1,Chemical Name: Potassium Sulfate
2,Molecular Formula : K
2SO
4
3,Molecular Weight: 174.26
4,CAS: 7778-80-5
5,Character: It occurs as
colorless or white hard crystal or as crystalline powder. It tastes bitter and salty. Relative density is 2.662. 1g dissolves in about 8.5mL of water. It's insoluble in ethanol and acetone. The pH of 5% aqueous solution is about 5.5 to 8.5.
6,Usage: It is used as seasoning and salt substitute.
7,Packing: It is packed with polyethylene bag as inner layer, and a compound plastic woven bag as outer layer. The net weight of each bag is 25kg.
8.Storage and Transport: It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.
SENSE REQUIREMENTS
| INDEX |
TARGET |
METHOD |
RESULTS |
CONCLUSION |
| Color |
White Or Colorless |
Take some sample and put it into a 50ml beaker. Observe the color and appearance under natural light. |
Colorless |
Pass |
| Appearance |
Granules Or Crystalline Powder |
Granules |
Pass |
| ITEM |
INDEX |
RESULT |
TEST STANDARD |
CONCLUSION |
| K2SO4( AS PER SO4) W/% ≥ |
99.0 |
99.28 |
As per customer require |
Pass |
| K2SO4( AS PER K) W/%≥ |
99.0 |
99.25 |
As per customer require |
Pass |
| Moisture w/%≤ |
1.0 |
0.11 |
As per customer require |
Pass |
| Water Insoluble w/%≤ |
0.1 |
0.04 |
As per customer require |
Pass |
| Ph |
6.0-8.0 |
7.25 |
As per customer require |
Pass |
| Magnesium % ≤ |
0.01 |
<0.01 |
As per customer require |
Pass |
| Iron %≤ |
0.001 |
<0.001 |
As per customer require |
Pass |
| Calcium %≤ |
0.03 |
<0.03 |
As per customer require |
Pass |
| Chloride(as potassium chloride w/%≤ |
0.02 |
<0.02 |
As per customer require |
Pass |
| Grit |
Pass test |
Pass test |
As per customer require |
Pass |
| Mesh size |
100% pass through US Sieve No.50
5% max Retained on US Sieve no.70 |
Pass test |
As per customer require |
Pass |
|
Grade: Agriculture & Fertilizer
SOP Specification:
| Items |
Specifications: |
Test Results |
Unit |
| K2O |
50 Min |
50.8 |
% |
| Chloride |
1.5 Max |
1.4 |
% |
| Moisture |
1.5 Max |
0.8 |
% |
| S |
17.0Min |
17.5 |
% |
| Free Acid |
1.5 Max |
1.4 |
% |
| Appearance |
White powder |
| Items |
Specifications: |
Test Results |
Unit |
| K2O |
52 Min |
52.7 |
% |
| Chloride |
1.5 Max |
1.4 |
% |
| Moisture |
1.5 Max |
0.5 |
% |
| S |
17.5 Min |
18 |
% |
| Free Acid |
3.0 Max |
1.5 |
% |
| Appearance |
White powder |
SOP Packaging:
Package: 9.5/9.9 kg/50Kg/Ton bag per PP bag with PE inner bag.
Delivery : ship by container or bulk vessel.
SOP Application:
1) Used as potassium fertilizer in agriculture.
2) Mainly used as the raw material of Blending NPK.
3) Used as settling agent in glass industry.
4) Used as intermediate in dyeing industry.
5) Used for producing potassium sale, potassium carbonate, potassium persulphate.
Packing&Shipping
FAQ
Q1.What's the payment terms?
We could accept T/T, L/C, DP payment terms.
Q2.How about the different index of products in same application?
Specifications can be customized according to your application.
Q3.How about the samples of products?
We can provide free samples under 2Kg(not including freight charge).
Q4.How about the price of products?
Our products are chemical synthesis got from underground brine, which is available for a variety of usage. Our products are high purity with good quality, and the price is based on different specification and quantity.
Q5.What's the shelf life for the cargoes?
Our product's shelf life is 2 years, which is based on dry and ventilated storage.
Q6.What's the package of the cargoes?
20kg/25kg woven bags, within plastic bags, or as customized.
Q7.What's the delivery time?
We usually deliver the cargoes within 10~20 days after receiving customer's payment or original L/C.
Q8.Which documents can we supply?
Commercial Invoice, Packing List, Certificate of Analysis, Certificate of Origin (FORM E), Bill of Loading, ISO etc.
The documents will be sent by Express within 24 hours against your full payment.
Q9.Why do you choose us?
We accept safe and diversified payment terms.
We supply a price trend to ensure clients know marketing information in time. We will take charge of 100% responsibility for
quality issue. We strive to create value for each customer we serve by meeting their unique needs and providing solutions to solve their problems and achieve their objectives.
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