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H16752

Sigma-Aldrich

腐植酸 钠盐

technical grade

同義詞:

叠氮化钠, 胡敏酸钠, 腐植酸钠

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About This Item

CAS號碼:
EC號碼:
MDL號碼:
分類程式碼代碼:
12352100
NACRES:
NA.22
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等級

technical grade

品質等級

mp

>300 °C (lit.)

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一般說明

腐植酸对于重金属具有很好的络合能力。[1]腐植酸钠盐作为腐殖酸底物代替物,是大气气溶胶中分离出的有机物质中的主要成分。[1]

腐植酸钠盐,也称腐殖酸钠,用于合成高吸水性材料(superabsorbent)。[2]

應用

腐植酸钠适合作为研究含有混合硫酸铵、己二酸和腐植酸混合物的固体气溶胶粒子吸湿生长的试剂。[1]它还适合于作为研究相变化,以及傅立叶变换红外光谱(FTIR)和串联微分迁移率分析(TDMA)腐植酸气溶胶吸湿生长的试剂。[3]

儲存類別代碼

13 - Non Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

dust mask type N95 (US), Eyeshields, Gloves


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Questions

1–7 of 7 Questions  
  1. What's the difference between Product 53680 and Product H16752?

    1 answer
    1. Product 53680 is the free acid form while product H16752 is the sodium salt form of humic acid. Humic acids are strongly acidic and naturally occurring. Humic acids exist predominantly in their salt form. Product H16752 is treated with HCl resulting in the purified free acid form, product 53680.

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  2. What is the chemical formula of the humic acid salt? is it C9H8O4Na2? If not, what is the percentage of carbon in the humic acid salt?

    1 answer
    1. Humic acid is a natural source material and exists in nature primarily as the sodium form. This is a technical grade product and in-depth analysis has not been performed, including carbon content. It is composed of a polycyclic core (mostly aromatic), loosely bound polysaccharides, proteins, phenols and chelated metal ions. The molecular weight can range from 2kDa - 500kDa, with the bulk being 20kDa - 50kDa. PubChem lists the formula as C9H8NA2O4. This would be the core formula.

      Please refer to the link below for additional information from PubChem, including 2D and 3D core structures:
      https://pubchem.ncbi.nlm.nih.gov/compound/21908873

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

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

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  4. What is the Department of Transportation shipping information for this product?

    1 answer
    1. 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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  5. What is the molecular weight of Product H16752, Humic acid sodium salt?

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

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  6. What are the impurities present in Product H16752, Humic acid sodium salt?

    1 answer
    1. Impurities are not determined for this product. The composition includeds polysaccharides, proteins, simple phenols, and chelated metal ions.

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  7. What is the source of Product H16752, Humic acid sodium salt?

    1 answer
    1. 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.

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