Overview
Cobalt nitrate hexahydrate (CAS 10026-22-9 ), also known as cobaltous nitrate hexahydrate, is a water-soluble cobalt salt supplying bioavailable cobalt across agricultural, industrial, and specialty chemical applications.
It functions primarily as a cobalt source in catalyst preparation, micronutrient formulations, and surface treatment processes. In agriculture, it is incorporated into trace element fertilizers and animal feed supplements.
This product is used to correct cobalt deficiency in soils and livestock, particularly in ruminant nutrition programs. Catalyst manufacturers use it as a cobalt precursor in the production of hydroprocessing catalysts.
In Fischer-Tropsch catalysts, controlled cobalt loading is critical to performance. In the ceramics and pigment industries, it serves as a raw material for cobalt-based colorants applied to glass, glazes, and specialty coatings.
Pharmaceutical and nutraceutical formulators source it as a cobalt intermediate where precise metal content and low impurity profiles are required. Cobalt nitrate hexahydrate is supplied as red-pink crystalline granules or flakes.
Technical grade is the standard commercial form, with purity levels typically ranging from 98% to 99%+. Reagent and high-purity analytical grades are available for catalyst and pharmaceutical applications.
These specialized grades are designed for processes requiring tighter metal impurity specifications. The material ensures consistent performance across diverse industrial sectors and high-precision manufacturing environments.
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Physical Properties
| Melting Point | 55 °C |
| Density | 1.88 g/cm³ |
| Appearance | Red crystal, deliquescent in most air |
| Color | Red to pinkish-brown |
| Form | Wet Crystalline Aggregates |
| Water Solubility | 134 g/100 mL |
| Refractive Index | 1.52 |
| pH | 4.0 (100g/l, H2O, 20℃) |
Safety & Handling
Danger GHS08 GHS07 GHS05 Hazard Statements H302 H302 H314 H314 H317 H317 H334 H334 H350 H350 H351 H351 H360 H360 H372 H372 Precautionary Statements P203 P203 P233 P233 P260 P260 P261 P261 P264 P264 P270 P270 P271 P271 P272 P272 P280 P280 P284 P284 P316 P316 P318 P318 P319 P319 P321 P321 P330 P330 P363 P363 P403 P403 P405 P405 P501 P501 P301+P317 P301+P317 P302+P352 P302+P352 P304+P340 P304+P340 P333+P317 P333+P317 P342+P316 P342+P316 P362+P364 P362+P364 P301+P330+P331 P301+P330+P331 P302+P361+P354 P302+P361+P354 P305+P354+P338 P305+P354+P338
Trade & Regulatory
| HS Code | 28342920 |
| UN Number | 1477 |
| ADR Class | 5.1 |
| Packing Group | II |
| Storage Class | 5.1B - Oxidizing hazardous materials |
| WGK (Germany) | 2 |
Other Names
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Chemical Properties
- CAS Number
- 10026-22-9
- EC Number
- 233-402-1
- Mol. Weight
- 291.04
- HS Code
- 28342920
- Category
- Salts & Minerals