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Merck

370959

Sigma-Aldrich

碱木质素

别名:

牛皮木素

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About This Item

CAS号:
MDL號碼:
分類程式碼代碼:
12162002
NACRES:
NA.23

描述

surface tension 43 mN/m (1% aqueous)

品質等級

形狀

powder

雜質

5% moisture

損耗

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值

6.5 (25 °C, 5%, aqueous solution)

轉變溫度

sintering point 188 °C

溶解度

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

密度

1.3 g/mL at 25 °C

體積密度

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

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一般說明

碱性木质素是复杂的三维聚合物,也是发生水解降解的牛皮纸木质素。它是木质纤维素材料的主要成分之一。木质素是第二代生物乙醇生产的主要产物,是从木材中分离纤维素的杂质。

應用

碱性木质素可用作天然纤维与石油基树脂复合材料的表面处理剂。它可用作生物吸附剂,有望用于从废水中去除有毒金属离子。

儲存類別代碼

11 - 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

Eyeshields, Gloves, type N95 (US)


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Over the long term, soil carbon (C) storage is partly determined by decomposition rate of carbon that is slow to decompose (i.e., recalcitrant C). According to thermodynamic theory, decomposition rates of recalcitrant C might differ from those of non-recalcitrant C
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Bioresource technology, 268, 505-513 (2018-08-17)
Maximizing the production of aromatic hydrocarbons from lignin conversion by coupling methane activation without solvent was investigated over Zn-Ga modified zeolite catalyst. The co-loading of Zn and Ga greatly improves lignin conversion, arene yield along with BTEX (i.e., benzene, toluene
Shangxian Xie et al.
Advanced science (Weinheim, Baden-Wurttemberg, Germany), 6(13), 1801980-1801980 (2019-08-06)
Bacterial protein secretion represents a significant challenge in biotechnology, which is essential for the cost-effective production of therapeutics, enzymes, and other functional proteins. Here, it is demonstrated that proteomics-guided engineering of transcription, translation, secretion, and folding of ligninolytic laccase balances
Yong Sik Kim et al.
Biomacromolecules, 11(4), 981-988 (2010-03-02)
Copolymerization of N-isopropylacrylamide (NIPAM) with technical hardwood kraft lignin (HWKL) was achieved by atom transfer radical polymerization (ATRP) using a selectively modified lignin-based macroinitiator. The degree of polymerization (DP) of polyNIPAM graft side chains was affected by varying the ratio
Héctor Rodríguez et al.
Physical chemistry chemical physics : PCCP, 11(46), 10916-10922 (2009-11-20)
We have found that 1-alkyl-3-methylimidazolium chloride ionic liquids (ILs) can form immiscible liquid mixtures with some polyethylene glycols (PEGs). Binary mixtures of 1-ethyl-3-methylimidazolium chloride with PEG of molecular weight 1500, 2000, or 3400 g mol(-1), or of 1-butyl-3-methylimidazolium chloride with

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