Naphthenic Acid

Naphthenic acid
1. Description
1). clear yellowish to the brown liquid of oil
2). naphthenic acid is the name for an unspecific mixture of several cyclopentyl and cyclohexyl carboxylic acids with molecular weight of 120 to well over 700 au. The main fraction are carboxylic acids with a carbon backbone of 9 to 20 carbons. The naphtha fraction of the crude oil refined is oxidized and yields naphthenic acid. The composition differs with the crude oil composition and the conditions during refined and oxidation.
2. Applications
naphthenic acids are used successfully in:
1). Coating driers naphthenic acids metal salts are added to paints and inks to accelerate drying
2). Fuel & lubricants
3). Textile & fabric care
4). Rubber & tire manufacturing
5). Polymers & tire manufacturing
6). Metal working
7). Wood treating
8). Asphalt & concrete
3. Specification (crude, semi-refined and refined acid number from 100 to 260)
item 260# 250# 240# 230# 220# 210# 200# 190#
crude acid value 250-260 240-250 230-240 220-230 210-220 200-210 190-200 180-190
content % 92 92 92 90 88 88 88 88
colour 4 5 7 7 8 8 9 10
unsaps content % 2 2 5 5 5 7 7 7
flash point 75℃ - 45℃
viscosity 30 - 360 mm2s
density(20 ℃) 0.91 - 0.96 gcm3 (15℃)
moisture% ≤1
item 260# 250# 240# 230# 220# 210#
crude acid value 250-260 240-250 230-240 220-230 210-220 260
content % 92 92 92 90 88 88
colour 4 5 7 7 8 8
unsaps content % 2 2 5 5 5 10
flash point 75℃ - 45℃
viscosity 30 - 360 mm2s
density(20℃) 0.91 - 0.96 gcm3 (15℃)
moisture% ≤1
4.packaging:
190kgs drum