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Merck
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主要文件

H16752

Sigma-Aldrich

腐植酸 钠盐

technical grade

别名:

叠氮化钠, 胡敏酸钠, 腐植酸钠

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500 G
¥900.34
2.5 KG
¥1,924.12

¥900.34

预计发货时间2025年4月22日详情

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500 G
¥900.34
2.5 KG
¥1,924.12

About This Item

CAS号:
68131-04-4
EC 号:
268-608-0
MDL编号:
MFCD00135560
UNSPSC代码:
12352100
NACRES:
NA.22

¥900.34

预计发货时间2025年4月22日详情

获取大包装报价

等级

technical grade

mp

>300 °C (lit.)

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此商品
902179102379102392
Calcium chloride anhydrous granules Reag. Ph Eur

102378

Calcium chloride

Calcium chloride anhydrous, granular, ≤7.0 mm, free-flowing, Redi-Dri™, ReagentPlus®, ≥93%

902179

Calcium chloride

Calcium chloride anhydrous, granular ~ 1-2 mm

102379

Calcium chloride

Calcium chloride anhydrous, granular ~ 6 - 14 mm

102392

Calcium chloride

assay

≥98.0%

assay

≥93%

assay

≥95.0% (complexometric)

assay

~90% (complexometric)

Quality Level

200

Quality Level

-

Quality Level

200

Quality Level

200

density

2.15 g/cm3 at 20 °C

density

-

density

2.15 g/cm3 at 20 °C

density

2.15 g/cm3 at 20 °C

impurities

≤0.2% Free alkali (as Ca(OH)2)

impurities

-

impurities

≤0.2% Free alkali (as Ca(OH)2)

impurities

≤0.2% Free alkali (as Ca(OH)2)

pH

8-10 (20 °C, 100 g/L in H2O)

pH

-

pH

8-10 (20 °C, 100 g/L in H2O)

pH

8-10 (20 °C, 100 g/L in H2O)

一般描述

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]

应用

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]

储存分类代码

13 - Non Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

dust mask type N95 (US), Eyeshields, Gloves

  • 技术规格说明书

    • 历史批次信息供参考:

    分析证书(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.

    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. 

    9. My question is not addressed here, how can I contact Technical Service for assistance?

      Ask a Scientist here.

    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)
    Ralf Kautenburger et al.
    Electrophoresis, 38(6), 930-937 (2016-12-07)
    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
    S Daguerre-Martini et al.
    Water research, 137, 201-210 (2018-03-20)
    Gas-permeable membranes coupled with low-rate aeration is useful to recover ammonia (NH4+) from livestock effluents. In this study, the role of inorganic carbon (bicarbonate, HCO3-) to enhance the N recovery process was evaluated using synthetic effluents with various NH4+ to
    David Amaya-Vías et al.
    Water research, 158, 182-192 (2019-04-30)
    Desalination and water reuse are important means to resolve local water scarcity and security issues worldwide where membrane distillation (MD) may be part of a solution. Natural organic matter and in particular, humic acids (HA), are widely present in water
    Tangui Léziart et al.
    Environmental technology, 40(13), 1734-1743 (2019-02-20)
    Chlorine is globally the most widely used chemical for water disinfection. Whereas disinfection efficiency is well known to depend on water pH and temperature, the effect of turbidity is less well studied. Although turbidity is measured online in most drinking
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