硫酸氫鉀的化學(xué)性質(zhì),質(zhì)量標準及用途

白色片狀或粒狀結(jié)晶。易潮解。溶于水，溶液呈強酸性。溫度再高即失水變?yōu)榻沽蛩徕洝７莱?、密封保存。在乙醇中分解。高溫時失去水分并易成為焦硫酸鹽。
熔點  214 °C(lit.) 
密度  2.512 g/mL at 25 °C(lit.) 
儲存條件  5-15°C  
溶解度  H2O: 1 M at 20 °C, clear, colorless
 

99.995% metals basis:

外觀Appearance                                    White or Opaque Crystals or Crystalline Powder
X-射線衍射分析X-Ray Diffraction         Conforms to Structure
純度Purity                                                 ≥99.995% Based on Trace Metals Impurities  
ICP:                                                          Confirms K and S Components Confirmed
總痕量金屬雜質(zhì)total metallic impurities ≤50ppm by ICP Atomic emission
總氮total nitrogen (N)                             ≤10 ppm  
氯chloride (Cl-):                                       ≤5 ppm 
磷酸鹽phosphate (PO43-):                    ≤10 ppm 
  Al:                                   ≤0.1 ppm 
  As:                                   ≤0.01 ppm 
  Ba:                                   ≤0.5 ppm 
  Be:                                   ≤0.01 ppm 
  Ca:                                   ≤5 ppm 
  Cd:                                   ≤0.01 ppm 
  Ce:                                   ≤0.05 ppm 
  Co:                                   ≤0.01 ppm 
  Cr:                                   ≤0.5 ppm 
  Cu:                                   ≤0.02 ppm 
  Dy:                                   ≤0.01 ppm 
  Er:                                   ≤0.01 ppm 
  Eu:                                   ≤0.01 ppm 
  Fe:                                   ≤1 ppm 
  Ga:                                   ≤0.05 ppm 
  Gd:                                   ≤0.01 ppm 
  Hg:                                   ≤0.005 ppm 
  Ho:                                   ≤0.01 ppm 
  In:                                   ≤0.01 ppm 
  La:                                   ≤0.01 ppm 
  Li:                                   ≤0.2 ppm 
  Lu:                                   ≤0.01 ppm 
  Mg:                                   ≤1 ppm 
  Mn:                                   ≤0.02 ppm 
  Mo:                                   ≤0.05 ppm 
  Na:                                   ≤5 ppm 
  Nd:                                   ≤0.05 ppm 
  Ni:                                   1 ppm 
  Pb:                                   ≤0.05 ppm 
  Pr:                                   ≤0.01 ppm 
  Sc:                                   ≤0.05 ppm 
  Sm:                                   ≤0.01 ppm 
  Sr:                                   ≤5 ppm 
  Tb:                                   ≤0.01 ppm 
  Th:                                   ≤0.01 ppm 
  Ti:                                   ≤0.05 ppm 
  Tl:                                   ≤0.02 ppm 
  Tm:                                   ≤0.01 ppm 
  U:                                    ≤0.01 ppm 
  V:                                    ≤0.01 ppm 
  Y:                                    ≤0.01 ppm 
  Yb:                                   ≤0.01 ppm 
  Zn:                                   ≤0.1 ppm
 

HG/T3-915-76
項目ltem                                                    分析純          　   化學(xué)純
                                                                      (AR)                 (CP)
含量(KHSO4)Assay,%                         ≥ 99.0～101.0          99.0～101.0
澄清度試驗Clarity                                     合格                 合格
水不溶物lnsoluble matter in water,% ≤ 0.002                0.005
氯化物(Cl)Chloride,%                           ≤ 0.0005               0.002
氮化合物(N)Nitrogen compounds,% ≤ 0.002                0.005
磷酸鹽(PO4)Phosphate,%                     ≤ 0.001                0.002
硅酸鹽(SiO3)Silicate,%                        ≤ 0.001                0.005
鈉(Na)Sodium,%                                  ≤ 0.02                 0.05
鎂(Mg)Magnesium,%                          ≤ 0.0005               0.002
鋁(Al)Alumium,%                                  ≤ 0.001                0.005
鈣(Ca)Calcium,%                              ≤ 0.002                0.005
鐵(Fe)Iron,%                                        ≤ 0.0005               0.002
砷(As)Arsenic,%                                   ≤ 0.0003               0.0005
重金屬(以Pb計)Heavy metals,%        ≤ 0.0005               0.002

99.99% metals basis:

外觀Appearance                          White or Opaque Crystals or Crystalline Powder
X-射線衍射分析X-Ray Diffraction         Conforms to Structure 
純度Purity                              ≥99.99% Based on Trace Metals Impurities 
滴定純度Purity (Titration by NAOH)      96.5 - 103.5 % 
ICP:                                    Confirms K and S Components Confirmed
總痕量金屬雜質(zhì)total metallic impurities  ≤200ppm by ICP Atomic emission

用作分析試劑、防腐劑、分析硅時用作熔劑

危險品標志  C 
WGK Germany  1 
RTECS號 TS7200000 
F  3 
HazardClass  8 
PackingGroup  II 
危險類別碼  34-37 
安全說明  26-36/37/39-45