Chelating Agents
REACH
Sodium humate
CAS Number
68131-04-4
EC Number
268-608-0
What is Sodium humate?
Sodium humate (CAS 68131-04-4) is the sodium salt form of humic acids, derived from leonardite, lignite, or peat through alkaline extraction.
Where is Sodium humate used?
- Agriculture: chelating micronutrients such as iron, zinc, and manganese in soils and irrigation systems
- Liquid fertilizers, foliar sprays, and soil conditioners: improving cation exchange capacity
- Water treatment: flocculant aid and pH buffer for organic load and treatment chemistry
- Municipal and industrial effluent systems: chemical stabilization
- Feed-grade: gut-conditioning additive in livestock and poultry diets
- It supports digestive tract pH management in commercial animal husbandry.
Commercial specifications
- Humic acid content typically 50% to 85% on a dry basis
- Solubility and humic acid content vary by grade
- Specifications vary by application and regional regulatory requirements
Other Names (Synonyms)
Humic acids, sodium salts|Humic acids, sodium salt|Sodium salts humic acids|CH 02|Dolaflux|Humic Acid Sodium Salt.
What are the physical properties of Sodium humate?
Melting Point >300 °C(lit.)
Boiling Point 639.85°C[at 101 325 Pa]
Density 1.51[at 20℃]
Appearance Black crystalline powder
Color Black
Form Powder
Water Solubility Soluble in water (33.3 mg in 1 mL)
Log P -2.08 at 20℃
Which trade and regulatory codes apply to Sodium humate?
HS Code 39139000
Storage Class 13 - Non Combustible Solids
WGK (Germany) 3