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การจัดส่ง:快递, 空运, 陆运, 海运
แนะนำผลิตภัณฑ์
| Parameter Category | Parameter Name | English Value/Specification |
|---|---|---|
| Basic Identification | Chemical Name | 4,5-Dichloro-2-octyl-4-isothiazolin-3-one; Dichloroctylisothiazolinone; DCOIT (DCOI) |
| Abbreviation/INCI Name | DCOIT; 4,5-Dichloro-2-octyl-4-isothiazolin-3-one (INCI); Kathon 287T; Kathon 930 | |
| CAS Registry Number | 64359-81-5 | |
| EINECS/EC Number | 264-814-4 | |
| Molecular Formula | C₁₁H₁₇Cl₂NOS | |
| Molecular Weight | 282.23 g/mol | |
| Chemical Class | Isothiazolinone derivative; halogenated heterocyclic biocide; antifouling agent; dry-film preservative | |
| Physicochemical Properties | Appearance | White to pale yellow crystalline solid (melts near room temperature) |
| Melting Point | 40.0–44.0 °C (literature value) | |
| Boiling Point | Decomposes before boiling (decomposes at >200 °C) | |
| Density (20 °C) | 1.22 g/cm³ (crystalline form, estimated) | |
| Water Solubility (25 °C) | Poorly soluble (<0.01 g/100 mL); slightly soluble in alkaline conditions (pH>8) | |
| Organic Solvent Solubility | Soluble in ethanol, propylene glycol, and non-polar solvents (mineral oil, toluene); miscible with most organic solvents | |
| pH Value (1% Aqueous Suspension) | 6.0–7.5 (neutral range) | |
| LogP (Octanol-Water Partition Coefficient) | 3.5–3.8 (highly lipophilic, favorable for dry-film adhesion) | |
| Stability | Stable at pH 4.0–9.0; heat-stable up to 80 °C for short-term processing; light-stable; non-hygroscopic | |
| Biological Activity | Core Functions | Broad-spectrum antimicrobial (fungi > bacteria > algae); marine antifouling; dry-film preservation; wood protection |
| Mechanism of Action | Disrupts microbial cell membrane integrity; inhibits energy metabolism; chelates metal ions essential for microbial enzymes | |
| Minimum Inhibitory Concentration (MIC) | Aspergillus niger: 0.05–0.2 ppm; Candida albicans: 0.1–0.5 ppm; Staphylococcus aureus: 0.5–1.0 ppm; Marine algae: 0.1–0.3 ppm | |
| Effective Concentration Range | 0.2–1.0% (industrial coatings/ sealants); 0.5–2.0% (marine antifouling paints); 0.1–0.5% (wood preservatives); rarely used in cosmetics (≤0.01%) |
