品名 | 规格 | 包装 | 单价 | 货期 |
硫酸铵 | 100g | 528元 | 现货 | |
硫酸铵 | AR | 500g | 44元 | |
硫酸铵 | CP | 500g | 33元 | |
硫酸铵 | GR,≥99.5% (T) | 500g | 44元 | 促销 |
硫酸铵 | ACS | 500g | 66元 | 现货 |
硫酸铵 | GR | 25kg | 1628元 | 现货 |
硫酸铵 | 用于分子生物学, ≥99.0% | 100g | 121元 | 现货 |
硫酸铵 | 用于分子生物学, ≥99.0% | 500g | 429元 | 现货 |
硫酸铵 | 用于分子生物学, ≥99.0% | 5kg | 3267元 | 现货 |
硫酸铵 | 用于植物细胞培养, ≥99.0% | 500g | 649元 | 现货 |
硫酸铵 | ≥99.99% metals basis | 100g | 319元 | 现货 |
硫酸铵 | ≥99.99% metals basis | 25g | 88元 | 现货 |
硫酸铵 | ≥99.99% metals basis | 500g | 1408元 | 现货 |
硫酸铵 | ≥99.999% metals basis | 10g | 132元 | 现货 |
硫酸铵 | ≥99.999% metals basis | 50g | 539元 | 现货 |
硫酸铵 | ≥99.999% metals basis | 250g | 2189元 | 现货 |
品级Grade 优级纯
(GR)
含量assay ≥99.5% (T)
不溶物insoluble matter, passes filter test
灼烧残渣Residue on ignition ≤0.01% (as SO4)
干燥失重loss on drying ≤0.1% , 110 °C
pH 5.0-6.0 (25 °C, 1 M in H2O)
水溶性solubility H2O: soluble1 M at 20 °C, clear, colorless
氯chloride (Cl-): ≤5 ppm
硝酸根nitrate (NO3-): ≤10 ppm
硫酸根phosphate (PO43-): ≤5 ppm
阳离子cation traces
Al: ≤5 ppm
As: ≤0.2 ppm
Ba: ≤5 ppm
Bi: ≤5 ppm
Ca: ≤10 ppm
Cd: ≤1 ppm
Co: ≤5 ppm
Cr: ≤5 ppm
Cu: ≤2 ppm
Fe: ≤2 ppm
K: ≤50 ppm
Li: ≤5 ppm
Mg: ≤5 ppm
Mn: ≤5 ppm
Mo: ≤5 ppm
Na: ≤50 ppm
Ni: ≤5 ppm
Pb: ≤2 ppm
Sr: ≤5 ppm
Zn: ≤1 ppm
λ 1 M in H2O
UV absorption
λ: 260 nm A: ≤0.037
λ: 280 nm A: ≤0.030
ACS级
项目名称Item ACS Grade
含量Assay ≥99.0%
pH(5%溶液,25.0℃)pH 5.0-6.0
不溶物Insoluble matter ≤0.005
灼烧残渣Residue after ignition ≤0.005%
氯化物(Cl)Chloride(Cl) ≤5ppm
硝酸盐(NO3)Nitrate ≤0.001%
磷酸盐(PO4)Phosphate ≤5ppm
重金属(以Pb计)Heavy metals(as Pb) ≤5ppm
铁(Fe)Iron(Fe) ≤5ppm
品级Grade 用于分子生物学
(for molecular biology, ≥99.0%)
外观Appearance 白色粉末
红外光谱鉴别Infrared spectrometry Conforms
含量assay ≥99.0%(中和滴定)
水溶解试验solubility in water CLEAR ,2G/3ML WATER
不溶物Insoluble matter ≤0.005%
氯chloride (Cl-): ≤5 ppm
铜Cu: ≤5 ppm
铁Fe: ≤5 ppm
锌Zn: ≤5 ppm
重金属heavy metals (as Pb): ≤2 ppm
UV ABSORBANCE,1 M SOLUTION
A1M/260 ≤0.03
A1M/280 ≤0.025
DNase, RNase, and protease none detected
品级Grade 用于植物细胞培养
(plant cell culture tested, ≥99.0%)
外观Appearance 白色粉末
红外光谱鉴别Infrared spectrometry Conforms
含量assay ≥99.0%(中和滴定)
水溶解试验solubility in water CLEAR ,2G/3ML WATER
不溶物Insoluble matter ≤0.005%
氯chloride (Cl-): ≤5 ppm
铜Cu: ≤5 ppm
铁Fe: ≤5 ppm
锌Zn: ≤5 ppm
重金属heavy metals (as Pb): ≤2 ppm
植物细胞培养Plant cell culture test PASSES
≥99.99% metals basis:
外观Appearance 白色结晶
X-射线衍射分析X-Ray Diffraction Conforms to standard
纯度Purity ≥99.99% Based on Trace Metals Impurities of ICP
ICP assay confirms sulfur component.
痕量金属分析Trace Metal Analysis ≤100ppm by ICP Atomic emission
灼烧残渣residue on ignition ≤0.005%
不溶物insoluble matter ≤0.005% (c=10%, H2O)
氯chloride ≤5 ppm
铁iron ≤5 ppm
重金属heavy metals ≤5 ppm (as pb)
硝酸根nitrate ≤0.001%
pH 5.0 - 6.0 , 25 °C (c=5%, H2O)
磷酸盐phosphate ≤5 ppm
≥99.999% metals basis:
外观Appearance 白色结晶或结晶粉末
X-射线衍射分析X-Ray Diffraction Conforms to standard
红外光谱鉴别Infrared spectrometry Conforms to Structure
纯度Purity ≥99.999% Based on Trace Metals Impurities of ICP
S 23,7 - 24,9 % (Gravimetric Analysis With Barium Chloride)
SO4 71,2 - 74,2 % (Gravimetric Analysis With Barium Chloride)
痕量金属分析Trace Metal Analysis ≤20ppm by ICP Atomic emission
(Ca、Cr、Fe、Mg、Na)
沪公网安备 31012002003055号 |