SWASTIK CHEMICALS
Ferric Alum

Ferric Alum

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We are one of the renowned suppliers of Ferric Alum from India. The Alum Crystal made available by us is procured from reputed manufactures and vendors ensuring all the basic chemical and physical properties. It contains balanced amount of Ferric and Non-Ferric Hydrate Lime content, which makes it exceptional in performance and quality. You can easily avail our Alum Crystal at affordable prices.

We are the manufacturers of ferric alum in two grades 1. Ferric alum grade i as per bis 299/1989 al2o3 16% insoluble 0. 5% max iron as Fe 0. 5% max 2. Ferric alum grade ii as per bis 299/1989 al2o3 15% insoluble 2% max, iron as Fe 0. 5% max above those products will be supplied in slabs, lumps and powder forms as per client’s requirement.

Uses:-

  • Ferric alum imparts better brightness to paper when used with rosin for sizing

  • It forms a complex resinate that spreads evenly over the surface of paper

  • It finds other uses in pharmaceutical and mordanting industry. In water purification the highly positively charged aluminum precipitates negative suspensions as sludge

Specification:-

IS 299:2012

Table 1 Requirement for Alumino –Ferric

SI No.
Characteristic
Requirement
Method of Test, Ref to Clause
Grade 1
Grade 2
Grade 3
Grade 4
Grade 5
1
Insoluble matter, percent by mass, Max
0.5 0.5 0.25
0.2
0.1
A-3
2
Soluble iron compound (as Fe), percent by mass, Max
0.7
0.7
0.35
0.04
0.02
A-4
3
Water soluble aluminum compound (as AL2O3) Percent by mass min
16
15
7.5
16
8
A-5
4
pH (of 5 percent aqueous solution), Min
2.7
2.7 2.7
2.7
2.7
A-6
5
Free acidity (as H2SO4) Basicity (as Al2O3 Percent by mass Mass
0.5
0.5
0.25
0.5
0.25
A-7
6
Lead (as PB)parts per million, Max
--
--
--
20
10
A-8
7
Arsenic (as AS2O3) part per million, Max
--
--
--
4
2
A-9
8
Mercury (asHG) part per million, Max
--
--
--
0.4
0.2
A-10
9
Chromium (asCr) part per million, Max
--
--
--
20
10
A-11
10
Manganese (as MN) part per million, Max
--
--
--
20
10
A-12
11
Cadmium (CD) part per million, Max
--
--
--
4
2
A-13
12
Selenium (as Se) parts per million, Max
--
--
--
4
2
A-14
13
Organic impurities:
a) Phenolic Compound (asC4H5OH) parts per million, Max
b) Amionic detergent (as MBAS) parts per million

--
--

--
--

--
--

0.4
80

0.2
40

A-15
A-16