Ammonium cobalt(II) sulfate hexahydrate
- CAS NO.：13586-38-4
- Empirical Formula: CoH20N2O14S2
- Molecular Weight: 395.23
- MDL number: MFCD00151049
- EINECS: 628-953-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-10-17 17:11:53
What is Ammonium cobalt(II) sulfate hexahydrate?
Description
From aqueous solutions the orange-pink heptahydrate CoSO4.7H2O crystallizes ; this is isomorphous with FeSO4.7H2O. Crystallization at 30° or by heating the heptahydrate at 41.5° yields the orange-red hexahydrate ; the monohydrate is formed above 70° and the anhydrous sulphate above 250°. This cubic anhydrous salt decomposes at 735° ; it is less deliquescent than the chloride or nitrate and is the salt used for many commercial purposes. Its solubility in water (about 36 g CoSO4 in 100 g H2O at 20°) increases with temperature ; it is insoluble in alcohol. The hydrates are magnetically dilute, having magnetic moments around 4.75 B.M. at room temperature.
Chemical properties
Reddish Crystal
The Uses of Ammonium cobalt(II) sulfate hexahydrate
Ammonium cobalt(II) sulfate hexahydrate is uses as spectroscopic standard, cobalt plating, catalysis and ceramics. It is also used in pharmaceutical intermediates.
Properties of Ammonium cobalt(II) sulfate hexahydrate
| Melting point: | 120 °C (dec.)(lit.) |
| Density | 1.902 g/mL at 25 °C(lit.) |
| solubility | soluble in H2O; insoluble in ethanol |
| form | Crystalline |
| color | Pink to red |
| Water Solubility | Soluble in water, Insoluble in alcohol |
| Sensitive | Hygroscopic |
| Exposure limits | ACGIH: TWA 0.02 mg/m3 |
Safety information for Ammonium cobalt(II) sulfate hexahydrate
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H317:Sensitisation, Skin H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for Ammonium cobalt(II) sulfate hexahydrate
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