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Key Documents

H16752

Sigma-Aldrich

Humic acid sodium salt

technical grade

Synonym(s):

Humic acid Na salts, Sodium humates, Sodium salts humic acids

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About This Item

CAS Number:
68131-04-4
EC Number:
268-608-0
MDL number:
MFCD00135560
UNSPSC Code:
12352100
NACRES:
NA.22

grade

technical grade

Quality Level

100

mp

>300 °C (lit.)

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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.

Humic acid sodium salt, also known as sodium humate is used to synthesize superabsorbents.

Application

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).

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
SDBB1544
STBL1737
STBK4947
STBK1706
STBJ7326

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  1. 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.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. What is the molecular weight of Product H16752, Humic acid sodium salt?

    This product has a molecular weight range of 2,000-500,000.

  4. 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.

  5. 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.

  6. Is Product H16752, Humic acid sodium salt purified?

    This product is of natural mined origin. The only purification step is washing with deionized water.

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    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.

  8. 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. 

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