項(xiàng)目Item                                                                 分析純        化學(xué)純
                                                                                    (AR)         (CP)
含量［NH₄H₂PO₄］Assay,%                              ≥99.0        98.5
水溶液反應(yīng)Solution reaction                                    合格         合格
澄清度試驗(yàn)Clarity                                                    合格         合格
水不溶物Insoluble matter in water,%                  ≤0.005       0.01
氯化物(Cl)Chloride,%                                              ≤0.0005      0.001
硫化合物(以SO₄計(jì))Sulfur compounds                ≤0.005       0.01
硝酸鹽(NO₃)Nitrate,%                                         ≤0.001       0.002
鐵(Fe)Iron,%                                                        ≤0.001       0.003
砷(As),Arsenic,%　                                              ≤0.0005      0.002
重金屬(以Pb計(jì))Heavy metals,%                         ≤0.0005      0.001
堿金屬(以磷酸鹽計(jì))Alkali metals,%                    ≤0.2         0.3

ACS級(jí)
項(xiàng)目名稱Item                                        ACS Grade
含量NH4H2PO4Assay                                    ≥98.0%
pH(5%溶液,25.0℃)pH                                  3.8-4.4
水不溶物Insoluble matter                             ≤0.005%
氯化物(Cl)Chloride(Cl)                               ≤5ppm
硝酸鹽(NO₃)Nitrate                                   ≤0.001%
硫酸鹽(SO₄)Sulfate                                   ≤0.01%
重金屬(以Pb計(jì))Heavy metals(as Pb)                    ≤5ppm
鐵(Fe)Iron(Fe)                                       ≤0.001%
鈣(Ca)Calcium(Ca)                                    ≤0.001%
鎂(Mg)Magnesium(Mg)                                  ≤5ppm
鉀(K)Potassium(K)                                    ≤0.005%
鈉(Na)Sodium(Na)                                     ≤0.005%


品級(jí)Grade                               植物細(xì)胞培養(yǎng)級(jí)，≥99.0% (T)  
                                     (for plant cell culture，≥99.0% (T))
外觀Appearance                          白色粉末
純度Purity                              ≥99.0% (T)  
水溶解試驗(yàn)solubility in water           clear colorless ， 20g plus 200ml of water
植物細(xì)胞培養(yǎng)測(cè)試plant cell culture test pass


≥99.99% metals basis：


外觀Appearance                          白色結(jié)晶
純度Purity                              ≥99.99% Based on Trace Metals Impurities of ICP
滴定純度Purity                          ≥99.0 % (Titration by NaOH)
ICP:                                     Confirms Phosphorus Component Confirmed
痕量金屬分析Trace Metal Analysis        ≤100ppm by ICP Atomic emission
(Fe、Mg、Na)  
不溶物Insoluble matter: (10%, H2O)      ≤0.005 %
氯Chloride (Cl)                         ≤5 ppm
鐵Iron (Fe)                             ≤0.001 %
重金屬Heavy Metal (as Pb)               ≤5 ppm
鉀Potassium (K)                         ≤0.005 %
鈉Sodium (Na)                           ≤0.005 %
硝酸根Nitrate (NO3)                     ≤0.001 %
pH @ 25 Deg C (5% Solution)             3.8 - 4.4
硫酸根Sulfate (SO4)                     ≤0.01 %
鈣Calcium (Ca)                          ≤0.001 %
鎂Magnesium (Mg)                        ≤0.0005 %



分析標(biāo)準(zhǔn)品：

含量assay                             ≥99.5% (T)
總雜質(zhì)total impurities                12.18%±0.10% total Kjeldahl nitrogen
干燥損失loss on drying                ≤0.2%
pH                                    3.8-4.4 (25 °C, 50 mg/mL in H2O)
水溶性solubility H2O:                 soluble, clear, colorless



品級(jí)Grade                               色譜純  
                                   (grade for HPLC)
外觀Appearance                          白色粉末或結(jié)晶
純度Purity                              ≥99.0% (T)
pH                                      4.0-5.0 (20 °C, 10% in H2O)
水溶性solubility H2O:                   soluble0.1 g/mL at 25 °C, clear, colorless
λ 10 % in H2O
紫外吸光值UV absorption
  λ: 210 nm A:                         ≤0.05
  λ: 220 nm A:                         ≤0.04
  λ: 230 nm A:                         ≤0.03
  λ: 240 nm A:                         ≤0.02
  λ: 500 nm A:                         ≤0.02
RP gradient test                       corresponds to standard
filter test                            corresponds to standard  

危險(xiǎn)品標(biāo)志  Xi
危險(xiǎn)類別碼  36/37/38
WGK Germany  1
HazardClass  8
PackingGroup  III
安全說明  24/25-36-26

用作分析試劑、緩沖劑