Customization: | Available |
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CAS No.: | 7772-98-7/10102-17-7 |
Formula: | Na2s2o3 |
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Sodium thiosulfate, also known as sodium sulfite baking soda sea wave, is a common thiosulfate. The chemical formula is Na2S2O3. It is the product of replacing an oxygen atom with a sulfur atom in sodium sulfate, so the oxidation number of the two sulfur atoms is -2 and +6 respectively
COA is an important document to prove product accountability. It reflects whether the quality of the tested substance meets the specified standards. It is not important for ensuring product quality and improving product competitiveness.
The COA we provide are all the results of the factory's strict inspection, please rest assured for reference;
TEST ITEMS | SPECIFICATION | RESULT OF TEST REPORT |
ASSAY: | 99.00% MIN | 99.54% |
WATER INSOLUBLES: | 0.01% MAX | 0.007% |
SULPHIDES: | 0.001% MAX | 0.0008% |
Fe: | 0.001% MAX | 0.0005% |
S | 0.001% MAX | 0.0007% |
ITEMS | STANDARD | TEST RESULT |
Appearance | White powder crystal | Pass |
Purity (%) | 97.0min | 98.03% |
Insoluble substance in water(%) | 0.01%max |
PASS |
Sulphide(%) | 0.001%max | PASS |
Fe(%) | 0.005%max | 0.0007% |
PH | 6.5~9.5 | 8.1 |
Particle size(mesh) | 20-80 | PASS |
PACKAGE:25kg pp bag or as requirement
Textile printing and dyeing industry
water treatment agents
tannery industry
photographic fixing agent plating and mineral processing and other industries.
Fondland Chemicals Co., Ltd (hereafter referred as FONDLAND) established in 2010, is the leading manufacturer and supplier of Chemicals. FONDLAND founded relying on Shandong Haihua Group with strongest supplying capability and competitive price. Our products were sold to most of the world, including Middle East, Africa, Southeast Asia, North America, South America, Caribbean , Europe etc.
Our mainly products:Sodium carbonate,Sodium bicarbonate,Ammonium bicarbonate,Aluminum sulfate,Calcium chloride,Magnesium chloride,Sodium metabisulfite,Sodium nitrite, Potassium sulfate,Poly aluminium chloride ,Caustic soda ,Phosphoric Acid ,Acetic acid and so on.We have the warehouses for storage and have a team of skilled persons for the warehouse operation.
Traffic advantage
Da lai long Railway is straight through the plant; National Highway No.206.and 309,Wei lai Expressway and Jiqing Expressway is adjacent to the factory and run through the surrounding areas
Port advantage
weifang Yangzi port, longkou port and Qingdao port are available for the transportation of raw- material and the exportation of finished products
Best Quality
1.Strict quality control system and rigorous QHSE
2.Professional quality control team
3.Specifications testing from raw material to finished product
4.Supervision on container loading and delivery to ensure the cleanliness and neatness of package
Prompt Delivery
1.Sufficient supply capacity
2.After accumulation of 10years,choose shipping lines with more competitive price,better service and shorter lead time
3.Consistently develop on bulk carrier and air transportation to satisfy customer's demand
Competitive Price
1.Professional sourcing team
2.Close cooperation relationship with TOP5 suppliers in the industry for 10years
3.Stable and plenty of shipment to guarantee more competitive sea freights from shipping lines
Professional Service
1.24-hour on line for consulting
2.Professional technical supports and services
3.Provide one-stop procurement solution and optimized delivery plan
To keep the packing bag clean,we load the container in our factory with special platform
1. Q: Are you manufacturer or trading company?
A: We are trading company but we have shares in several cooperated factories.
2. Q: What would you do to guarantee the product quality?
A: We have professional quality control team with strict quality control system and rigorous QHSE.
We give supervision on container loading and delivery to ensure the clearness and neatness of package.
3. Q: What about your price?
A: We always supply the products with appropriate price,because we believe this is an effective way to build
long - term business with our customers and earn good reputation.
4. Q: What payment terms do you accept?
A: For new customers, we accept 30% T/T in advance,70% balance against copy of shipping docs,L/C at sight;
For old customers, the payment terms can be negotiated accordingly.
5. Q: What about the order lead time?
A: Usually the order lead time is 10-15days after receiving your prepayment.