accelerator | Can be used as secondary accelerator in combination with thiazoles or sulfenamides for optimized cure systems |
| Versatile Application | Compatible with both natural rubber (NR) and synthetic rubbers (SBR, NBR) |
| Zinc Source | Provides active zinc for crosslinking reactions in sulfur vulcanization systems |
SECTION 6: PRIMARY APPLICATION AREAS
| Sector / Application | Function | Typical Dosage (phr) |
|---|---|---|
| Natural Rubber (NR) | Secondary accelerator, aging resistance enhancement | 0.5 – 2.0 |
| Synthetic Rubber (SBR, NBR) | Secondary accelerator | 0.5 – 2.0 |
| Technical Rubber - Hoses | Controlled vulcanization, aging resistance | 0.5 – 2.0 |
| Technical Rubber - Gaskets, Seals | Aging resistance, compression set improvement | 0.5 – 2.0 |
| Technical Rubber - Molded Parts | Controlled cure rate | 0.5 – 2.0 |
| Medical Products | Nitrosamine-free accelerator (sensitive applications) | 0.5 – 1.5 |
| General Industrial Rubber | Secondary accelerator with thiazoles/sulfenamides | 0.5 – 2.0 |
| Automotive Rubber (Non-Tire) | Secondary accelerator in belts, hoses, mounts | 0.5 – 2.0 |
SECTION 7: QUALITY SPECIFICATIONS (TECHNICAL GRADE)
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | White to light yellow powder or granules | Visual |
| Active Content (ZDBC-80) | 75 – 80% (masterbatch) / ≥ 98% (pure) | TGA / AAS |
| Zinc Content | 13 – 15% | AAS / Complexometric Titration |
| Melting Point | ~200°C (with decomposition) | DSC |
| Loss on Drying (105°C, 2 hours) | ≤ 1.0% | Gravimetric |
| Residue on Sieve (100 mesh) | ≤ 0.5% | Sieve Analysis |
| Heavy Metals (as Pb) | ≤ 10 ppm | ICP-MS |
| Lead (Pb) | ≤ 2 ppm | ICP-MS |
| Cadmium (Cd) | ≤ 1 ppm | ICP-MS |
SECTION 8: TOXICOLOGICAL PROFILE
| Parameter | Value |
|---|---|
| Acute Oral Toxicity (LD50, Rat) | > 2,000 mg/kg (low toxicity) |
| Skin Irritation | Mild irritant |
| Eye Irritation | Mechanical irritant (dust) |
| Respiratory Irritation | Inhalation of dust may cause mechanical irritation |
| Skin Sensitization | Low sensitization potential |
| Carcinogenicity | Not classified; low nitrosamine risk |
| Mutagenicity | Negative in standard tests |
| Environmental Toxicity | Harmful to aquatic organisms |
SECTION 9: GHS CLASSIFICATION AND LABELING
GHS Classification (compliant with 1272/2008/EC):
| Hazard Class | Category | H-Statement |
|---|---|---|
| Skin Irritation | Category 2 | H315 |
| Eye Irritation | Category 2 | H319 |
| STOT - SE | Category 3 | H335 |
| Aquatic Toxicity (Chronic) | Category 3 | H412 |
Signal Word: WARNING
Hazard Pictograms: GHS07 (Exclamation Mark)
Hazard Statements (H-Codes):
| Code | Statement |
|---|---|
| H315 | Causes skin irritation |
| H319 | Causes serious eye irritation |
| H335 | May cause respiratory irritation |
| H412 | Harmful to aquatic life with long lasting effects |
SECTION 10: PRECAUTIONARY STATEMENTS (P-CODES)
| Code | Statement |
|---|---|
| P261 | Avoid breathing dust |
| P264 | Wash hands thoroughly after handling |
| P271 | Use only outdoors or in a well-ventilated area |
| P280 | Wear protective gloves/eye protection |
| P302+P352 | IF ON SKIN: Wash with plenty of water and soap |
| P304+P340 | IF INHALED: Remove person to fresh air and keep comfortable for breathing |
| P305+P351+P338 | IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present |
| P312 | Call a POISON CENTER/doctor if you feel unwell |
| P501 | Dispose of contents/container to approved hazardous waste facility |
SECTION 11: FIRST AID MEASURES
| Exposure Route | Action to Take |
|---|---|
| Inhalation | Move to fresh air. Seek medical attention if respiratory irritation persists. |
| Skin Contact | Wash with plenty of water and soap for at least 15 minutes. Remove contaminated clothing. |
| Eye Contact | Rinse immediately with plenty of water for at least 15 minutes. Remove contact lenses if present. Seek medical attention. |
| Ingestion | Rinse mouth with water. Do NOT induce vomiting. Drink plenty of water. Seek medical attention. |
SECTION 12: FIREFIGHTING MEASURES
| Parameter | Information |
|---|---|
| Fire Hazard | Combustible organic powder |
| Hazards During Fire | CO, CO₂, NOx, SOx, ZnO |
| Suitable Extinguishing Media | Water mist, CO₂, dry chemical powder, foam |
| Special Protective Equipment | Self-contained breathing apparatus (SCBA), full protective clothing |
| Special Precautions | Prevent dust accumulation; avoid sparks |
SECTION 13: STORAGE AND SHELF LIFE
| Parameter | Information |
|---|---|
| Storage Conditions | Cool (15-25°C), dry, well-ventilated area; protect from direct light |
| Container Requirements | Tightly closed, moisture-proof containers |
