Zibo Dingqi Chemicals Co., Ltd. is one of the most experienced manufacturers and suppliers of liquid aluminum sulfate in China. Welcome to wholesale high quality liquid aluminum sulfate made in China here from our factory. For price consultation, contact us.
Basic Characteristics
Chemical Composition
- Formula: Al2(SO4)3Al2(SO4)3 (anhydrous) or Al2(SO4)3⋅18H2OAl2(SO4)3⋅18H2O (octadecahydrate).
- Liquid form: Typically an aqueous solution with a broad concentration range. Industrial-grade solutions commonly contain 7-8% Al2O3Al2O3.
Physical Properties
- Appearance: Colorless to pale yellow/green liquid (color attributed to impurities such as iron ions).
- Solubility: Highly soluble in water, with solubility increasing with temperature.
- pH: Acidic (1-3% solution has a pH of ~2.0–4.0).
- Density: Concentration-dependent; e.g., 20% solution has a density of ~1.2–1.3 g/cm³.
Chemical Properties
- Hydrolysis: Generates Al(OH)3Al(OH)3 colloids with strong adsorption capacity, widely used in water purification.
- Acidic Reaction: Reacts with bases to form sulfates and Al(OH)3Al(OH)3 precipitates.
- Thermal Stability: Decomposes at high temperatures into Al2O3Al2O3, SO3SO3, and other products.
Primary Applications
Water Treatment
- Coagulant: Removes suspended solids, colloids, and organic matter in municipal and industrial wastewater.
Paper Industry
- Sizing Agent: Enhances water resistance, paper strength, and printability.
Textile Dyeing
- Mordant: Fixes dyes to improve colorfastness and uniformity.
Firefighting and Chemical Industry
- Fire Retardant: Used in foam-based fire suppression systems.
- Raw Material: Production of alum, catalysts (e.g., ammonia synthesis), and titanium dioxide manufacturing.
Other Fields
- Soil pH adjustment, pharmaceutical excipients (as an astringent), etc.
Content and Specifications
Industrial-Grade vs. Food-Grade
- Industrial-Grade: Contains ~7-8% Al2O3Al2O3, with trace heavy metals (e.g., iron ≤0.5%).
- Potable Water Grade: Higher purity with strict limits on heavy metals (e.g., arsenic ≤0.0005%).
Concentration Ranges
- Liquid Products: Typically 6–12% Al2O3Al2O3, with high-concentration solutions up to 17%.
- Solid Products: Higher Al2O3Al2O3 content (e.g., octadecahydrate contains ~17% Al2O3Al2O3).
Application-Specific Dosage
- Water Treatment: Dosage ranges from 5–100 mg/L, adjusted based on water quality.
- Paper Sizing: ~1–3% relative to pulp mass.
Safety and Storage
- Toxicity: Low toxicity, but concentrated solutions may irritate skin/mucous membranes; PPE required.
- Storage: Store in sealed containers away from light and alkaline substances. Freeze protection is critical (crystallization risk at low temperatures).
Key Considerations
- Incompatibility: Mixing with alkaline substances may precipitate Al(OH)3Al(OH)3; dosing sequence must be controlled (e.g., add aluminum sulfate before pH adjustment).
- Crystallization: Prolonged storage may cause crystal formation; reheating can redissolve solids.
- Summary: Liquid aluminum sulfate is a versatile compound with critical roles in water treatment, manufacturing, and environmental management. Optimal performance requires tailored concentration control and adherence to safety protocols.
Hot Tags: liquid aluminum sulfate, China liquid aluminum sulfate manufacturers, suppliers, factory, in printing industry aluminum sulfate, used in coating aluminum sulfate, aluminum sulfate for testing, commercial application aluminum sulfate, aluminum sulfate for global market, pharmaceutical chemical aluminum sulfate
