ГУМИНОВАЯ КИСЛОТА

Description

The product is registered under the name “humic acid” and the synonym “nitrohumic acid” (USP/EP/BP), CAS 308067-45-0, formula C9H9NO6. According to this CAS number, in chemical databases the substance is indicated as an individual nitrogen-containing compound with a molecular weight of 227.17, and not as natural humic acid - a complex heterogeneous mixture of high-molecular organic compounds of soil origin without a single chemical formula. The name “humic acid” in this case is a trade/registration name, focused on the area of ​​application (plant growth stimulant), and not a strict chemical name.

Basic Attributes

• CAS No: 308067-45-0
• Chemical formula: C9H9NO6
• Molecular Weight: 227.169998168945
• EU number: 215-809-6
• Synonym: NITROHUMIC ACID, Nitrohumic acid USP/EP/BP

Physical properties

The melting point exceeds 300 °C, which is typical for polar polyfunctional organic acids with a developed system of hydrogen bonds. In the dump, there are no physical characteristics (density, solubility, refractive index) - there is no data about them in the supplied description.

Safety Information

• WGK Germany: 3
• Hazard class code: 36/37/38
• Safety instructions: 26-36
• RTECS number: MT6544000
• Tags: Xi

Substance class and application

Natural humic and nitrohumic acids are products of humification of plant and microbial residues, a class of high-molecular aromatic polyoxycarboxylic acids. In agrochemistry, their salts and derivatives are used as growth and rooting stimulants, means for increasing germination energy and seed germination, and components of soil conditioners that increase cation exchange capacity and retain moisture. Nitrohumic forms are additionally used as a slow-release source and stabilizer of nitrogen fertilizers. In the oil and gas industry, humic acids and their salts are included in drilling fluids as fluid loss reducers.

Storage

Store in a closed container, in a dry place, away from strong acids and oxidizing agents, with which an undesirable reaction is possible. When working, take standard measures for mildly irritating solids: gloves, eye protection, avoiding dust formation.

Mechanism of action on the plant

The effect of humic and nitrohumic acids on the plant is associated with several effects: stimulation of respiration and division of root cells, increasing the permeability of cell membranes for mineral ions, chelation of microelements (iron, zinc, manganese) with their conversion into a form available for absorption by the root, and activation of enzymes involved in the energy metabolism of the cell. The nitrogen-containing nitro group in the nitrogumic form additionally makes the molecule a source of fixed nitrogen, which is slowly released during decomposition in the soil.

Release forms and compatibility

On sale, humic and nitrohumic acids are often found not in pure form, but as sodium or potassium salts - humates, which are better soluble in water and convenient for preparing working solutions. They are combined with macro- and microfertilizers, growth regulators and biological products, provided that the pH of the solution is compatible; incompatibility manifests itself primarily with strong acids and oxidizing agents that destroy the structure of the molecule.