Lab glossary
Ferrous ammonium sulphate (FAS)
Fe(NH₄)₂(SO₄)₂·6H₂O, the titrant used to measure unreacted dichromate in the COD test. Its molarity changes slowly, so it is standardised against dichromate every day.
- Also: FAS
- Also: Mohr's salt
Fe(NH₄)₂(SO₄)₂·6H₂O, the titrant used to measure unreacted dichromate in the COD test. Its molarity changes slowly, so it is standardised against dichromate every day.