reagentlife
第14楼2012/02/14
某品牌氢氧化剂Specification如下,没有提到剩余的14%到哪去了?
Potassium hydroxide pellets for analysis (max. 0.002% Na) EMSURE® ACS,ISO,Reag. Ph Eur
Spec. Values
Assay KOH 85.0 - 100.5 %
total alkalinity calc. as KOH 85.0 - 100.5 %
Identity passes test
Appearance of solution passes test
Carbonate (as K2CO3) ≤ 1.0 %
Chloride (Cl) ≤ 0.0005 %
Phosphate (PO4) ≤ 0.0005 %
Silicate (SiO2) ≤ 0.002 %
Sulphate (SO4) ≤ 0.0005 %
Total nitrogen (N) ≤ 0.0003 %
Heavy metals
as Ag ≤ 0.001 %
as Pb ≤ 0.001 %
Al (Aluminium) ≤ 0.0002 %
Ca (Calcium) ≤ 0.0005 %
Cd (Cadmium) ≤ 0.00001 %
Cu (Copper) ≤ 0.0001 %
Fe (Iron) ≤ 0.0005 %
Mg (Magnesium) ≤ 0.0005 %
Mn (Manganese) ≤ 0.00005 %
Na (Sodium) ≤ 0.002 %
Ni (Nickel) ≤ 0.0001 %
Pb (Lead) ≤ 0.0001 %
Zn (Zinc) ≤ 0.0001 %