| Customization: | Available |
|---|---|
| CAS No.: | 7775-14-6 |
| Formula: | Na2s2o4 |
|
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| ITEM | UNIT | STANDARD | STANDARD | STANDARD | STANDARD |
| Sodium Hydrosulphite:Na2S2O4 | % | 74 min | 85 min | 88 min | 90 min |
| Water insoluble | % | 0.1 max | 0.05 max | 0.05 max | 0.05 max |
| Sodium thiosulfate: Na2S2O3 | % | 1.20 max | 1.20 max | 1.0 max | 0.8 max |
| Sodium metabisulfite: Na2S2O5 | % | 5-7 | 5-7 | 5-7 | 5-7 |
| Sodium bisulfite:Na2SO3 | % | 0.5 max | 0.5 max | 0.4 max | 0.3 max |
| Sodium carbonate: Na2CO3 | % | 0.6-7 max | 0.6-7 max | 0.6-7 max | 0.6-7 max |
| Zinc(Zn) | % | 1ppm max | 1ppm max | 1ppm max | 1ppm max |
| Other heavy metal (calculated as Pb) | % | 1ppm max | 1ppm max | 1ppm max | 1ppm max |
| Fe | % | 20ppm max | 20ppm max | 20ppm max | 20ppm max |
Professional supplier of Chinese source since 1998
ISO, CE, GMP, FDA certified Exporting to 60+ Countries Pre-shipment sample. Over 20 Years' Import and Export Experience
TNN was founded in 1998 in Dalian China with headquarter in Dalian, overseas branch offices in the USA, Australia, and Dubai. TNN has three domestic branches in Jilin, Shanghai, and Shenyang. Mix container and professional loading with taking photos off every step. Our own laboratory, pre-shipment sample before shipment, and keep batch samples.
Our Mission: In order to seek wealthy and spiritual life for all TNN members, constantly improving foreign trade services. Striving to promote people's life around the world!
Our Products: Specialize in chemicals, Health & Medicine, Food Additive, fashion accessories, lotion pumps & sprayers, gloves & other epidemic prevention products, and bottle caps supplied to all over the world. TNN will make your life better.
ISO9001: 2015 Company with Perfect Loading: Certified by ISO9001, CE, GMP, FDA, specializing in food, feed additives, APIS, Cosmetics, Medical instruments, chemical raw materials, and more.
Exporting to 60+ Countries: Our products have been sold to clients all over the world, such as Japan, Korea, Mideast, Middle Asia, Europe, Africa, India, South America, keeping a cooperative relationship with 60+ countries. We are firmly committed to our mission of creating a global trade network on supply, sales, and service.
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