Zibo Dingqi Chemicals Co., Ltd. is one of the most experienced manufacturers and suppliers of low iron aluminum sulfate in China. Welcome to wholesale high quality low iron aluminum sulfate made in China here from our factory. For price consultation, contact us.
Product Overview
Low Iron Aluminum Sulfate is an aluminum sulfate formulation produced with strict control over iron impurities. It is utilized in industrial processes and water treatment operations where trace iron levels can impact product color, equipment compatibility, or finished-material quality.
Common industrial synonyms include low iron alum, non-ferric aluminum sulfate, and iron-free aluminum sulfate. Procurement evaluation should focus on verified chemical composition, iron limits, and batch consistency rather than commercial naming conventions.
Technical Specification Framework
|
Parameter |
Technical Description |
Evaluation Focus |
|
Product Name |
Low Iron Aluminum Sulfate |
Commercial identification |
|
Chemical Formula |
Al2(SO4)3 * xH2O |
Hydration state subject to grade specification |
|
Iron Content (Fe) |
Controlled threshold limit |
Primary purchasing differentiator |
|
Aluminum Oxide (Al2O3) |
Active coagulant component |
Determines effective chemical dosage |
|
Water-Insoluble Matter |
Residue control limit |
Impacts dissolution clarity and filter clogging |
|
Physical Form |
Flake, powder, or granular |
Selected based on handling and dissolution systems |
|
Moisture Content |
Controlled weight percentage |
Affects caking resistance and storage stability |
|
pH Value (5% Solution) |
Measured in aqueous solution |
Evaluates process compatibility |
Industrial Applications and Process Integration
Water Treatment Operations
Low Iron Aluminum Sulfate functions as an effective aluminum-based coagulant in municipal and industrial water treatment plants. Hydrolysis in aqueous systems destabilizes suspended colloidal particles, facilitating flocculation and clarification.
Process Variables: Actual treatment performance relies on raw water chemistry, pH levels, alkalinity, temperature, and mixing dynamics.
Evaluation Method: Jar testing is recommended prior to bulk system transition to determine optimal dosing rates and verify turbidity reduction.
Pulp and Paper Manufacturing
Selected paper grades utilize low-iron aluminum derivatives in wet-end chemistry to minimize color interference and maintain target brightness levels.
Process Variables: Iron impurities in papermaking chemicals can cause unwanted yellowing or interact negatively with optical brightening agents.
Evaluation Method: Mill-scale trial runs help confirm compatibility with existing sizing agents and fiber retention systems.
General Chemical Processing
Applied across specialized manufacturing environments requiring controlled heavy metal impurities. This grade should not be assumed suitable for food, pharmaceutical, or cosmetic applications unless verified against specific regulatory compliance documentation.
Dissolution and Dosing Guidance
Proper preparation ensures efficient chemical performance and prevents equipment scaling:
Dissolution Equipment: Dissolve the product in clean water using dedicated agitation tanks. Mechanical mixers accelerate dissolution rates.
Tank Material: Storage and preparation tanks should be constructed from corrosion-resistant materials such as fiberglass-reinforced plastic (FRP), polyethylene, or rubber-lined steel.
Dosing Control: Feed solutions should be metered accurately using chemical dosing pumps matched to system flow rates and water quality demands.
Packaging, Storage, and Safety Handling
Proper containment preserves product integrity and prevents moisture absorption during international transit.
Packaging Formats: Available in woven polypropylene bags with inner liners (25 kg or 50 kg) and heavy-duty flexible intermediate bulk containers (jumbo bags), subject to verification.
Storage Requirements: Store in dry, well-ventilated, and covered storage areas. Keep packaging tightly sealed to prevent moisture-induced caking.
Handling Precautions: Use appropriate personal protective equipment (PPE) including eye protection, chemical-resistant gloves, and dust masks during handling and dissolution. Refer to the product Safety Data Sheet (SDS) for complete safety instructions.
Quality Control and Technical Documentation
Industrial procurement requires complete verification documentation to support incoming quality control (IQC):
Technical Data Sheet (TDS): Outlines typical chemical properties and physical characteristics.
Safety Data Sheet (SDS): Details chemical hazards, emergency response, and safe handling procedures.
Certificate of Analysis (COA): Provided per production batch, verifying actual measured values for iron content, active Al2O3, insoluble matter, and pH against agreed specifications.
FAQ
Q: Can Low Iron Aluminum Sulfate completely replace standard aluminum sulfate in all water treatment plants?
A: No. It should be selected based on specific water quality requirements or finished-product standards where trace iron impurities need to be strictly controlled. For standard municipal wastewater treatment where color sensitivity is low, standard grades are often economically preferred.
Q: What is the typical shelf life of solid low-iron aluminum sulfate under proper storage conditions?
A: When stored in sealed, moisture-proof packaging within a cool and dry environment, the product typically maintains its chemical stability for up to 12 months. Prolonged exposure to high humidity can cause caking, though chemical effectiveness remains largely unaffected once dissolved.
Q: How are bulk orders shipped for international delivery?
A: Shipments are typically organized via container loads (FCL) in standard 20-foot containers. Palletized options, stretch-wrapped configurations, and container liner bags can be arranged depending on port requirements and customer unloading capabilities.
Q: Can custom particle sizes or specific dissolution rates be requested for specialized industrial applications?
A: Yes. Depending on production schedules and technical feasibility, particle size ranges for ground or crushed forms can be adjusted to meet specific mixing and dissolution timeframes required by industrial end-users.
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