Aluminum Potassium Sulfate(potassium alum/potash alum)
Formula：KAl(SO4)2•12H2O
Relative Molecular Weight：474.39
CAS NO,: 7784-24-9
EINECS No.:5637-689-7
HS CODE.: 2833301000
Appearance: lump, white crystal, white powder
Properties：Colorless, transparent, particle or crystalline powder, odorless, nontoxic, tastes slightly sweet and puckery, astringent, easily soluble in water, its water solution appears acid,is would lose crystal water and become white powder on heating
Application：
1)Food industry: food fermentation, vermicelli processing, salted aquatic products,
food preservative and additive.
2)Chemical Industry: Water Flocculant, sizing of paper, Painting and dyeing of coating, drug, making of paint and leather, coagulant, processing of fiber board and rubber processing, Seed disinfection.
Packaging：PP/PE 50kg/bag;25kg/bag; 25-27MT /20'FCL container.
Storage：shady, cool and ventilated environment
Ammonium Aluminum Sulfate(Ammonium alum)
Formula：NH4Al(SO4)2•12H2O
Relative Molecular Weight：453.08
CAS NO,: 77784-26-1
HS CODE.: 2833309000
Appearance: lump, white crystal, white powder
Properties：colorless & transparent or semitransparent lump or powder.
Application：
1)Food industry: Buffering agents and leavening agents in food-grade products.
2)Chemical Industry: Water Flocculant, aluminum tanning agents and after-treating agents for leather tanning in the leather industry, dyeing agents,Astringents,mordants etc.
Standard No. of Potassium alum：GB1895-2004
| Project name | Standard indicators | Test results |
| Potassium aluminum sulfate [KAl (SO4) 2.12 H2O] content | ≥99.2% | 99.50% |
| Heavy metals(as Pb>) content | ≤0.002% | <0.002% |
| Water Insoluble Matter | ≤0.2% | 0.1% |
| Lead (Pb) content | ≤0.001% | 0.0003% |
| Arsenic (As) content | ≤0.0002% | <0.0002% |
| Fluorine (F) content | ≤0.003% | <0.003% |
| Ammonium | Compliance testing | Compliance testing |
| Moisture content | ≤1.0% | 0.80% |
Standard No. of Ammonium Alum：GB25592-2010
|
Project name |
Standard indicators |
Lotus alum Test results |
|
Aluminium ammonium sulfate [NH4Al (SO4) 2.12 H2O]content |
≥99.5%-100.5% |
99.7% |
|
Heavy metals (as Pb) content |
≤0.002% |
<0.002% |
|
Water Insoluble Matter |
≤0.2％ |
0.1% |
|
Plumbum(Pb) content |
≤0.001% |
0.0003% |
|
Arsenic (As) content |
≤0.0002% |
<0.0001% |
|
Fluorine (F) content |
≤0.003% |
<0.003% |
|
Selenium (Se) content |
≤0.003% |
<0.003% |
|
Moisture content |
≤4.0% |
2.5% |