●NaHS:≥70.0%
●Na2S%:≤3.0%
●Na2SO3%:≤1.5%
●Fe%:≤0.003%

●Appearance:Clear liquid, without suspending impurities
●Chromaticity ( in Hazen )( Pt-Co ), ≤:10
●Acetic acid content , ≥:99.7%
●Moisture , ≤:0.15%

●Purity (%≥):99.0
●Sodium Carbonate (%≤):0.8
●Sodium Chloride (%≤):0.08
●Iron Content (% ≤ ):0.004

●Iron Content:Na2S %
●1500ppm Max:60.0 Min
●150ppm Max:60.0 Min
●80ppm Max:60.0 Min

●Na2S2O4:≥90%
●Water insolubles:≤0.05%
●Iron (Fe):≤20ppm
●Zinc (Zn):≤1ppm

● Formula:C2H2O4.2H2O
● Oxalic Acid Content : ≥99.6%
● Sulphate (SO42-) : ≤ 0.07%
● Chloride (Cl -): ≤0.005%

●Item:90% Grade
●Colour Index Platinum Cobalt:10 max
●Purity:90 % min
●Sulphate as SO4:0.001 % max

●Appearance:White Granule or Crystalline Powder
●Content,% :97.0 min
●NaOH,% ≤:1.00
●Na2C03,% ≤:1.00