Specifications

1.Ammonium aluminium sulfate
2.Purity 99.3%
3.white crystals
4.CAS:7784-25-0
5.Application:food additive, Industrial gra

                               Ammonium aluminium sulfate

 

 

1. Introduction

 

Ammonium aluminium sulfate, also known as ammonium alum or just alum, is a white crystalline double sulfate usually encountered as the dodecahydrate, formula (NH₄)Al(SO₄)₂·12H₂O. It is used in small amounts in a variety of niche applications. The dodecahydrate occurs naturally as the rare mineral tschermigite .

 

2. Specification

 

 

Item	Index
NH4AL(SO4)2·12H2O,(%)	99.3~100.5
water content,(%)               ≤	4.0
insoluble in water,(%)          ≤	0.20
As,(%)                                 ≤	0.0002
lead(pb),(%)                        ≤	0.002
Pb,(%)                                 ≤	0.0010
F),(%)                                  ≤	0.003
Se,(%)                                  ≤	0.003

 

 

3. Uses

 

(1).It is used in water purification, in vegetable glues, in porcelain cements, in deodorants and in tanning, dyeing and in fireproofing textiles.

 

(2). Ammonium alum is a common ingredient in animal repellant sprays.

 

(3),In industrial,It is used in leather, processing of washing powder, feed processing, pencil production.

 

 

 

4. Packing 

 

25kg or 50kg per bag

 

5. Lead time

 

Within 20 work days after order confirmed and payment arrived.

 

6. Storage

 

 Stored in dry, cool airiness place, far away from heat, avoid nsolation, sign with no moisture and no insolation.