Molekula
Humic acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Humic acid is a naturally occurring organic compound derived from decomposed plant and microbial matter, widely used in agriculture, environmental remediation, and soil conditioning to enhance nutrient availability and soil structure. It is available in powder and liquid forms, with a CAS number of 1415-93-6, stable under ambient storage conditions, and carries no signal word. Molekula supplies humic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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5 g — £30.90 per pack ex VAT · £37.08 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Gray -black solid |
| Water | ≤ 15.0 % |
| pH | 3.5 to 6 |
| Particle Size | ≤ 5.0 |
| Total Humic Acid (on dry basis) | ≥ 65.0 % |
| Organic matter (dry basis) | ≥ 80.0 % |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 89981884 |
| CAS Number | 1415-93-6 |
| SMILES | C1C2C=CC1C(C2C(=O)O)(C(=O)O)[N+](=O)[O-] |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 3105.90.0050 |
| Tariff Code | 3105908090 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is humic acid used for?
Humic acid is commonly used in agriculture as a soil conditioner to improve nutrient uptake and soil structure, and in environmental applications for heavy metal remediation.
What is the chemical formula and molecular weight of humic acid?
The exact formula and molecular weight of humic acid vary due to its complex, heterogeneous nature; it is not a single compound but a mixture of organic acids.
How should humic acid be stored?
Humic acid should be stored at ambient temperature, protected from moisture and direct sunlight.
What grade of humic acid does Molekula supply?
Molekula supplies humic acid in technical grade, suitable for industrial and agricultural applications.
Can Molekula supply humic acid in bulk?
Yes, Molekula can supply humic acid in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a humic acid order?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS); additional documentation can be provided upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.