Phosphorodithioic acid, O,O-di-C1-14-alkyl esters, zinc salts
- Createtime： 2026-04-14
- Updatetime： 2026-04-15
Product Details
| useage |
Industrial use
|
| deliveryInfo |
|
| appearance |
liquid
|
| Molecular Weight |
716.35
|
| aliasen |
|
| supplyCapacity |
50000MT/Month
|
| harbor |
Qingdao,China
|
| minorder |
1KG
|
| Appearance |
Amber clear liquid
|
Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and sales of fine chemicals. Headquartered in Jinan, Shandong, China, we are committed to delivering high-quality products to our global partners. Currently, over 90% of our products are exported to developed markets, including North America, Europe, Japan, South Korea, and the Middle East.
CAS: 68649-42-3
Molecular Formula: C??H??O?P?S?Zn
Molecular Weight: 716.35
Alias: Zinc Dialkylphosphorodithioate, ZDTP, ZDDP
Category: Rubber vulcanization accelerator, lubricant additive
Physical and Chemical Properties
- Appearance: Amber transparent liquid or off-white powder
- Density: 1.08–1.13 g/cm3 (20℃)
- Melting Point: >260℃
- Boiling Point: >316℃
- Flash Point: >204℃
- Solubility: Insoluble in water; soluble in organic solvents (toluene, ether, mineral oil)
- Stability: Stable at room temperature; resistant to air/moisture; decomposes at high temperature
- Storage: Sealed, dry, cool place (2–8℃ recommended)
Specification Sheet (Typical)
| Item | Liquid Grade | 75% SiO? Powder Grade | Unit | Test Method |
| Appearance | Amber clear liquid | Off-white powder | – | Visual |
| Phosphorus (P) | 7.2–8.5 | 5.0–6.0 | % | Titration |
| Sulfur (S) | 14.0–18.0 | 9.8–12.6 | % | Titration |
| Zinc (Zn) | 8.5–10.0 | 6.0–7.0 | % | Titration |
| Density (20℃) | 1.08–1.13 | ~1.60 | g/cm3 | Hydrometer |
| Methanol Insolubles | – | 28.5–31.5 | % | Gravimetric |
| pH | 5.5–7.5 | – | – | pH Meter |
Main Application
- Rubber Industry: Fast vulcanization accelerator for NR, EPDM; high crosslinking, heat resistance, no bloom, non-staining.
- Lubricant Additive (ZDDP): Anti-wear, antioxidant, corrosion inhibitor in engine oils, gear oils; forms protective tribofilms.
- Polymer Stabilizer: Light/thermal stabilizer for plastics, coatings; reduces aging from UV/heat.
