| Customization: | Available |
|---|---|
| Color: | White |
| Appearance: | Powder |
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| Item | Standard |
| Solubility in water | Freely soluble |
| Solubility in ethanol | Slightly soluble |
| Ultraviolet absorption | 227+2nm |
| Test for potassium | Positive |
| Precipitation test | Yellow precipitate |
| Assay (Titration method) | 99.0-101.0% |
| PH (1% solution) | 6.5-7.5 |
| Loss on drying (105 °C,2h) | ≤1.0% (105 °C,2hours) |
| Organic impurities (HPLC) | ≤20 mg/kg |
| Impurity A** | ≤0.125% |
| Impurity B** | ≤20 mg/kg |
| Fluoride | ≤3 mg/kg |
| Heavy Metals | ≤5 mg/kg |
| Lead | ≤1 mg/kg |
| Arsenic | ≤3 mg/kg |
| Selenium | ≤30 mg/kg |
| Hg | ≤0.03 mg/kg |
| Sulfate | ≤0.1% |
| Cadmium | Not found |
| Chrome | Not found |
| Nickel | Not found |
Najin Import and Export (Shandong) Co., Ltd. is a comprehensive, diversified, and comprehensive company with BDO, PEG, PPG, PTMEG, MDI, TDI, PVA, NMP, and polyether polyols, polyester polyols, and polymer polyols as its main industrial chains. We have a professional sales team that has won recognition and praise from the industry with exquisite technology, sound administrative management, and good teamwork. The product is sold to multiple domestic and foreign enterprises.
We always adhere to the principle of "quality first, customer first, and reputation first", and are committed to providing customers with the best products. We will also continue to build a professional chemical product supply chain with the highest quality service, best products, and maximum efforts.
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