PHOSPHATE STANDARD Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 14265-44-2 |
| Product name | PHOSPHATE STANDARD |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeElectronic GradeMaterial GradeReagent Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| 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 PHOSPHATE STANDARD
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk PHOSPHATE STANDARD Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of PHOSPHATE STANDARD
| Industry | Application | Process |
|---|---|---|
| Food Industry | pH regulator, nutritional fortificant | Dissolved in water and uniformly mixed before addition to food products |
| Agriculture | Fertilizer | Blended into soil or applied as a foliar spray |
| Electronics Industry | Cleaning agent, etchant | Dissolved in water for use in cleaning and etching during semiconductor manufacturing |
| Pharmaceutical Industry | Active pharmaceutical ingredient (API) | Used as a reactant in drug synthesis |
| Laboratory | Buffer solution | Dissolved in water to prepare buffer solutions |
Manufacturing Quality Control of PHOSPHATE STANDARD
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the color and condition of the sample under natural light; it should be white crystals or powder with no visible impurities. |
| Identification | Infrared Spectroscopy (IR) | Compare the sample spectrum with a standard reference, identifying characteristic absorption peaks (e.g., P=O, P–O–H) to confirm its chemical structure. |
| Chemical Reaction Method | Perform qualitative reactions for potassium ions (purple flame test) and phosphate ions (yellow precipitate with ammonium molybdate). | |
| Main Content (Purity of KH₂PO₄) | Acid-Base Titration | Use the acidity of dihydrogen phosphate, titrate with standard NaOH solution using phenolphthalein as an indicator, and calculate the KH₂PO₄ content. |
| Potentiometric Titration (More Accurate) | Use an automatic titrator with a pH electrode to precisely determine the titration endpoint, suitable for high-precision quantitative analysis. | |
| pH Value | pH Meter Measurement | Prepare a solution of a certain concentration (e.g., 1% aqueous solution), and measure its acidity or basicity with a calibrated pH meter; typically between 4.2 and 4.8. |
| Moisture (Loss on Drying) | Drying Loss Method (Gravimetric Method) | Dry the sample in a 105°C oven until constant weight, calculate moisture content based on weight loss; moisture content should be ≤0.2% for anhydrous products. |
| Chloride | Silver Nitrate Turbidimetry | Add silver nitrate after acidification; chloride reacts to form a white turbidity, which is compared with a standard chloride solution for quantitative determination. |
| Sulfate | Barium Chloride Turbidimetry | Add barium chloride in a hydrochloric acid medium to produce a white precipitate of barium sulfate, compare with a standard sulfate solution for determination. |
| Heavy Metals | Sulfide Colorimetric Method (e.g., Lead) | Under weak acidic conditions, heavy metals react with hydrogen sulfide to form colored precipitates, which are compared with a standard lead solution for limit detection (usually ≤10 ppm). |
| Arsenic Content | Gutzeit Method or Hydride Generation - Atomic Absorption Spectrometry | Gutzeit method: Arsenic hydride reacts with mercuric bromide paper to produce a color change; modern methods often use hydride generation - atomic absorption/flame spectrometry, offering higher sensitivity. |
| Iron Content | Thiocyanate Colorimetric Method | Iron ions react with ammonium thiocyanate to form a red complex, which is measured by colorimetry; alternatively, atomic absorption spectrometry (AAS) or ICP-MS can be used. |
| Ignition Residue | Gravimetric Method | Heat the sample at high temperature, weigh the residue, and calculate the total amount of non-volatile inorganic impurities, reflecting the level of inorganic impurities. |
| Particle Size Distribution | Laser Particle Size Analysis or Sieving Method | Measure particle size distribution using laser scattering principles; or use standard sieves for mechanical sieving, suitable for industrial product control. |
Technical Specifications of PHOSPHATE STANDARD
| Test Item | Specification |
|---|---|
| Appearance | White crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=20 ppm |
| Total Impurities | <=1.5% |
| Solubility | Freely soluble in water; insoluble in ethanol |
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 PHOSPHATE STANDARD
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of PHOSPHATE STANDARD
Industrial PHOSPHATE STANDARD 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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