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Aluminum sulfate

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Aluminum sulfate

Aluminum sulfate is an inorganic substance with a chemical formula of Al2(SO4)3, a molecular weight of 342.15, and a white crystalline powder).

In the paper industry, it is used as a precipitation agent for rosin gum, wax emulsion and other rubber materials, as a flocculant in water treatment, as a retention agent for foam fire extinguishers, as a raw material for the manufacture of alum and aluminum white, as a raw material for petroleum decolorization, deodorant, and pharmaceuticals. Raw materials, etc., can also manufacture artificial gems and high-grade ammonium alum.

Chemical formula: Al2(SO4)3

Molecular weight: 342.15

CAS number: 10043-01-3

EINECS Accession Number: 233-135-0

Melting point: 770 ℃ (decomposition)

Density: 2.71 g/cm³

Water solubility: soluble in water, acid and alkali, insoluble in alcohol

Appearance: solid aluminum sulfate is white, gray-green or light yellow flake or block solid, liquid aluminum sulfate is light green or light yellow liquid


Mainly used for drinking water and industrial sewage, pulp sizing in paper industry, clarifying agent in oil industry, deodorizing and decolorizing agent in petroleum industry, leather tanning, pigment manufacturing, refractory ingredient demoulding, foam fire extinguishing agent, etc.


Packed in glass fiber latex bags lined with polyethylene plastic bags, plastic woven bags or sacks, each bag with a net weight of 50kg. Water treatment agent aluminum sulfate (solid) is packed in plastic woven bags lined with polyethylene plastic bags. The net weight of each bag is 50kg. The aluminum sulfate solution of water treatment agent is packed in glass fiber reinforced plastic tank truck or plastic barrel, the net weight of each barrel is 25kg or 50kg. It should be stored in a cool, dry and clean warehouse and should be protected from moisture. After being damp, it will deteriorate and become more corrosive, which is easy to damage the packaging (usually, the packaging needs to be changed in half a year). Do not store and transport together with toxic or alkaline substances. Protect from rain, moisture and sunlight during transportation. When loading and unloading, handle with care to prevent the package from breaking. In case of fire, water, sand and various fire extinguishers can be used to put out the fire. Toxicity and Protection: Its dust can irritate the eyes, inflame the cornea, and damage the mucous membranes of the respiratory tract and cause bleeding. Hot solution splashed on skin can cause burns. When operating, wear dust-proof work clothes, protective glasses, rubber gloves, long rubber boots and other labor protection supplies.