Gum Rosin Ww Grade CAS 8050-09-7 Quality Product

• Type: Résine de Colophane
• Grade: Année spéciale
• Usage: Industrie , Auxiliaire d′Enduit, Traitement des Aliments, Fabrication de Papier , Éclairage , Médecine Chinoise , Produit Chimique de Traitement de l′Eau , Auxiliaire Textile
• Emballage: Tambour
• Méthode de traitement: Drip Méthode
• Couleur: Jaune
• N° de Modèle.: 8050-09-7
• pureté: 96 %
• Paquet de Transport: Drum
• Spécifications: 220kg/drum
• Marque Déposée: hongfeng
• Origine: Chine
• Code SH: 100000000
• Capacité de Production: 3806101000

Description de Produit

Product Description

Gum Rosin, also called colophony or Greek pitch, is a solid form of resin obtained from pines and some other plants, mostly conifers, produced by heating fresh liquid resin to vaporize the volatile liquid terpenecomponents. It is semi-transparent and varies in color from yellow to black. At room temperature rosin is brittle, but it melts at stove-top temperatures. It chiefly consists of different resin acids, especially abietic acid.

Grade	X	WW	WG	N	M	K
Appearance	Transparent Solid
Color	slightly yellow	pale yellow	yellow	deep yellow	yellow brown	yellow red
	Correspond to the Standard Glass Color Piece of Rosin
Softening Point (R&B),°C, min	76		75		74
Acid Value, (mgKOH/g), min	166		165		164
Alcohol insoluble Substance ,(%) , max	0.03		0.03		0.04
Unsaponifiable matter, (%) ,max	5		5		6
Ash, (%) ,max	0.02		0.03		0.04

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