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471038

Sigma-Aldrich

Lignosulfonic acid sodium salt

average Mw ~52,000, average Mn ~7,000

Sinónimos:

Sodium ligninsulfonate

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About This Item

Número de CAS:
8061-51-6
Número MDL:
MFCD00135572
Código UNSPSC:
12162002
NACRES:
NA.23
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Formulario

solid

mol peso

average Mn ~7,000
average Mw ~52,000

composición

Na, 8 wt. %

impurezas

4 wt. % reducing sugars
6 wt. %

solubilidad

H2O: soluble

cadena SMILES

[Na+].[Na+].[S](=O)(=O)([O-])CCCc1cc(c(cc1)OC(C[S](=O)(=O)O)Cc2c(c(ccc2)OC)[O-])OC

InChI

1S/C20H26O10S2.2Na/c1-28-18-7-3-6-15(20(18)21)12-16(13-32(25,26)27)30-17-9-8-14(11-19(17)29-2)5-4-10-31(22,23)24;;/h3,6-9,11,16,21H,4-5,10,12-13H2,1-2H3,(H,22,23,24)(H,25,26,27);;/q;2*+1/p-2

Clave InChI

YDEXUEFDPVHGHE-UHFFFAOYSA-L

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Categorías relacionadas

Aplicación

Dispersing agent for dyestuffs, wax emulsions, pigments, water treatment and cleaners.

Características y beneficios

Compatible with anionic and nonionic surfactants and wetting agents.

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
MKCV6960
0000226170
0000226168
0000226170
0000226168

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Qi Song et al.
Chemical communications (Cambridge, England), 48(56), 7019-7021 (2012-04-24)
We report a strategy for the catalytic conversion of lignosulfonate into phenols over heterogeneous nickel catalysts. Aryl-alkyl bonds (C-O-C) and hydroxyl groups (-OH) are hydrogenated to phenols and alkanes, respectively, without disturbing the arenes. The catalyst is based on a
Min Qiu et al.
PloS one, 7(4), e35906-e35906 (2012-05-05)
Some secondary metabolites from plants show to have potent inhibitory activities against microbial pathogens, such as human immunodeficiency virus (HIV), herpes simplex virus (HSV), Treponema pallidum, Neisseria gonorrhoeae, etc. Here we report that lignosulfonic acid (LSA), a polymeric lignin derivative
Xinping Ouyang et al.
Biomacromolecules, 12(9), 3313-3320 (2011-07-22)
Five sodium lignosulfonate (SL) fractions with narrow molecular weight distribution and known salt content were used as the polyanion to build up layer-by-layer self-assembly multilayers with poly(diallyldimethylammonium chloride) (PDAC) as polycation. It is interesting to find that the salt-free SL
Jaime Carrasco et al.
Journal of agricultural and food chemistry, 60(13), 3331-3340 (2012-03-08)
Iron chlorosis is a very common nutritional disorder in plants that can be treated using iron fertilizers. Synthetic chelates have been used to correct this problem, but nowadays environmental concerns have enforced the search for new, more environmentally friendly ligands
Xuebing Zhao et al.
Bioprocess and biosystems engineering, 35(6), 993-1004 (2012-01-19)
Microbial lipid produced using yeast fermentation with inexpensive carbon sources such as lignocellulosic hydrolyzate can be an alternative feedstock for biodiesel production. Several inhibitors that can be generated during acid hydrolysis of lignocellulose were added solely or together into the
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Questions

1–3 of 3 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  3. Hello. I would like to know where this lignin is extractred from. Is it same with other alkali lignin from pine tree? Also, what is its pH range?

    1 answer

    1. There is no information provided regarding what species this product is derived from, or regarding the type of lignin this includes (e.g., hardwood or softwood).

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