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370959

Lignin, alkali

powder

Synonym(s):

Lignin, kraft, Lignin & lignosulfonates

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About This Item

CAS Number:
8068-05-1
UNSPSC Code:
12162002
NACRES:
NA.23
MDL number:
MFCD09039274
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Product Name

Lignin, alkali,

Quality Segment

100

description

surface tension 43 mN/m (1% aqueous)

form

powder

impurities

5% moisture

loss

13.4 wt. % loss on heating, @ 316°C, 3.3 wt. % loss on heating, @ 149°C, 5.7 wt. % loss on heating, @ 204°C, 8.5 wt. % loss on heating, @ 260°C

pH

6.5 (25 °C, 5%, aqueous solution)

transition temp

sintering point 188 °C

solubility

NaOH: 0.05% (warm 5% aquesous), MEK: partially soluble, benzene: insoluble, dioxane: soluble, ethylene glycol: soluble, hexane: insoluble, methanol: partially soluble

density

1.3 g/mL at 25 °C

bulk density

23 lb/cu.ft (loose), 32 lb/cu.ft (packed)

General description

Lignin, alkali is a complex, three dimensional polymer that is also known as kraft lignin that has undergone hydrolytic degradation. It is one of the major components of lignocellulosic materials. Lignin is a major product for second generation bioethanol production and is an impurity in the separation of cellulose from wood.

Application

Lignin, alkali can be used as a surface treatment agent for composites of natural fibers with petroleum based resins. It can be used as a biosorbent for potential applications in removing toxic metal ions from wastewater.

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Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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