| Keep Away From | Strong oxidizing agents, strong acids, heat sources |
| Shelf Life | 24 months (unopened original packaging under appropriate storage conditions) |
| Stability Note | Stable under normal conditions; avoid storage above 40°C to prevent premature decomposition |
SECTION 14: PACKAGING OPTIONS
| Packaging Type | Quantity | Material |
|---|---|---|
| Kraft bag with PE inner liner | 25 kg | Kraft paper + PE |
| PP woven bag with PE inner liner | 25 kg | PP woven + PE |
| Fiber drum | 25-50 kg | Fiberboard + PE |
| Big-Bag | 500-1000 kg | Polypropylene (with PE inner liner) |
SECTION 15: TRANSPORTATION INFORMATION
| Parameter | Information |
|---|---|
| UN Number | Not regulated (not hazardous for transport) |
| Hazard Class | Not applicable |
| Packing Group | Not applicable |
| ADR/RID | Not regulated |
| IMDG Code | Not regulated |
| IATA (Air) | Not regulated |
| Marine Pollutant | No |
| Transport Temperature | Ambient; protect from heat and moisture |
SECTION 16: REGULATORY STATUS
| Region / Authority | Status |
|---|---|
| European Union | REACH registered; industrial rubber chemical |
| USA (TSCA) | Listed |
| FDA (Medical Rubber) | Suitable for certain medical applications (nitrosamine-free) |
| Turkey | Industrial chemical; subject to chemical registration regulations |
| BfR (Germany) | Suitable for food contact rubber articles (with limitations) |
SECTION 17: OTHER NAMES AND SYNONYMS
| Type | Name |
|---|---|
| Common Names | Zinc Dibutyl Dithiocarbamate, ZDBC, ZDBC-80 |
| Chemical Names | Zinc bis(N,N-dibutyldithiocarbamate), Dibutyldithiocarbamic Acid Zinc Salt |
| Trade Names | Rhenocure ZDBC, Rhenogran ZDBC, Vulkacit ZDBC, Altax ZDBC |
| Turkish Names | Çinko Dibütil Ditiyokarbamat |
| CAS Number | 136-23-2 |
| EC Number | 205-232-8 |
SECTION 18: ZDBC SECTORAL SUITABILITY TABLE
| Sector | ZDBC Suitability | Description |
|---|---|---|
| Natural Rubber | High | Enhances aging resistance |
| Synthetic Rubber (SBR, NBR) | Medium | Can be used with suitable formulation |
| Latex Systems | Limited | Weak in systems requiring rapid curing |
| Automotive Tires | Limited | May play auxiliary role in compounds |
| Medical Products | Limited | Nitrosamine-free but low curing speed |
| General Industrial Rubber | Medium | Can be used in molded products |
| Technical Rubber | Medium | Can be included in hose and gasket systems |
SECTION 19: SUMMARY TABLE
| Parameter | Value |
|---|---|
| Product | Zinc Dibutyl Dithiocarbamate (ZDBC) |
| CAS Number | 136-23-2 |
| Molecular Formula | C₁₈H₃₆N₂S₄Zn |
| Molecular Weight | 474.14 g/mol |
| Appearance | White to light yellow powder or granules |
| Melting Point | ~200°C |
| Primary Function | Medium-fast rubber vulcanization accelerator |
| Nitrosamine Risk | Low |
| Shelf Life | 24 months |
| GHS Signal Word | Warning |
SECTION 20: CRITICAL WARNINGS AND BEST PRACTICES
CRITICAL WARNINGS:
-
Lower Curing Speed: ZDBC provides slower acceleration compared to ZDEC and ZDMC; may require combination with faster accelerators for optimal cure rate.
-
Latex Limitation: Limited compatibility with latex dipping systems; not suitable for rapid-cure latex applications.
-
Dispersion: Medium dispersion quality; masterbatch form (ZDBC-80) recommended for homogeneous mixing.
-
Dust Control: Fine powder may cause respiratory irritation; use appropriate ventilation and PPE.
-
Environmental Hazard: Harmful to aquatic organisms; prevent release to the environment.
BEST PRACTICE RECOMMENDATIONS:
-
Accelerator Combination: Use at 0.5-2.0 phr as secondary accelerator with thiazoles (MBT) or sulfenamides (CBS) for balanced cure systems.
-
Aging Resistance: Preferred for rubber compounds requiring excellent long-term aging resistance (hoses, gaskets, seals).
-
Masterbatch Form: Prefer ZDBC-80 pre-dispersed form for better dispersion and reduced dust exposure.
-
Processing Temperature: Maintain processing temperatures below 130°C to ensure adequate processing safety.
-
Storage: Store in cool, dry environment below 40°C; keep containers tightly closed to prevent moisture absorption.
LEGAL DISCLAIMER:
The information provided in this document is presented in good faith based on our current knowledge and experience; however, since all usage conditions are beyond our control, it does not constitute a binding specification or warranty. This Technical Data Sheet is for informational purposes only. Users are obligated to test the suitability for their own applications. For complete safety, storage, handling, transportation, disposal, and regulatory compliance information, refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier.
