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Merck
CN

370959

Sigma-Aldrich

碱木质素

别名:

牛皮木素

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About This Item

CAS号:
MDL编号:
UNSPSC代码:
12162002
NACRES:
NA.23

描述

surface tension 43 mN/m (1% aqueous)

质量水平

形式

powder

杂质

5% moisture

缺失

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(酸碱度)

6.5 (25 °C, 5%, aqueous solution)

转变温度

sintering point 188 °C

溶解性

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

堆积密度

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

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一般描述

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。

应用

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。

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)


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