Abstract: The present invention relates to the use of a reduced-phosphate builder system based on alkali metal tripolyphosphate and sodium iminodisuccinate for producing material-protective dishwashing detergent formulations for automatic machine dishwashing.

Abstract: The present invention relates to substance mixtures comprising at least one complexing agent and at least one enzyme, and to the use thereof in liquid washing compositions and liquid cleaning compositions, said complexing agent having a complex formation constant for calcium of from 3 to 6 and said calcium-binding enzyme having a calcium binding capacity of at least 1 molar equivalent of calcium per molar equivalent of enzyme.

Abstract: The present invention relates to chelated plant micronutrients of the sodium, potassium, sodium/ammonium or potassium/ammonium salts of N-(1,2-dicarboxyethyl)-D,L-aspartic acid and their mixtures with metal ions selected from the group of the inorganic or organic zinc, manganese, iron(II), iron(III) or copper(II) compounds, and to a process for the preparation of these chelated micronutrient fertilizers.

Abstract: The invention relates to shaped bodies for the sanitary sector, preferably shaped bodies preventing or dispersing urine scale, which are also termed WC blocks or toilet blocks, for use in the household or public commercial sanitary facilities, containing polysuccinimide in combination with polyalkylene glycols or alkyl polyalkylene glycols and/or phosphoric acid and also disintegrants.

Abstract: The invention relates to a process for the preparation of iminodisuccinic acid ammonium metal salts, characterized in that, in a first stage, maleic anhydride (MA), alkali metal hydroxide and water are mixed in the molar ratio of 2:0-3:5-30 and then ammonia is metered in in the ratio MA:ammonia 2:1.5-8, in order to obtain iminodisuccinic acid ammonium salts which, in a second stage, are reacted with metal oxides, metal hydroxides (and) or other metal salts or their mixtures to give iminodisuccinic acid ammonium metal salts of the formula 8, IDA(NH4)x(Na)y(K)z(Me)m.(NH3)n??Formula 8 in which IDA represents iminodisuccinic acid anion, x=0.1-3.9 y=0-3 z=0-3 m=0.1-2 n=0-6 and Me represents metals of the IInd, IIIrd and IVth main groups and of the Ist to VIIIth subgroups as well as metals of the lanthanide series, of the Periodic Table, which can occur in the oxidation states 1, 2, 3 or 4, the compounds themselves and their intermediates, and the use.

Abstract: The invention relates to a process for the preparation of iminodisuccinic acid ammonium metal salts, characterized in that, in a first stage, maleic anhydride (MA), alkali metal hydroxide and water are mixed in the molar ratio of 2:0–3:5–30 and then ammonia is metered in in the ratio MA: ammonia 2:1.5–8, in order to obtain iminodisuccinic acid ammonium salts which, in a second stage, are reacted with metal oxides, metal hydroxides (and) or other metal salts or their mixtures to give iminodisuccinic acid ammonium metal salts of the formula 8, IDA(NH4)x(Na)y(K)z(Me)m.(NH3)nFormula 8 in which IDA represents iminodisuccinic acid moiety, x=0.1–3.9 y=0–3 z=0–3 m=0.1–2 n=0–6 and Me represents metals of the IInd, IIIrd and IVth main groups and of the Ist to VIIIth subgroups as well as metals of the lanthanide series, of the Periodic Table, which can occur in the oxidation states 1, 2, 3 or 4, the compounds themselves and their intermediates and the use.

Abstract: The present invention relates to a method of performing concentration determinations of aqueous solutions of polyaspartic acid and/or salts thereof.

Abstract: The present invention relates to a process for the preparation of storage-stable iminodisuccinate solutions, by subjecting an aqueous solution of iminodisuccinate having an ammonia content of less than 20 ppm to thermal treatment at 40 to 120° C. for 5 hours up to 300 days and subsequent distillation at <120° C.

Abstract: The present invention relates to chelated plant micronutrients of the sodium, potassium, sodium/ammonium or potassium/ammonium salts of N-(1,2-dicarboxyethyl)-D,L-aspartic acid and their mixtures with metal ions selected from the group of the inorganic or organic zinc, manganese, iron(II), iron(III) or copper(II) compounds, and to a process for the preparation of these chelated micronutrient fertilizers.

Abstract: The invention relates to a process for the preparation of iminodisuccinic acid ammonium metal salts, characterized in that, in a first stage, maleic anhydride (MA), alkali metal hydroxide and water are mixed in the molar ratio of 2:0-3:5-30 and then ammonia is metered in in the ratio MA: ammonia 2:1.

Abstract: The present invention relates to a method of performing concentration determinations of aqueous solutions of polyaspartic acid and/or salts thereof.

Abstract: Polymers having repeating succinyl units, especially polyaspartic acids, are suitable for antifreezing compositions.