磷酸二氢钾|7778-77-0|二氢磷酸钾|艾科试剂

货号	品名	产品规格	包装	单价(RMB)	可用库存	备注
141599	磷酸二氢钾	HPLC	100g	169.00	>10	15021
141598	磷酸二氢钾	SP	25g	68.00	>10	4023.
141597	磷酸二氢钾	GR	500g	85.00	>10	4017,15021
141596	磷酸二氢钾	PT	50g	112.00	>10	4017.4023
141595	磷酸二氢钾	CP	500g	47.00	>10	促销
141594	磷酸二氢钾	药用级	500g	49.0	>10	15010
107605	磷酸二氢钾	AR	500g	49.00	>10	促销

性状

无色至白色结晶或结晶性粉末，无臭。易溶于水，不溶于乙醇。水溶液呈酸性，2.7%的水溶液PH为4.2-4.7。于空气中稳定。ADI0-70mg/kg(FAO/WHO，1994）。
熔点 252.6 °C(lit.)
密度 2.338 g/mL at 25 °C(lit.)
溶解度 H2O: 1.5 M at 20 °C, clear, colorless

质量标准

GB/T1274-93
项目ltem                                               分析纯     化学纯
                                                              (AR)       (CP)
含量(KH₂PO₄),%                              ≥99.5       99.0
pH(50g/L,25℃)pH of water solution      4.2～4.5   4.2～4.5
澄清度试验Clarity                           合格　　　合格
水不溶物lnsoluble matter in water,%   ≤0.002      0.005
干燥失重Drying loss,%                 ≤0.2        0.3
氯化物(Cl)Chloride,%                  ≤0.001      0.005
硫酸盐(SO₄)Sulfale,%                  ≤0.003      0.005
总氮量(N)Total nitrogen,%             ≤0.001      0.002
砷(As)Arsenic,%                            ≤0.0005     0.002
钠(Na)Sodium,%                          ≤0.02       0.05
铁(Fe)Iron,%                                  ≤0.001      0.005
重金属(以Pb计)Heavy metals,%          ≤0.001      0.005

ACS级
项目名称　                            ACS Grade
含量(KH₂PO₄)Assay                    ≥99.0%
pH(5%溶液,25.0℃)
pH of a 5% solution at 25.0℃         4.4-4.5
水不溶物Insoluble matter             ≤0.01%
干燥失重Loss on drying               ≤0.2%
氯化物(Cl)Chloride                   ≤0.001%
硫酸盐(SO₄)Sulfate                   ≤0.003%
重金属(以Pb计)Heavy metals(as Pb)    ≤0.001%
铁(Fe)Iron                           ≤0.002%
钠(Na)Sodium                         ≤0.005%

99.99% metals basis:

外观Appearance                          White or Colorless Powder/Crystals
X-射线衍射分析X-Ray Diffraction         Conforms to Structure
纯度Purity                              ≥99.99% Based on Trace Metals Impurities
磷Titration by NAOH (% P)               22.3 - 23.2 %
痕量金属分析total metallic impurities   ≤200ppm by ICP Atomic emission
(Al、Ba、Ca、Cd、Fe、Li、Mg、Mn、Mo、Na、Rb、Si、Sr、Tl、Zn)

品级Grade                               细胞和昆虫细胞培养级，≥99 %
                   (for cell culture, for insect cell culture，≥99% )
外观Appearance                          White Powder
水溶性Solubility                        Colorless Clear ，100 mg/ml, H2O
磷Phosphorus by ICP                     positive for phosphorus
钾Potassium  by ICP                     positive for potassium
纯度Purity (Titration by NaOH)          ≥99 %
细胞培养试验Cell Culture Test           Pass
昆虫细胞培养试验Insect Cell Test        Pass

品级Grade                               植物细胞培养级，≥99 %
                                   (for plant cell culture, ≥99%)
外观Appearance                          White Powder
水溶性Solubility                        Colorless Clear ，100 mg/ml, H2O
磷Phosphorus by ICP                     positive for phosphorus
钾Potassium  by ICP                     positive for potassium
纯度Purity (Titration by NaOH)          ≥99 %
细胞培养试验Cell Culture Test           Pass
昆虫细胞培养试验Insect Cell Test        Pass

品级Grade                               分子生物学级，≥99 %
                                   (for molecular biology, ≥99%)
外观appearance                           white powder
水溶性solubility                         clear colorless solution at 100mg/ml in water
纯度Purity (Titration by NaOH)           ≥99 %
磷Phosphorus by ICP                      positive for phosphorus
钾Potassium  by ICP                      positive for potassium
氯chloride                               ≤ 10 ppm
铁iron                                   ≤ 20 ppm
重金属heavy metals(as lead)              ≤ 10 ppm
DNA酶DNases,                             none detected
RND酶RNases,                             none detected
蛋白酶proteases,                         none detected

品级Grade                               色谱级，≥99.5% (T)
                                       (for HPLC，≥99.5% (T))
外观appearance                           white powder
纯度Purity (Titration by NaOH)           ≥99.5%
pKa (25 °C)                             (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
水溶性solubility H2O:                    soluble0.1 g/mL at 25 °C, clear, colorless
λ                                  10 % in H2O
UV absorption λ: 210 nm A:               ≤0.1
  λ: 220 nm A:                           ≤0.06
  λ: 230 nm A:                           ≤0.04
  λ: 300 nm A:                           ≤0.02
  λ: 500 nm A:                           ≤0.02
test for RP gradient                     corresponds to standard
filter test                              corresponds to standard