GB/T 1396-93
項(xiàng)目Item                                                           分析純      化學(xué)純
                                                                              (AR)        (CP)
含量［(NH42SO4)Assay,%                                  ≥99.0      99.0
pH(50g/L溶液，25℃)                                     4.8-6.0    4.8-6.0
澄清度試驗(yàn)Clarity                                        合格       合格
水不溶物Insoluble matter in water,%                     ≤0.002     0.01
灼燒殘?jiān)?以硫酸鹽計(jì))Ignition residue,%                  ≤0.01      0.5
氯化物(Cl)Chloride,%                                    ≤0.0005    0.001
硝酸鹽(NO3)Nitrate,%                                    ≤0.001     0.005
磷酸鹽(PO4)Phosphate,%                                  ≤0.0005    0.002
鈣(Ca)Calcium,%                                         ≤0.005      --
鐵(Fe)Iron,%                                            ≤0.0002    0.0005
砷(As)Arsenic,%                                         ≤0.00002   0.0002
重金屬(以Pb計(jì))Heavy metals,%                            ≤0.0005    0.002

品級Grade                               優(yōu)級純  
                                        (GR)
含量assay                              ≥99.5% (T)
不溶物insoluble matter,                passes filter test
灼燒殘?jiān)黂esidue 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
陽離子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級
項(xiàng)目名稱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
灼燒殘?jiān)黂esidue after ignition                          ≤0.005%
氯化物(Cl)Chloride(Cl)                                  ≤5ppm
硝酸鹽(NO3)Nitrate                                      ≤0.001%
磷酸鹽(PO4)Phosphate                                    ≤5ppm
重金屬(以Pb計(jì))Heavy metals(as Pb)                       ≤5ppm
鐵(Fe)Iron(Fe)                                          ≤5ppm

品級Grade                               用于分子生物學(xué)  
                                    (for molecular biology, ≥99.0%)
外觀Appearance                          白色粉末
紅外光譜鑒別Infrared spectrometry       Conforms
含量assay                               ≥99.0%(中和滴定）
水溶解試驗(yàn)solubility in water           CLEAR ,2G/3ML WATER
不溶物Insoluble matter                  ≤0.005%
氯chloride (Cl-):                       ≤5 ppm
銅Cu:                                   ≤5 ppm
鐵Fe:                                   ≤5 ppm
鋅Zn:                                   ≤5 ppm
重金屬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

品級Grade                               用于植物細(xì)胞培養(yǎng) 
                                    (plant cell culture tested, ≥99.0%)
外觀Appearance                          白色粉末
紅外光譜鑒別Infrared spectrometry       Conforms
含量assay                               ≥99.0%(中和滴定）
水溶解試驗(yàn)solubility in water           CLEAR ,2G/3ML WATER
不溶物Insoluble matter                  ≤0.005%
氯chloride (Cl-):                       ≤5 ppm
銅Cu:                                   ≤5 ppm
鐵Fe:                                   ≤5 ppm
鋅Zn:                                   ≤5 ppm
重金屬heavy metals (as Pb):             ≤2 ppm
植物細(xì)胞培養(yǎng)Plant cell culture test     PASSES

≥99.99% metals basis：

外觀Appearance                          白色結(jié)晶
X-射線衍射分析X-Ray Diffraction         Conforms to standard
純度Purity                              ≥99.99% Based on Trace Metals Impurities of ICP
ICP assay                               confirms sulfur component. 
痕量金屬分析Trace Metal Analysis        ≤100ppm by ICP Atomic emission
灼燒殘?jiān)黵esidue on ignition             ≤0.005%
不溶物insoluble matter                  ≤0.005%  (c=10%, H2O)
氯chloride                              ≤5 ppm 
鐵iron                                  ≤5 ppm 
重金屬heavy metals                      ≤5 ppm  (as pb)
硝酸根nitrate                           ≤0.001%
pH                                      5.0 - 6.0 ， 25 °C (c=5%, H2O)
磷酸鹽phosphate                         ≤5 ppm

≥99.999% metals basis：

外觀Appearance                          白色結(jié)晶或結(jié)晶粉末
X-射線衍射分析X-Ray Diffraction         Conforms to standard
紅外光譜鑒別Infrared spectrometry       Conforms to Structure
純度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)
痕量金屬分析Trace Metal Analysis        ≤10ppm by ICP Atomic emission
(Ca、Cr、Fe、Mg、Na)

類別 有毒物品
毒性分級 中毒
急性毒性 口服-大鼠LD50: 3000 毫克/公斤; 腹腔-小鼠LD50: 610 毫克/公斤
爆炸物危險(xiǎn)特性 與氯酸鉀加熱發(fā)生白光;
可燃性危險(xiǎn)特性 可燃; 受熱產(chǎn)生有毒氮氧化物, 硫氧化物和氨煙霧
儲運(yùn)特性 庫房通風(fēng)低溫干燥; 與硝酸鉀, 亞硝酸鉀分開存放
滅火劑 干粉、泡沫、砂土、二氧化碳, 霧狀水

用作肥料，還可用作焊藥、織物防火劑，醫(yī)藥上作鹽析劑、滲透壓調(diào)節(jié)劑等
用途  化學(xué)工業(yè)用作雙氧水、銨明礬和氯化銨生產(chǎn)的原料，焊接工業(yè)用作焊藥。紡織工業(yè)用作織物的防火劑。電鍍工業(yè)用作電鍍浴添加劑。農(nóng)業(yè)上用作氮肥，適用于一般土壤和作物。食用級產(chǎn)品用作面團(tuán)調(diào)節(jié)劑、酵母養(yǎng)料。