370959

Lignin, alkali

• Synonyme(s) : Lignin, kraft
• CAS Number: 8068-05-1
• Numéro MDL: MFCD09039274
• Code UNSPSC : 12162002
• Nomenclature NACRES : NA.23

Propriétés

• Description: surface tension 43 mN/m (1% aqueous)
• Niveau de qualité: 100
• Forme: powder
• Impuretés: 5% moisture
• Perte: 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)
• Température de transition: sintering point 188 °C
• Solubilité: NaOH: 0.05% (warm 5% aquesous); MEK: partially soluble; benzene: insoluble; dioxane: soluble; ethylene glycol: soluble; hexane: insoluble; methanol: partially soluble
• Densité: 1.3 g/mL at 25 °C
• Masse volumique apparente: 23 lb/cu.ft (loose); 32 lb/cu.ft (packed)

Description

Description générale

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.

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Gloves, type N95 (US)