Jiangsu Kolod Food Ingredients Co., Ltd. offers analytical reagent (AR) and chemically pure (CP) grades with defined limits for assay and selected impurities. The product is suitable for laboratory and industrial users who require specified reagent purity and batch-based quality control.
|
Item |
Details |
|
Product Name |
Ammonium Ferric Sulfate |
|
Chemical Name |
Ammonium Iron(III) Sulfate Dodecahydrate |
|
Molecular Formula |
NH₄Fe(SO₄)₂·12H₂O |
|
Molecular Weight |
482.19 g/mol |
|
CAS Number |
7783-83-7 |
|
Appearance |
Crystalline solid |
|
Available Grades |
AR, CP |
|
Reference Standard |
GB/T 1279-2008, as specified for the listed grade |
|
Manufacturer |
Jiangsu Kolod Food Ingredients Co., Ltd. |
|
Origin |
China |
Key Features
Two reagent grades: AR and CP options for different analytical and laboratory requirements.
Defined impurity limits: Specifications cover water-insoluble matter, chloride, nitrate and selected metal impurities.
Batch-oriented quality control: Product quality can be assessed against the applicable specification and batch documentation.
Bulk packaging: Standard 25 kg packaging is suitable for commercial handling and shipment.
B2B supply: Intended for laboratory distributors, chemical traders, research organizations and industrial users.
Technical Specifications
The following table presents the published product specification for AR and CP grades.
|
Parameter |
AR Grade |
CP Grade |
|
Assay, % |
≥99.0 |
≥98.0 |
|
Water-insoluble matter, % |
≤0.005 |
≤0.015 |
|
Chloride (Cl), % |
≤0.0005 |
≤0.005 |
|
Nitrate, % |
≤0.01 |
≤0.02 |
|
Sodium (Na), % |
≤0.01 |
≤0.05 |
|
Magnesium (Mg), % |
≤0.001 |
≤0.05 |
|
Potassium (K), % |
≤0.01 |
≤0.05 |
|
Manganese (Mn), % |
≤0.005 |
- |
|
Ferrous iron (Fe²⁺), % |
≤0.001 |
≤0.005 |
|
Copper (Cu), % |
≤0.002 |
≤0.01 |
|
Zinc (Zn), % |
≤0.003 |
≤0.01 |
|
Lead (Pb), % |
≤0.001 |
- |
Applications
Laboratory Analysis and Reagent Preparation
Used as a chemical reagent in laboratory procedures where ammonium iron(III) sulfate of a specified purity is required.
Chemical Research and Testing
Suitable for research laboratories, analytical testing facilities and chemical process development that require a defined reagent grade.
Educational and Industrial Laboratories
Can be supplied to institutional laboratories, testing organizations and industrial laboratories for appropriate analytical and experimental work.
Textile and Chemical Processing
Ammonium ferric sulfate has uses as a mordant in certain dyeing processes. Suitability should be assessed against the specific formulation and process requirements.
Quality Control and Documentation
Quality Inspection
Key quality parameters include assay, water-insoluble matter, chloride, nitrate, ferrous iron, and selected metal impurities. Results are evaluated against the applicable product specifications.
Testing Methods
Analytical testing is conducted according to applicable specifications and established test methods.
Batch Quality Control
Batch test results are recorded in the Certificate of Analysis (COA) to support quality verification and specification compliance.
Product Documentation
COA (Certificate of Analysis): Batch-specific test results and quality data.
TDS (Technical Data Sheet): Product information and technical specifications.
SDS (Safety Data Sheet): Hazard information, safe handling, storage, and emergency measures.
Packaging and Storage
Standard packaging: 25 kg per bag, with a sealed polyethylene inner bag and a reinforced compound plastic woven outer bag.
Packaging options and palletization requirements should be specified for the intended shipment.
Store in a dry, well-ventilated area in tightly closed packaging. Protect the product from moisture, contamination and unsuitable storage conditions.
Frequently Asked Questions
Q: What is the difference between AR and CP grades?
A: AR (analytical reagent) grade is intended for applications with more stringent analytical purity requirements. CP (chemically pure) grade has different acceptance limits. Compare the individual impurity limits against your test method before selecting a grade.
Q: Can I request a COA for the ordered batch?
A: A batch-specific COA is a standard document to request for reagent procurement. Confirm the applicable test items and document availability when placing the order.
Q: What is the standard packaging size?
A: The standard packaging reference is 25 kg per bag. Confirm any palletization or alternative packaging requirements before shipment.
Q: What is the minimum order quantity?
A: The indicative MOQ for a standard commercial order is 500 kg. For smaller evaluation or laboratory quantities, request a separate quotation.
Q: How long does delivery take?
A: A planning lead time of 15–25 days after order confirmation is used for standard orders. Actual timing depends on grade, quantity, production scheduling and shipping arrangements.
Q: Can you support specific impurity limits or destination-market requirements?
A: Please provide your required specification, analytical method and destination-market requirements. The requested limits and documents should be reviewed against the available product grade before order confirmation.
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