Customization: | Available |
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CAS No.: | 7681-57-4 |
Formula: | Na2s2o5 |
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Industry used in printing and dyeing, organic synthesis, printing, leather, pharmaceutical and other departments; In the food processing as preservative, bleach, bulking agent.
Package: 25kg, 50kg, 1000kg, 1250kg, 1350kg
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;
ITEM | SPECIFICATION | TEST RESULT |
Na2S2O5 content : | 96.0%min | 97.1% |
Heavy metals (as Pb) : | 0.001%max | 0.0003% |
Iron (Fe) : | 0.005%max | 0.0032 |
Water insoluble : | 0.05%max | 0.01% |
Sodium Chloride (NaCl): | 0.05% max | 0.05% |
Arsenic (As) : | 0.0002%max | 0.0001% |
PH Value : | 4.2 -4.8 | 4.5 |
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.
Reliable Product Quality
1) Provide product COAQ1: When will my order be shipped?
A: Within 10-15 working days after the payment.
Q2: Can i get some samples?
A: Yes, contact me to know more about sample
Q3: How to confirm the Product Quality before placing orders?
A: Every product is with professional COA. Please be sure about the quality.
If any doubt, sample is available to you to be tested before large quantity order.
Q4: How to start orders or make payments?
A: Payment by T/T, Western Union,Money Gram etc