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| Customization: | Available |
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| CAS No.: | 7772-98-7 |
| Formula: | Na2o3s2 |
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1. It is mainly used as fixing agent in photography industry.
2. It is used as reducing agent of dichromate in tanning, neutralizer of nitrogen-containing tail gas, mordant, bleach of wheat straw and wool, and dechlorination agent in pulp bleaching. It is also used in the manufacture of tetraethyl-lead, dye intermediates and silver extraction from ore.
| Items | Standard | Result |
| Na2S2O3.5H2O % | ≥ 99 | 99.20 |
| Water insoluble % | ≤ 0.03 | 0.02 |
| Na2S % | ≤ 0.003 | 0.001 |
| NaCl % | ≤ 0.20 | 0.11 |
| PH (200g/L) | 6.5 - 9.5 | 8.1 |
| Appearance | White Crystalline | |
Hebei Kenbin Technology Co., Ltd. is a technology innovation enterprise focusing on global operation, committed to providing global customers with diversified, high-quality chemical products. Since its establishment, we have focused on technology as the core, and built an integrated supply chain system covering procurement, sales, and logistics. Our service network covers more than 30 countries and regions in Asia, Europe, America and so on.
At present, we have established strategic cooperation with a number of well-known manufacturers around the world. In the future, Hebei Kenbin Technology Co., Ltd. will continue to deepen the industrial chain layout, empower global intelligent manufacturing with innovation, and help partners win opportunities in the wave of technological innovation.
Q1. Can I have a sample order for your products?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
Q2. What about the lead time?
A: Sample needs 3-5 days; mass production time needs 1-2 weeks.
Q3. Do you have any MOQ limit for order?
A: Low MOQ, 10-100g for sample checking is available.
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.
Q5. How to proceed an order for your products?
A: Firstly, let us know your requirements or application.
Secondly, we quote according to your requirements or our suggestions.
Thirdly customer confirms the samples and places deposit for normal order.
Fourthly We arrange the production.
Q6. Is it OK to print my logo on package?
A: Yes. Please inform us before our production and confirm the design firstly based on our sample.
Q7: Are you trading company or manufacturer?
A: We are chemical factory in China. So, we can provide wholesale price.
Q8: What are your payment terms?
A8: We can accept various payment methods, Western Union, T/T, PayPal, etc.
Q9: Can your company accept the special requirements of customers?
A9: Of course, we can accept technical consultation, custom synthesis of intermediates, etc.
Q10: How about the delivery time?
A10: The delivery time is about 7-20 days after confirming the payment. Delivery times vary from country to country. (excluding Chinese holidays)
Q11: What type of containers do your company's products use?
A11: Our discreet packaging, good airtightness guarantees 100% of your package to pass through customs, generally aluminum foil bags, fluoride bottles, plastic steel drums, plastic drums or according to customer requirements, we will try our best to meet your requirements.
Q12: What is the shipping method?
A12: For small orders, we express by air, such as FedEx, TNT, UPS, DHL, EMS, for large orders, we can ship to the airport by air, and by sea to the seaport. Our deliveries are 100% safe, fast, reliable and discreet.
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