Aluminium Sulphate
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Aluminium Sulphate is a white crystalline solid commonly used in water purification, paper manufacturing, and as a mordant in dyeing and printing textiles. It acts as a coagulant in water treatment,…
CAS Number
10043-01-3
HS Code
28.33.22.00
INCI Name
Aluminium Sulphate
Molecular Formula
Al2(SO4)3
Aluminium Sulphate
ELRASATM – ASExW
Aluminium Sulphate is a white crystalline solid commonly used in water purification, paper manufacturing, and as a mordant in dyeing and printing textiles. It acts as a coagulant in water treatment, helping to remove impurities by causing them to clump together and settle out of…
CAS Number
10043-01-3
INCI Name
Aluminium Sulphate
HS Code
28.33.22.00
Molecular Formula
Al2(SO4)3
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Product Specification
Physical Properties
| Property | Specification |
|---|---|
| Appearance | White crystalline solid |
| Odor | Odorless |
| Molecular Weight | 342.15 g/mol |
| Density | 2.71 g/cm³ |
| Specific Gravity | 2.71 (water = 1) |
| Refractive Index | 1.47 |
| Ph (Aqueous Solution) | ≥ 2.9 (5% solution) |
| Assay / Purity | Water-soluble aluminium of not less than 9.0% w/w as Al or 17.0% w/w as Al₂O₃ |
Chemical Properties
| Property | Specification |
|---|---|
| Ionic Nature | Ionic salt. Dissociates in water to form aluminum ions (Al³⁺) and sulfate ions (SO₄²⁻). |
| Incompatibilities | Water/moisture, strong bases (e.g., sodium hydroxide), strong oxidizing agents, ammonia, amines, and many metals in the presence of water. |
| Hazardous Reactions / Decomposition Products | Decomposes on heating (above 770 °C) to produce toxic and corrosive fumes of sulfur oxides (sulfur trioxide, sulfur dioxide) and aluminum oxide. Reacts with water to form a dilute sulfuric acid solution. |
Thermal Properties
| Property | Specification |
|---|---|
| Melting Point | 770 °C (decomposes) |
| Boiling Point | Decomposes |
| Flash Point | Non-combustible / Non-flammable |
| Decomposition Temperature | Begins to lose crystal water at 250 °C; decomposes to γ-alumina and sulfur trioxide between 580 and 900 °C. |
| Thermal Stability | Stable under normal temperatures and pressures. Hygroscopic; absorbs moisture from the air. |
Dosing Guidelines
A. Dosing by Application
| Application | Recommended / Max Dosage |
|---|---|
| Drinking Water Treatment (Coagulation) | 5 to 200 mg/L. May be as high as 500 mg/L for highly turbid water. |
| Wastewater Treatment (Coagulation) | 10 - 60 ppm (mg/L). |
| Wastewater Phosphorus Removal | 10 - 30 mg/L. |
| General Impurity Limits (Maximum Dosage Basis) | Maximum dosage of 100 mg/L is used as a basis for calculating impurity limits in drinking water. |
About Aluminium Sulphate
Aluminium Sulphate, also known as alum, is a versatile chemical compound used in various industrial applications. As a leading Aluminium Sulphate manufacturer, we ensure high purity and quality standards to meet the demands of industries such as water treatment, paper manufacturing, and textiles. Our Aluminium Sulphate suppliers focus on sustainable production practices, minimizing environmental impact while delivering effective solutions. In water treatment, Aluminium Sulphate acts as a coagulant, enhancing the removal of impurities and improving water quality. In the paper industry, it improves paper quality and sizing, while in textiles, it serves as a mordant for vibrant and long-lasting colors. Our commitment to quality and sustainability makes us a preferred choice for Aluminium Sulphate in global markets, particularly in North America.
- Effective Coagulant: Enhances water treatment processes by removing impurities and improving water quality.
- Function: Primarily acts as a coagulant, flocculant, and precipitating agent. In cosmetics, it functions as an astringent, antiperspirant, and deodorant.
- High Purity Standards: Ensures optimal performance in industrial applications such as paper manufacturing and textiles.
- Features: High solubility in water, forms an acidic solution. The "Extra White Grade" or iron-free grades are noted for their high purity and low iron content.
- Versatile Applications: Used in water treatment, paper manufacturing, textile dyeing, and as a fire retardant.
- Benefits: Effectively removes impurities and suspended particles from water. In papermaking, it improves water resistance and helps fix dyes. In textiles, it acts as a mordant to bind dyes to fabric for lasting color.
- Sustainable Production: Focus on minimizing environmental impact through eco-friendly manufacturing practices.
- Reliable Supply Chain: Trusted by industries worldwide for consistent quality and supply.
About Aluminium Sulphate
Aluminium Sulphate, also known as alum, is a versatile chemical compound used in various industrial applications. As a leading Aluminium Sulphate manufacturer, we ensure high purity and quality standards to meet the demands of industries such as water treatment, paper manufacturing, and textiles. Our Aluminium Sulphate suppliers focus on sustainable production practices, minimizing environmental impact while delivering effective solutions. In water treatment, Aluminium Sulphate acts as a coagulant, enhancing the removal of impurities and improving water quality. In the paper industry, it improves paper quality and sizing, while in textiles, it serves as a mordant for vibrant and long-lasting colors. Our commitment to quality and sustainability makes us a preferred choice for Aluminium Sulphate in global markets, particularly in North America.
- Effective Coagulant: Enhances water treatment processes by removing impurities and improving water quality.
- Function: Primarily acts as a coagulant, flocculant, and precipitating agent. In cosmetics, it functions as an astringent, antiperspirant, and deodorant.
- High Purity Standards: Ensures optimal performance in industrial applications such as paper manufacturing and textiles.
- Features: High solubility in water, forms an acidic solution. The "Extra White Grade" or iron-free grades are noted for their high purity and low iron content.
- Versatile Applications: Used in water treatment, paper manufacturing, textile dyeing, and as a fire retardant.
- Benefits: Effectively removes impurities and suspended particles from water. In papermaking, it improves water resistance and helps fix dyes. In textiles, it acts as a mordant to bind dyes to fabric for lasting color.
- Sustainable Production: Focus on minimizing environmental impact through eco-friendly manufacturing practices.
- Reliable Supply Chain: Trusted by industries worldwide for consistent quality and supply.
Regulatory Compliance
| Region | Max Allowed Level | Notes | Certification Body |
|---|---|---|---|
| United States | - | Listed by the FDA as "generally recognized as safe" (GRAS). It is listed on the TSCA (Toxic Substances Control Act) inventory. | FDA GRAS Notice, TSCA |
| European Union | - | The substance is registered under REACH. It is classified for causing serious eye damage. | REACH Registration |
| Canada | - | Listed on the Domestic Substances List (DSL). Health Canada considers systemic exposure to be of low concern at current levels. | DSL Listing |
| India | - | No specific restrictions found in the search. It is used in pharmaceuticals. | - |
| Japan | - | Listed on the Inventory of Existing and New Chemical Substances (ENCS). | ENCS Listing |
| Australia | - | Listed on the Australian Inventory of Chemical Substances (AICS). Classified as a severe eye irritant. | AICS Listing |
| China | - | Listed on the Inventory of Existing Chemical Substances in China (IECSC). | IECSC Listing |
| Korea, Republic of | - | Listed on the Korean Existing Chemicals Inventory (KECI). | KECI Listing |
| ASEAN | - | The substance is listed on the Philippines Inventory of Chemicals and Chemical Substances (PICCS). | PICCS Listing |
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