Name | Specifications | Packing | Price | Delivery |
Sodium phosphate monobasic dihydrate | ACS | 500g | RMB 74.8 | Consulting service |
Sodium phosphate monobasic dihydrate | 用于分子生物学, ≥99.0% (T) | 250g | RMB 418 | Consulting service |
Sodium phosphate monobasic dihydrate | AR | 500g | RMB 49.5 | Consulting service |
ACS级
项目名称 ACS Grade
含量(NaH2PO4·2H2O)Assay 98.0-102.0%
pH(5%溶液,25.0℃)
pH of a 5% solution at 25.0℃ 4.1-4.5%
水不溶物Insoluble matter ≤0.01%
氯化物(Cl)Chloride ≤5ppm
硫酸盐(SO4)Sulfate ≤0.003%
钙(Ca)Calcium ≤0.005%
钾(K)Potassium ≤0.01%
重金属(以Pb计)Heavy metals ≤0.001%
铁(Fe)Iron ≤0.001%
品级Grade 分子生物学级
(grade for molecular biology)
含量assay ≥99.0% (T)
DNA酶DNases, none detected
RNA酶RNases, none detected
不溶物insoluble matter, passes filter test
磷酸酶phosphatases, none detected
蛋白酶proteases, none detected
pH 4.0-4.5 (25 °C, 1 M in H2O)
水溶解试验solubility in water 可溶,1 M, 20 °C, clear, colorless
痕量阴离子anion traces
chloride (Cl-): ≤50 ppm
sulfate (SO42-): ≤50 ppm
痕量阳离子cation traces
Al: ≤5 ppm
As: ≤0.2 ppm
Ba: ≤5 ppm
Bi: ≤5 ppm
Ca: ≤10 ppm
Cd: ≤5 ppm
Co: ≤5 ppm
Cr: ≤5 ppm
Cu: ≤5 ppm
Fe: ≤5 ppm
K: ≤200 ppm
Li: ≤5 ppm
Mg: ≤5 ppm
Mn: ≤5 ppm
Mo: ≤5 ppm
Ni: ≤5 ppm
Pb: ≤5 ppm
Sr: ≤5 ppm
Zn: ≤5 ppm
λ 1 M in H2O
紫外吸收UV absorption
λ: 260 nm A: ≤0.085
λ: 280 nm A: ≤0.070
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