Fertilizers for supplying plants with micronutrients

US4141714A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Volker Mues · Wuppertal, DE
• Johannes Niggemann · Leverkusen, DE

Key dates

• Filing date: Jan 16, 1978
• Grant date: Feb 27, 1979
• Expiry date: Jan 16, 1998

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S71/02
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A fertilizer composition for supplying plants with nutrient iron containing as an active ingredient at least prussiate of the formula ##STR1## in which M represents an alkali metal ion, alkaline earth metal ion, heavy metal ion or ammonium ion or a proton, PA1 R.sup.1, r.sup.2, r.sup.3 and R.sup.4, independently of one another, each represent hydrogen, alkyl, hydroxyalkyl, cycloalkyl, optionally substituted aryl or aralkyl or PA1 R.sup.1, together with R.sup.2, and/or R.sup.3, together with R.sup.4, represent an alkylene group, a bis-alkylene ether group or a bis-alkylene thioether group or, together with the adjacent nitrogen atom, form an unsaturated heterocyclic ring, or PA1 R.sup.2 and R.sup.4 each represent hydrogen, alkyl or hydroxyalkyl and at the same time PA1 R.sup.1 and R.sup.3 together represent an alkylene group, PA1 X represents an alkylene group, hydroxyalkylene group, cycloalkylene group, bis-alkylenecycloalkylene group, bis-alkylene ether group, tris-alkylene diether group, bis-alkylene thioether group or bis-alkyleneamino group, PA1 A represents 1 or 2 and PA1 B represents 1, 2, 3, or 4. Also disclosed are certain new prussiates falling within the formula given abo…