Aluminium Sulphate (Alum)

 

Product description:

Molecular Formula: AL2(SO4)3

Appearance: Aluminium Sulphate is white or grey flake,particle or massive crystallization.

Properties: Including anhydrous and hydrous(18 crystal water) type. Usually, the crystal separated out from aqueous solution at the normal temperature is Al 2 (SO 4 ) 3.18H 2 O; When weathering, the average molecular structure is Al 2 (SO 4 ) 3.14H 2 O, may appear white powdery, with bright flake or crystalline flakelet, odorless, to change the taste from sweetness to slight astringency.

Applications:

1) Water effluent treatment system
It's used for purification of drinking water and wastewater treatment by settling of impurities by means of precipitation and flocculation.

2) Paper Industry

It helps in sizing of paper at neutral and alkaline pH, thus improving paper quality (reducing spots and holes and improving sheet formation and strength) and sizing efficiency.

3) Textile Industry 

It is used for color fixing in Naphthol based dyes for cotton fabric.

4) Other Uses

Leather tanning, lubricating compositions, fire retardants; decolorizing agent in petroleum, deodorizer; food additive; firming agent; dyeing mordant; foaming agent in firefighting foams; fireproofing cloth; catalyst; pH control; waterproofing concrete; aluminum compounds, zeolites etc.

Specification:

Standard: HG/T 2225-2001 and HG/T 2227-2004

Items	Specifications
	I Type:Low Ferrous/Low Iron		II Type:Non-Ferrous/Iron-free
	First Class	Qualified	First Class	Qualified
Al2O3 % ≥	15.8	15.6	17	16
Ferrous(Fe )% ≤	0.5	0.7	0.005	0.01
Water Insolube % ≤	0.1	0.15	0.1	0.15
PH (1% aqueous solution) ≥	3.0	3.0	3.0	3.0
Arsenic(As) %≤			0.0005	0.0005
Heavy metal (Pb) %≤			0.002	0.002

Package: 

25/50 kgs in net bag, 25 mts in the 20'FCL

Delivery Time: 

Within 15 days