Hóa chất Sodium tungstate dihydrate Merck 1066721000 (Na₂O₄W * 2 H₂O, chai nhựa 1kg ) DEEP52 https://yeuhangduc.vn/
11,204,738₫
Mô tả
CAS #: 10213-10-2
EC number: 236-743-4
Hill Formula: Na₂O₄W * 2 H₂O
Molar Mass: 329.86 g/mol
Assay (thermogravimetric): ≥ 98 %
Identity (x-ray diffraction): passes test
Free alkali (as NaOH): ≤ 0.1 %
Chloride (Cl): ≤ 0.01 %
Sulfate (SO₄): ≤ 0.02 %
Total nitrogen (N): ≤ 0.005 %
Fe (Iron): ≤ 0.002 %
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