產品描述
連二亞硫酸鈉(俗稱保險粉)是白色結晶粉末,具有弱的硫磺氣味。 雖然在真空情況下呈現穩定狀態,但它在熱水和酸性溶液中易分解。
我司憑借先進的技術,產出的保險粉雜質少,濃度高,且穩定不易分解,從而幫助客戶提高染色效率,提供無與倫比的染色質量,并且對于染色人員更加安全健康。
Item | Technical Grade | Food Grade | ||
90% Grade | 88% Grade | 85% Grade | ||
Na2S2O4 | ≥90% | ≥88% | ≥85% | ≥85% |
Iron(Fe) | ≤20ppm | ≤20ppm | ≤20ppm | ≤20ppm |
Zinc(Zn) | ≤1ppm | ≤1ppm | ≤1ppm | ≤1ppm |
EDTA | / | / | / | Qualified |
Arsenic | / | / | / | ≤1ppm |
Other heavy metal(as Pb) | / | / | / | ≤1ppm |
Formate | / | / | / | ≤0.05% |
Solution Appearance | Clear | Clear | Clear | Clear |
Water Insolubles | ≤0.05% | ≤0.05% | ≤0.05% | ≤0.05% |
Shelf Life(months) | 12 | 12 | 12 | 12 |