Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
100% Pure Castor Oil ACS Grade
ACS Grade · 100%
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS number
- 8001-79-4
- Structure
Structure · PubChem - Grade
- ACS Grade · 100%
- Assay specification
- NLT 90.0% of the triglyceride of ricinoleic acid
- Answer summary
Sample specification reference for 100% Pure Castor Oil ACS Grade. Source-record results are reference values, not measurements for your lot.
Last reviewed 2026-06-17 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
Specifications
| Parameter | Specification | Source reference result | Test Method |
|---|---|---|---|
| Assay (triglyceride of ricinoleic acid) | NLT 90.0% of the triglyceride of ricinoleic acid | 99.7 % | USP <401> / GC of fatty acid methyl esters |
| Acid Value | NMT 2.0 | 0.39 | USP <401> Fats and Fixed Oils, Procedures, Acid Value |
| Composition of fatty acids — Ricinoleic acid | 85.0–92.0 | 88.2 | GC, USP Fats and Fixed Oils <401> |
| Free Fatty Acids | To Pass Test | Passes test | Titration |
| Heavy Metals | 10 mg/kg | 1.4 mg/kg | Colorimetric heavy metals limit test |
| Hydroxyl Value | 160–168 | 165 | USP <401> Fats and Fixed Oils, Procedures, Hydroxyl Value |
| Iodine Value | Between 83 and 88 | 86.1 | Wijs (g I2/100 g) |
| Lead | Not more than 0.1 mg/kg | 0.016 mg/kg | FCC lead limit test / ICP-MS |
| Peroxide Value | NMT 10.0 | 1.6 | USP <401> Fats and Fixed Oils, Procedures, Peroxide Value |
| Saponification Value | Between 176 and 185 | 180.4 | Titration (mg KOH/g) |
| Specific Gravity | 0.957–0.961 | 0.959 | USP <841> |
| Unsaponifiable Matter | NMT 0.8% | 0.42 % | USP <401> Fats and Fixed Oils, Procedures, Unsaponifiable Matter |
| Water | NMT 0.3% | 0.104 % | USP <921> |
| Refractive Index @ 25 °C | 1.477 - 1.481 | 1.479 | Abbe refractometer, AOCS Cc 7-25 |
| Color (Gardner) | NMT 2 | 1 | AOCS Td 1a-64 / ASTM D1544 |
| Arsenic (as As) | NMT 1 mg/kg | 0.050 mg/kg | ICP-MS, USP <233> |
Specification limits and source-record results are reproduced from the current product reference used by the TDS. This sample is not an issued certificate and does not identify a tested lot. Contact Alliance Chemical with the product and lot number for lot-specific documentation.
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