Specialty Additives Available — Bulk Only

Humic Acid

HA
CAS 1415-93-6

A leonardite-derived humic substance that conditions soils and controls fluid loss and rheology in water-based drilling systems. It is used as an agricultural soil amendment that raises cation-exchange and water-holding capacity, as a fluid-loss-control and deflocculating additive in water-based drilling muds, and as a sorbent in water treatment.

Safety Data Sheet
CAS Number
1415-93-6
Material Family
Specialty Additives
At a Glance
Material Family
Specialty Additives
Record Type
UVCB
Primary Role
Conditioning · Chelation / Sequestration
Functional Roles
HUMIC ACIDS
SKIN CONDITIONING
Applications & Use Cases
  • Agriculture: Soil amendment raising cation-exchange and water-holding capacity
  • Drilling fluids: Fluid-loss-control and deflocculating additive for water-based muds
  • Water treatment: Sorbent for metals and organics
  • Foundry: Additive in green-sand systems
Physical Properties
physical_state
Solid (typical)
appearance
Dark brown to black amorphous powder, granules, or flakes (typical)
odor
Odorless to faintly earthy (typical)
water_solubility
Insoluble in water and acids in the free-acid form; soluble in dilute alkali, forming soluble humate salts (typical)
ph
Acidic in free-acid form (typ. ~4-6); alkali humate solutions typ. ~8-10 (typical)
bulk_density
Approx. 0.4-0.8 g/cm3 for powder (typical)
carbon_content
Approx. 50-60 wt% organic carbon (typical)
thermal_behavior
No defined melting point; chars and decomposes on heating (typical)
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

Chemical Identity
CAS Number
1415-93-6
INCI Name
HUMIC ACIDS
Synonyms & Trade Names
Humic acids Humus acid Leonardite humic acid Lignite humic acid Brown coal humic acid Humic acid powder
Full Description

Humic acid (CAS 1415-93-6) is a UVCB humic substance typically derived from leonardite or lignite. It is used as an agricultural soil amendment that raises cation-exchange and water-holding capacity, as a fluid-loss-control and deflocculating additive in water-based drilling muds, and as a sorbent in water treatment.

Frequently Asked Questions

What is humic acid used for?

Humic acid (CAS 1415-93-6) is a UVCB humic substance typically derived from leonardite or lignite. It is used as an agricultural soil amendment that raises cation-exchange and water-holding capacity, as a fluid-loss-control and deflocculating additive in water-based drilling muds, as a sorbent in water treatment, and as an additive in foundry green-sand systems.

What does humic acid do in soil?

As a soil amendment it raises cation-exchange capacity and water-holding capacity, improving nutrient retention and soil structure. It is applied as a conditioning input rather than a direct nutrient source.

What is humic acid made from?

Industrial humic acid is typically extracted from leonardite or lignite — oxidized, low-grade coal sources rich in humic substances. As a UVCB material its exact composition varies with feedstock and processing.

What grades or forms of humic acid does RawSource supply?

Humic acid is supplied in bulk for agricultural, drilling-fluid, and water-treatment use; form and active content vary by source. Specify your application and required active percentage when requesting a quote, and a CoA will confirm the lot specification.

What bulk packaging and MOQ apply to humic acid?

RawSource supplies humic acid in bulk bags, drums, or totes depending on form. MOQ, lead time, and pricing are quote-based — request a bulk quote with your target volume and an SDS and CoA accompany the order.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.