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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).

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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.

  7. 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.

  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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For the safe long-term storage of high-level radioactive waste (HLW), detailed information about geo-chemical behavior of radioactive and toxic metal ions under environmental conditions is important. Natural organic matter (NOM) can play a crucial role in the immobilization or mobilization
Hygroscopic growth and water uptake kinetics of two-phase aerosol particles consisting of ammonium sulfate, adipic and humic acid mixtures.
Sjogren S, et al.
Journal of Aerosol Science, 38(2), 151-171 (2007)
Synthesis and characterization of chitosan-g-poly (acrylic acid)/sodium humate superabsorbent
Liu J, et al.
Carbohydrate Polymers, 70, 166-173 (2007)
Qi Zhao et al.
Chemosphere, 256, 127021-127021 (2020-05-22)
The effect of gamma-irradiation doses of 0, 10, 100, and 500 kGy at the dose rates of 1 or 0.1 kGy/h on the molecular and chemical properties of humic substances (HS) were investigated using total organic carbon measurements, UV-Vis spectrometry, 13C nuclear magnetic
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Removal of micropollutants from reverse osmosis (RO) brines of wastewater desalination by oxidation processes is influenced by the scavenging capacity of brines components, resulting in the accumulation of transformation products (TPs) rather than complete mineralization. In this work the iodinated
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