Ammonium sulfate

TraceSELECT™, for trace analysis, ≥99.9999% (metals basis)
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TraceSELECT™ Ultra and TraceSELECT

  • ultra-pure acids, bases, and salts for smelting and wet digestion in environmental, water, and food analysis
  • sample preparation for trace analysis requires reagents of the highest purity; our TraceSELECT Ultra products for ultra-trace analysis at ppb and even ppt levels are produced by sub-boiling distillation
  • the acids, bases, and salts in the TraceSELECT series have been developed for sample preparation and analysis in the ppb (μg/kg) trace range
  • packaged in high-quality containers appropriate for each product
  • the reagents are produced and bottled under clean-room conditions



CAS Numbers (All) EC Number Linear Formula
MDL Number
Molar Mass
132.14 g/mol


silver (Ag)Max. 0.01 ppm
aluminium (Al)Max. 0.05 ppm
arsenic (As)Max. 0.01 ppm
gold (Au)Max. 0.01 ppm
barium (Ba)Max. 0.05 ppm
beryllium (Be)Max. 0.01 ppm
bismuth (Bi)Max. 0.05 ppm
calcium (Ca)Max. 0.1 ppm
cadmium (Cd)Max. 0.005 ppm
cerium (Ce)Max. 0.01 ppm
cobalt (Co)Max. 0.005 ppm
chromium (Cr)Max. 0.01 ppm
cesium (Cs)Max. 0.01 ppm
copper (Cu)Max. 0.005 ppm
dysprosium (Dy)Max. 0.01 ppm
erbium (Er)Max. 0.01 ppm
europium (Eu)Max. 0.01 ppm
iron (Fe)Max. 0.05 ppm
gallium (Ga)Max. 0.05 ppm
gadolinium (Gd)Max. 0.01 ppm
germanium (Ge)Max. 0.05 ppm
hafnium (Hf)Max. 0.01 ppm
mercury (Hg)Max. 0.001 ppm
holmium (Ho)Max. 0.01 ppm
indium (In)Max. 0.05 ppm
Iridium (Ir)Max. 0.01 ppm
potassium (K)Max. 0.1 ppm
lanthanum (La)Max. 0.01 ppm
lithium (Li)Max. 0.05 ppm
lutetium (Lu)Max. 0.01 ppm
magnesium (Mg)Max. 0.01 ppm
manganese (Mn)Max. 0.01 ppm
molybdenum (Mo)Max. 0.05 ppm
sodium (Na)Max. 0.1 ppm
niobium (Nb)Max. 0.01 ppm
neodymium (Nd)Max. 0.01 ppm
nickel (Ni)Max. 0.01 ppm
lead (Pb)Max. 0.005 ppm
palladium (Pd)Max. 0.01 ppm
praseodymium (Pr)Max. 0.01 ppm
platinum (Pt)Max. 0.01 ppm
rubidium (Rb)Max. 0.01 ppm
Rhenium (Re)Max. 0.01 ppm
Rhodium (Rh)Max. 0.01 ppm
scandium (Sc)Max. 0.05 ppm
selenium (Se)Max. 0.05 ppm
samarium (Sm)Max. 0.01 ppm
tin (Sn)Max. 0.01 ppm
tantalum (Ta)Max. 0.01 ppm
terbium (Tb)Max. 0.01 ppm
tellurium (Te)Max. 0.01 ppm
thorium (Th)Max. 0.01 ppm
titanium (Ti)Max. 0.05 ppm
thallium (Tl)Max. 0.005 ppm
thulium (Tm)Max. 0.01 ppm
uran (U)Max. 0.01 ppm
vanadium (V)Max. 0.05 ppm
tungsten (W)Max. 0.01 ppm
yttrium (Y)Max. 0.01 ppm
ytterbium (Yb)Max. 0.01 ppm
zinc (Zn)Max. 0.05 ppm
zirconium (Zr)Max. 0.01 ppm
chloride (Cl)Max. 3 ppm
nitrate (NO3)Max. 10 ppm
phosphate (PO4)Max. 5 ppm


Boiling Point/RangeNo data available
Density1.760 g/cm3 (20 °C)
FlashpointNot applicable
GradeTrace Analysis
Incompatible MaterialsReactions with strong alkalies, Strong oxidizing agents
Lower Explosion LimitNot applicable
Melting Point/Range350 °C
Partition Coefficient-5.1
Purity Percentage100.00
Purity Details>=99.9999%
Solubility in Water754.0 g/l (20 °C)
Upper Explosion LimitNot applicable
Vapor PressureNo data available
ViscosityNo data available
pH-Value5.0-6.0 (20 °C)
Product LineTraceSELECT™
Storage TemperatureAmbient

Safety Information

Hazard ClassN/A
Package GroupN/A
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