DIALDEHYDE STARCH Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 9047-50-1 |
| Product name | DIALDEHYDE STARCH |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty GradeFood 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 DIALDEHYDE STARCH
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk DIALDEHYDE STARCH Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of DIALDEHYDE STARCH
| Industry | Application | Process |
|---|---|---|
| Textiles | Improving fabric dimensional stability (anti-wrinkle finishing) | Dialdehyde starch acts as a crosslinking agent, reacting with cellulose molecules |
| Pulp and Paper | Enhancing paper wet strength | Dialdehyde starch forms covalent bonds with cellulose |
| Food Industry | Used as a thickener or stabilizer | Modified dialdehyde starch is applied to improve food texture |
| Pharmaceuticals | Preparation of sustained-release drug carriers | Dialdehyde starch participates in constructing controlled drug release systems |
| Agriculture | Soil conditioner for improved water retention | Dialdehyde starch binds to soil particles to optimize soil structure |
Manufacturing Quality Control of DIALDEHYDE STARCH
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Aldehyde content | Hydroxylamine Hydrochloride Titration Method | Hydroxylamine reacts with aldehyde groups to form oxime and releases an equivalent amount of hydrochloric acid, which is then titrated with a standard alkaline solution to calculate the aldehyde content. |
| Iodimetric Method | Based on the principle that aldehyde groups can be oxidized by iodine. In weakly alkaline conditions, it reacts with iodine, and the remaining iodine is titrated with sodium thiosulfate to indirectly determine the aldehyde content. | |
| Purity of Dialdehyde Starch | UV-Visible Spectrophotometry (UV-Vis) | Determine the content of impurities (such as unreacted raw materials or by-products) by measuring characteristic absorption peaks (usually around 280 nm), thus evaluating purity. |
| Moisture Content | Drying Loss Method (Atmospheric or Vacuum Drying) | Dry the sample at 105°C until constant weight, and calculate the moisture content based on the mass loss. |
| Karl Fischer Titration (Karl Fischer) | Utilizes the quantitative reaction between iodine and sulfur dioxide in methanol with water, for precise determination of trace moisture. | |
| Viscosity | Rotational Viscometer Method | Measure the flow resistance of dialdehyde starch solution under specified temperature and speed, reflecting its degree of molecular degradation and processing performance. |
| Color and Appearance | Visual Color Comparison / Colorimeter Measurement | Compare with standard color solutions or use a colorimeter to measure L*a*b* values, evaluating whether the product's color meets the standard. |
| Swelling Properties | Differential Scanning Calorimetry (DSC) | Determine the endothermic peak of dialdehyde starch during heating to analyze its gelatinization temperature and enthalpy change, reflecting structural changes. |
| Rapid Visco Analyzer (RVA) | Monitor the viscosity changes of starch during heating, holding, and cooling processes dynamically, to evaluate its processing applicability. | |
| Substitution Degree (DS, Degree of Substitution) | Chemical Titration Combined with Elemental Analysis or Nuclear Magnetic Resonance (NMR) | Calculate substitution degree from aldehyde content; ¹H NMR can directly quantify the proportion of aldehyde groups substituted on glucose units. |
| Particle Size Distribution | Laser Particle Size Analysis | Use laser scattering principles to measure the particle size distribution of powders, affecting solubility and application performance. |
| pH Value | pH Meter Measurement | Measure the pH of the dialdehyde starch solution after dissolving in water using a calibrated pH meter to determine its acidity or alkalinity. |
| Heavy Metal Content | Atomic Absorption Spectroscopy (AAS) or ICP-MS | Digest the sample and determine the content of heavy metal ions such as lead, arsenic, mercury, and cadmium to ensure compliance with safety standards. |
| Microbial Limit | Microbial Cultivation Method | Perform tests for total aerobic bacteria count, mold and yeast count, and pathogenic bacteria (e.g., E. coli) according to pharmacopoeia or food standards. |
Technical Specifications of DIALDEHYDE STARCH
| Test Item | Specification |
|---|---|
| Appearance | White to off-white powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.0% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.3% |
| Solubility | Soluble in water with slight opalescence; insoluble in ethanol and acetone |
| Odor | Characteristic mild starchy odor |
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 DIALDEHYDE STARCH
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| Lot/Batch Number | *Required fields | |
Packaging of DIALDEHYDE STARCH
Industrial DIALDEHYDE STARCH 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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