Sodium 4-hydroxybenzoate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 114-63-6 |
| Product name | Sodium 4-hydroxybenzoate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty GradeFood GradeCosmetic 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 Sodium 4-hydroxybenzoate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Sodium 4-hydroxybenzoate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Sodium 4-hydroxybenzoate
| Industry | Application | Process |
|---|---|---|
| Food Industry | Preservative to inhibit mold and yeast growth | Added to beverages, sauces, and pickled foods; pH controlled below 4.5 to enhance preservative efficacy |
| Pharmaceutical Industry | Antibacterial agent for topical formulations such as ointments and lotions | Incorporated as a stabilizing component in topical medications to extend shelf life |
| Cosmetics Industry | Preservative to prevent microbial contamination | Blended into emulsions, creams, and toners at typical concentrations of 0.1–0.3% |
| Animal Feed Industry | Preservative to extend feed shelf life | Added to animal feed to suppress fungal proliferation and maintain nutrient stability |
| Textile Industry | Dyeing auxiliary to improve dyeing uniformity | Used in combination with dyes to regulate acid-base balance during dyeing and improve color fastness |
Manufacturing Quality Control of Sodium 4-hydroxybenzoate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Acid-Base Titration | Quantifies sodium 4-hydroxybenzoate by titration with standardized HCl after acidification and back-titration. |
| Loss on Drying | Gravimetric Method | Measures weight loss after drying at 105 C for 2 hours to determine volatile content including water and solvents. |
| Water Content | Karl Fischer Titration | Determines trace water via coulometric or volumetric reaction with iodine in a methanol-based reagent. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantifies total heavy metals by atomizing the sample and measuring absorbance of specific elemental wavelengths. |
| Arsenic | Silver Diethyldithiocarbamate (SDDC) Method | Converts arsenic to arsine gas, which reacts with SDDC to form a colored complex measured spectrophotometrically. |
| Chloride | Potentiometric Titration with AgNO3 | Measures chloride ions by titration with silver nitrate using a silver indicator electrode. |
| Sulfate | Gravimetric Method | Precipitates sulfate as BaSO4 and determines content by weighing the dried precipitate. |
| pH (1% aqueous solution) | pH Meter Measurement | Measures hydrogen ion activity in a standardized 1% w/v aqueous solution at 25 C. |
| Related Substances | High Performance Liquid Chromatography (HPLC) | Separates and quantifies impurities (e.g., 4-hydroxybenzoic acid, sodium chloride) using reverse-phase C18 column and UV detection. |
| Residue on Ignition | Gravimetric Method | Determines inorganic ash content by ignition at 600-700 C followed by weighing of residual material. |
| Iron | UV-Vis Spectrophotometry | Measures Fe(II)-1,10-phenanthroline complex absorbance at ~510 nm after reduction and chelation. |
| Microbial Limits | Membrane Filtration and Plate Count | Detects aerobic microorganisms by filtration, membrane transfer to agar media, and colony enumeration after incubation. |
Technical Specifications of Sodium 4-hydroxybenzoate
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.5% (by LC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.2% |
| Heavy Metals | <=10 ppm (as Pb) |
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 Sodium 4-hydroxybenzoate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Sodium 4-hydroxybenzoate
Packaging of Sodium 4-hydroxybenzoate
Industrial Sodium 4-hydroxybenzoate 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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