Product selection support
Discuss water conditions, process position and current products.
Source photograph; appearance, grade and supplied packaging follow the agreed product documents.
Coagulation & flocculation
Aluminium Sulfate
Alum
An aluminium salt option for coagulation and chemical phosphorus removal in raw water and wastewater, supporting clarification and solid–liquid separation.
Confirmed availableBase chemicals
- Chemical identity
- Anhydrous-salt reference CAS 10043-01-3; confirm the hydration state of the commercial product.
- Product form
- Solid; particle form confirmed for the order.
Add application & specification details
Application value
Uses and application conditions
Coagulation, flocculation & clarification; Chemical phosphorus removal & solids separation
Use these checks to compare equivalent supply specifications and narrow the candidate range for your actual process.
Specification & document coordination
Align specification basis, test methods and grade-specific documents.
Packaging & supply coordination
Review quantity, packaging and destination requirements.
Specifications & selection
Specifications and order requirements
Discuss your current grade or operating conditions. ENVO codes identify sales requirements; manufacturer grades, supply specifications, test methods and document versions are confirmed for the selected product.
ENVO-AS-S17Catalogue solid grade
Al2O3 ≥17%; Fe ≤0.005%; insolubles ≤0.1%; pH ≥3.0 (1% aqueous solution).
Application conditions & technical scope
Align the active-component basis for solids, liquids and hydration forms. Consider alkalinity consumption, residual aluminum and sludge separation in use.
Appearance and supplied form
Confirm the form before comparing specifications.
Check the required form, then compare the composition, specifications and test conditions of the specific grade.
Product forms to compare
Flakes / lumps / powder; liquid listed separately
White or colorless to white; liquid depends on grade
Appearance information supports initial screening only. Color cannot establish chemical identity, concentration or quality grade. Confirm the actual batch using supply documents and samples.
Appearance and technical references
These public sources help check product categories, possible appearances and general application limits. They do not replace the TDS, SDS or batch COA for a specific ENVO grade.
- Kemira · Aluminum sulfate dry and liquid
Dry and liquid aluminum sulfate supplied separately
- Chemtrade · Liquid Alum SDS
Liquid aluminum sulfate is a separate supply form
- ENVO Chemical · Aluminium Sulphate ENVO original catalogue
Associates the product page with a historical photograph; does not establish the current batch or the rights chain
Application issues and troubleshooting
Aluminium Sulfate — troubleshooting checks
Review symptoms, possible causes and verification steps together to prepare a more focused product-selection discussion.
01Fine suspended solids or scum remain after aluminum sulfate dosing
- Possible causes
- Changes in water charge, pH/alkalinity, oil/dye type or mixing and separation conditions may make the existing specification unsuitable.
- Investigation and resolution
- Distinguish colloid coagulation, demulsification and flocculation first. Compare the coagulant and supporting PAM using the same water sample, assessing clarification and separation.
- Checks required
- Provide Al₂O₃ content; iron; insoluble matter; pH conditions; hydration state, together with the current product, actual water sample and process location.
- Application limits
- The coagulant name alone cannot establish removal of an oil phase, metal complexes or dissolved COD.
02Sludge or pH changes from aluminum sulfate differ from expectations
- Possible causes
- The active-component basis, acid/alkali demand or jointly used chemicals may have changed; inorganic salts and organic polymers act differently.
- Investigation and resolution
- Use the same active-metal or polymer basis. Record pH, sludge and downstream dewatering, assessing the main chemical and aid separately.
- Checks required
- Incoming-water pH and alkalinity, current chemical documents, process sequence, sludge samples and equipment records.
- Application limits
- Candidate chemicals are not a blend that must all be used together; confirm reaction locations and product compatibility separately.
03Aluminum sulfate appearance or preparation differs from the previous purchase
- Possible causes
- Powder, crystals, liquid, hydration state and formulation can all change appearance and content.
- Investigation and resolution
- Compare the grade label, SDS, actual-form photographs and dissolution tests to distinguish product changes from moisture or oxidation effects.
- Checks required
- Al₂O₃ content; iron; insoluble matter; pH conditions; hydration state; provide the package label, batch, storage time and preparation-water information.
- Application limits
- Color alone cannot establish purity or industrial grade; purchasing and acceptance require the actual grade, supply form and batch documents.
Applications
See where this product fits.
Technical documentation
Get the information your purchasing decision needs.
Technical data sheet
Product properties, test basis and specification details.
Safety data sheet
Composition, handling, storage and transport information.
Certificate of analysis
Batch-specific analytical items and results.
Certification & use documents
Review the scope for the product and destination market.
Packaging & delivery
Reference packaging: 25kg/bag. Actual packaging, labels and filled net weight are subject to the order and delivery documents.
Technical references & scope
Industry references describe general uses. Product specifications, certifications and application results require the corresponding supplier documentation.
More questions, answered.
Aluminium Sulfate: Fine suspended solids or scum remain after aluminum sulfate dosing — what should I check?
Distinguish colloid coagulation, demulsification and flocculation first. Compare the coagulant and supporting PAM using the same water sample, assessing clarification and separation.
What should I compare when buying Aluminium Sulfate?
Share the application, current product, purchase quantity and delivery location to help confirm a suitable specification. Key checks include: Al₂O₃ content; Iron; Insoluble matter; pH conditions; Hydration state. Compare the current grade document and the same test basis before choosing an alternative.
Which documents should accompany a Aluminium Sulfate enquiry?
Request the current grade-specific TDS and product SDS, the COA for the actual supplied batch, and any intended-use documents required for the destination. Share the application, specification, quantity and delivery requirements. Document version, batch coverage and public-release scope are confirmed for the specific request.
ENVO CHEMICAL
Discuss your water treatment needs
Share your application, current product or purchasing requirements to discuss a suitable supply option.