CHROMIUM (III) 2-ETHYLHEXANOATE
1. Introduction to chromium isooctanoate
Chinese name: chromium isoctoate
English name: Chromic 2-ethylhexanoate
Constitutional formula ：
Alternative name: 2-ethylhexyl chromic acid
CAS RN：3444-17-5
Molecular formula: C24H45O6Cr
Molecular weight: 481.61
Flash point: 110℃ (chromium naphthenate solution)
Density: 1.01g/cm3 (20℃, chromium naphthenate solution)
Appearance: Blue asphalt-like solid (≥90% chromium naphthenate) or dark green liquid (≤90% chromium naphthenate).
Use: as a catalytic aid, paint and ink drying agent.
2. Quality Standards
This project is divided into two products according to the purpose, namely chromium isooctanoate drying agent and chromium isooctanoate catalyst, whose quality standards are shown in Table 1 and Table 2 respectively.
Table 1. Chromic oleate drying agent quality standard
| project | metric | bear fruit | remarks | |
| 1 | surface | Dark green uniform liquid | Dark green uniform liquid | |
| 2 | Chromium content,% | 7.8-8.2 | 8.0 | ICP |
| 3 | Hexosuccinic acid chromium content,% | ≥70 | 74.1 | numeration |
| 4 | Isobutyric acid content,% | ≤10 | 8.9 | Potentiometric acid-base titration |
| 5 | Oil-soluble | All dissolved | ||
| 6 | stability of solution | No precipitation |
Table 2. Chromium octanoate catalyst (hexene-1) quality standards
| project | metric | bear fruit | remarks | |
| 1 | surface | Green Liquid | Green Liquid | |
| 2 | Chromium content,% | ≥3 | 3.2 | ICP |
| 3 | Hexosuccinic acid chromium content,% | ≥31 | 33.0 | numeration |
| 4 | Isobutyric acid content,% | ≤4.3 | 3.96 | Potentiometric acid-base titration |
| 5 | Dynamic viscosity (70℃),mPa.S | ≤5.55 | 5.48 | viscometry |
| 6 | Hydrocarbon solvent content,% | ≤64 | 63.0 |
