Dichloromaleic anhydride Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1122-17-4 |
| Product name | Dichloromaleic anhydride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for Dichloromaleic anhydride
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Dichloromaleic anhydride Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Dichloromaleic anhydride
| Industry | Application | Process |
|---|---|---|
| Pesticides | Intermediate for synthesizing herbicides and insecticides | Used as a key raw material in condensation, cyclization, and related reactions |
| Pharmaceuticals | Preparation of active pharmaceutical ingredients (APIs) or intermediates | Applied to construct heterocyclic structures and participate in amide formation, esterification, and other synthesis steps |
| Polymers | Production of functional polymers or additives | Employed as a monomer or modifier in polymerization reactions (e.g., polyamide, polyester) |
| Dyes | Intermediate for anthraquinone dye synthesis | Introduces chloromaleic acid functionality via substitution and condensation reactions |
| Organic Synthesis | Electrophilic reagent or bifunctional building block | Utilized in Diels–Alder reactions, nucleophilic substitution, and other synthetic processes |
Manufacturing Quality Control of Dichloromaleic anhydride
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with UV detection | Quantitative determination based on peak area comparison against a certified reference standard using reversed-phase chromatography and UV absorbance at 220-230 nm. |
| Moisture Content | Karl Fischer titration | Electrochemical titration measuring water content via iodine-sulfur dioxide reaction in a methanol-based solvent system. |
| Residue on Ignition | Gravimetric analysis | Determination of non-volatile inorganic impurities by high-temperature ashing followed by weighing of residual ash. |
| Chloride Impurities | Ion Chromatography (IC) | Separation and quantification of chloride anions using anion-exchange column and conductivity detection. |
| Heavy Metals | ICP-OES | Multi-element detection of Pb, Cd, Hg, As, Cr after acid digestion, based on element-specific atomic emission intensities. |
| Melting Point | Capillary melting point apparatus | Thermal transition measurement using controlled heating and visual observation of solid-to-liquid phase change. |
| Organic Volatile Impurities | Headspace GC-FID | Detection of residual solvents or low-boiling impurities by gas chromatographic separation and flame ionization detection. |
| Acid Value | Acid-base titration with NaOH | Neutralization of acidic functional groups using standardized sodium hydroxide solution and phenolphthalein endpoint detection. |
| Color | APHA Color Scale (Visual or Spectrophotometric) | Comparison of sample solution color intensity to platinum-cobalt standards using visual assessment or spectrophotometric absorbance at 455 nm. |
| Particle Size Distribution | Laser Diffraction | Analysis of dry or wet dispersed particles by measuring angular dependence of scattered laser light intensity. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light caused by chiral compounds in solution at specified concentration and path length. |
| Residual Solvents (e.g., acetone, toluene) | GC-FID with external calibration | Quantitative analysis of common process solvents using capillary GC separation and flame ionization detection with calibration curves. |
Technical Specifications of Dichloromaleic anhydride
| Test Item | Specification |
|---|---|
| Appearance | White crystalline powder |
| Purity | >=98.5% (GC-MS) |
| Melting Point | 162–166°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Residue on Ignition | <=0.1% |
| Acid Value (mg KOH/g) | 420–440 mg KOH/g |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of Dichloromaleic anhydride
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Dichloromaleic anhydride
Packaging of Dichloromaleic anhydride
Industrial Dichloromaleic anhydride Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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