Product name: 1,4-Dichlorobenzene (p-Dichlorobenzene / PDCB)
CAS No.: 106-46-7
Chemical Name: 1,4-DichlorobenzeneSynonyms: p-Dichlorobenzene, Paradichlorobenzene, PDCB
Molecular Formula: C₆H₄Cl₂
Molecular Weight: 147.00
EINECS No.: 203-400-5
UN Number: 1592Hazard Class: 6.1 (Toxic substance)
1. Chemphysical Properties
Appearance White crystalline flake / granule
Odor Characteristic aromatic odor
Melting Point 52 ~ 54 ℃Boiling Point 173 ~ 175 ℃
Density (20℃) 1.24 g/cm³
Flash Point (CC) 66 ℃
Vapor Pressure (25℃) 0.8 hPa
Solubility Slightly soluble in water (0.08 g/L @25℃); soluble in ethanol, ether, benzene, chloroform
Sublimation Sublimes readily at room temperature
Stability Stable under normal conditions; incompatible with strong oxidants, aluminum alloys
2. Quality Specification (Industrial Grade ≥99.5%)
| Test Item | Specification | Test Method |
|---|---|---|
| Assay (GC) | ≥99.5% | GC |
| Moisture | ≤0.10% | Karl Fischer |
| o-Dichlorobenzene | ≤0.10% | GC |
| m-Dichlorobenzene | ≤0.05% | GC |
| Residue on Ignition | ≤0.05% | / |
3. Application & Use
Moth repellent & deodorant: Raw material for mothballs, air freshener blocks
Biocide & fungicide: Mildew prevention for textiles, leather, paper products
Chemical intermediate: Synthesis of dyes, pharmaceuticals, engineering plasticsTextile industry: Carrier for disperse dyeing
Analytical reagent: Organic synthesis & lab reagent
4. Packing
Standard: 25kg woven bag / kraft bag with inner PE liner
500kg / 1000kg jumbo bag available
5. Storage & Transportation
Storage: Sealed in cool, dry, well-ventilated warehouse, away from oxidants, food & feed. Prevent volatilization. Shelf life: 24 months
Transport: UN1592, Class 6.1 toxic goods. Follow dangerous goods transport regulation; avoid long-term inhalation of vapor
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