Aluminium Sulphate (Non Ferric)
Non-Ferric Alum is a high-purity, low-iron form of aluminium sulphate, typically appearing as a white or near-white crystalline solid. It is favored for applications where clarity, whiteness, or color precision is critical—such as drinking water purification, white paper production, cosmetics, and high-end textiles. Unlike ferric alum, it does not impart a yellow or brown tint, making it ideal for color-sensitive processes. Supplied in powder, granule, or slab form, it offers excellent solubility and fast reactivity.
Synonyms
Aluminium Sulphate (Non-Ferric) ; Non-Ferric Alum ; Aluminum trisulfate ; Alum (High Purity / White Alum) ; Non-Ferric Alum Cake / Powder ; Drinking Water Grade Alum ; Aluminium Sulphate
Formula
Al₂(SO₄)₃
CAS No
10043-01-3
HS Code:
28332200
Industries Served
- Water Treatment Industry
- Paper & Pulp Industry
- Textile Industry
- Cosmetic & Pharmaceutical Industry
- Leather Industry
- Fire Retardant Formulations
- Ceramics & Dye Intermediates
Applications
- Acts as a primary coagulant to remove suspended solids and microorganisms.
- Preferred for potable water due to its low iron content, which ensures color-free and clear treated water.
- Improves paper sizing and ink absorbency.
- Prevents pitch deposits and enhances filler retention.
- Used as a mordant to enhance dye bonding to natural fibers.
- Ideal where bright and pure dye shades are required without iron interference.
- Helps in deliming hides and softening leather during tanning without darkening the leather.
- Used in deodorants, aftershaves, and topical antiseptics.
- Also found in veterinary products and tablets as astringents and clarifiers.
- Applied in chemical analysis and sample preparation, especially where iron contamination must be avoided.
