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This product is insensitive to light, temperature, and pH, and requires a pH value of 5.0~8.0 for the final product; To avoid introducing trivalent iron ions into the system, chelating agents such as EDTA can be added during use; This product is difficult to prepare and can easily precipitate crystals when used. To solve this problem, it is recommended to use isopropyl palmitate or isopropyl coumarinate, mix and dissolve them by heating, and then add them to the oil phase. Inner packaging: Aluminum foil bag, lined with plastic bag vacuum packaging, 1 gram per bag. Plastic bags, 25 grams per bag.
Item |
Specification |
Appearance Property |
White or almost white crystal powder |
Assay |
≥98.00% |
Melting Point |
92.0~96.0 ℃ |
Loss on Drying |
≤0.5% |
Residue on Ignition |
≤0.5% |
Heavy Metals (Pb) |
≤10ppm |
Arsenic |
≤2ppm |
Color Reaction ofFerric Chloride |
Negative |
Microbiological Test |
Bacteria: ≤ 300 CFU/g Fungus:≤ 100 CFU/g |