- FeC2H4(NH3)2(SO4)2-4H2Or- M = 382,14 g/molr- CAS [113193-60-5]r- Tariff number: 2921 21 00 00r- Appearance: Verde clarorrSPECIFICATIONSrassay (on dried sample): min. 99,5 %rrThis volumetric standard is directly traceable to NIST Sodium Oxalate (Reductometric Standard). r
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