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H16752 Aldrich

Humic acid sodium salt

technical grade



Related Categories Building Blocks, Carbonyl Compounds, Carboxylic Acid Salts, Chemical Synthesis, Organic Building Blocks More...
grade   technical grade
mp   >300 °C(lit.)


Frequently Asked Questions

Frequently Asked Questions are available for this Product.


100 g in poly bottle


Humic acid sodium salt is suitable reagent used to study the hygroscopic growth of solid aerosol particles consisting of mixtures of ammonium sulfate, adipic acid and humic acid mixtures. It is suitable reagent used to study the phase transitions and hygroscopic growth of humic acid aerosols by Fourier transform infra-red (FTIR) spectroscopy and tandem differential mobility analysis (TDMA).

General description

Humic acid possess excellent complexing ability with heavy metal. Humic acid sodium salt acts as a proxy for humic-like substances that were identified as a major component of the isolated organic matter in the atmospheric aerosol.

Price and Availability

Laboratory Gloves
Safety & Documentation

Safety Information

Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Certificate of Origin

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option: http://www.sigmaaldrich.com/catalog/AdvancedSearchPage.do
What is the molecular weight of Product H16752, Humic acid sodium salt?
This product has a molecular weight range of 2,000-500,000.
What is the source of Product H16752, Humic acid sodium salt?
This product is the results from the decomposition of organic matter, particularly dead plants. It can be found in vegetable soil, peat, and/or soft coal.
What are the impurities present in Product H16752, Humic acid sodium salt?
Impurities are not determined for this product. The composition includeds polysaccharides, proteins, simple phenols, and chelated metal ions.
Is Product H16752, Humic acid sodium salt purified?
This product is of natural mined origin. The only purification step is washing with deionized water.
How do I find price and availability?
There are several ways to find pricing and availability for our products.  Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers. 
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS. To access the shipping information for this material, use the link on the product detail page for the product, or search here. 
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
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Peer-Reviewed Papers


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