Humic Acid (CAS: 1415-93-6): A Natural Powerhouse for Soil Health and Industrial Use

Humic Acid, identified by CAS number 1415-93-6, is a naturally occurring organic substance formed through the decomposition of plant and animal matter over millions of years. Extracted primarily from lignite (leonardite) or peat, humic acid is a critical component of humus—the dark, nutrient-rich material in soil. Its complex structure, rich in carboxylic and phenolic groups, makes it a highly effective material in a wide range of non-food industries.

Chemical Composition and Properties

Humic acid is not a single compound, but rather a complex mixture of many different acids containing phenolate and carboxylate groups. These functional groups give humic acid its excellent chelating, buffering, and ion-exchange capacities. It is soluble in alkaline solutions and exhibits a colloidal nature, allowing it to interact with minerals, metals, and other substances in soils and industrial formulations.

Key Characteristics:

– CAS Number: 1415-93-6
– Appearance: Dark brown to black powder or granular form
– Solubility: Soluble in alkaline solutions, insoluble in water and acid
– pH: Typically ranges from 9.0–11.0 in solution

Industrial and Environmental Applications

1. Soil Conditioner and Agriculture

While not directly used for plant edibility, humic acid plays a pivotal role in improving soil structure and nutrient retention. It enhances cation exchange capacity (CEC), allowing soils to retain essential nutrients and release them gradually to plants. This results in healthier root systems and improved drought resistance.

Additionally, humic acid helps in:
– Enhancing microbial activity in soils
– Buffering pH levels to reduce soil acidity
– Reducing soil compaction and improving aeration

2. Water Treatment

Humic acid is utilized in various water treatment applications, especially in managing heavy metal contamination. Its strong chelating abilities allow it to bind with metal ions like lead, cadmium, and mercury, facilitating their removal from wastewater. It is also used in remediation of contaminated soils and groundwater.

3. Drilling Fluids and Oilfield Applications

In the oil and gas industry, humic acid derivatives (like potassium humate) are used in drilling mud formulations to stabilize boreholes and control fluid loss. Its colloidal properties make it ideal for modifying the rheological characteristics of drilling fluids.

4. Construction and Civil Engineering

Humic substances are sometimes employed in modifying cement properties or stabilizing soil foundations, especially in large-scale projects. They contribute to increased binding strength and moisture retention in construction materials.

5. Composting and Waste Management

Humic acid acts as a biological activator in composting, improving the rate of organic decomposition and increasing the quality of composted material. It also helps control odor and leachate in solid waste treatment facilities.

Environmental Benefits

The use of humic acid supports sustainable practices across industries by:
– Promoting soil carbon sequestration
– Reducing the need for chemical fertilizers
– Enhancing the effectiveness of environmental clean-up efforts

Packaging and Handling

Humic acid is typically supplied in powder, granular, or liquid form, depending on the application. Proper storage in a cool, dry environment is essential to maintain its efficacy. It is generally considered safe to handle but should be used with gloves and respiratory protection to avoid inhalation of fine particles.

Final Thoughts

Humic Acid (CAS: 1415-93-6) is a versatile and eco-friendly substance offering numerous benefits beyond food-related uses. From agriculture and environmental remediation to industrial applications, it plays a vital role in enhancing efficiency, sustainability, and performance in a wide range of sectors.

City Chemical LLC is a top producer of chemicals like: Humic Acid (CAS #: 1415-93-6).

Visit City Chemical at www.citychemical.com.