Dierbiumtrisulfate octahydrate
- Số CAS
- 10031-52-4
- Khối lượng phân tử
- 766.83
- Công thức phân tử / ký hiệu hóa học
- Er2(SO4)3. 8H2O
Mô tả
Appearance:Pink monoclinic crystal
solubility: insoluble in alcohol, slightly soluble in water and acid.
ỨNG DỤNG
Laboratory reagent, organic intermediates, fine chemicals, catalytic agent, biological medicine, etc.
Keywords:Biological medicine food
Phiếu kiểm nghiệm
|
test item |
test result |
|
Assay |
≥99.0% |
|
25 ℃ 5% solution of pH value |
pH 5.0-8.0 |
|
chloride(Cl) |
≤5ppm |
|
Insoluble matter |
≤0.01% |
|
calcium(Ca) |
≤0.05% |
|
potassium(K) |
≤0.005% |
|
sodium(Na) |
≤0.005% |
|
strontium(Sr) |
≤0.1% |
|
Heavy metal (Pb meter) |
≤5ppm |
|
Ferrum(Fe) |
≤2ppm |