Ammonium iron(II) sulfate
Ferrous ammonium sulfate
CAS: 10045-89-3
Molecular Formula: FeH8N2O8S2
Ammonium iron(II) sulfate - Names and Identifiers
Ammonium iron(II) sulfate - Physico-chemical Properties
| Molecular Formula | FeH8N2O8S2 |
| Molar Mass | 284.05 |
| Density | 1.865 |
| Melting Point | 100 °C |
| Water Solubility | g/100g H2O: 12.5 (0°C), 17.2 (10°C), 26.4 (20°C), 33 (30°C), 46 (40°C); insoluble alcohol [MER06] [LAN05] |
| Appearance | Liquid |
| Color | pale green |
| Merck | 13,523 |
| Physical and Chemical Properties | Light blue-green transparent monoclinic crystal. The relative density was 1.864. 100 -- decomposition at 110 ℃. Soluble in water (20 deg C 26.9g/100 ml water; 80 deg C. 73.0g/100 ml water). Insoluble in alcohol. Stable at room temperature, see light decomposition. |
| Use | Standard solution for calibration of potassium permanganate and potassium dichromate |
Ammonium iron(II) sulfate - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R35 - Causes severe burns |
| Safety Description | S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S30 - Never add water to this product. |
| UN IDs | UN 2796 8/PG 2 |
Ammonium iron(II) sulfate - Upstream Downstream Industry
| Raw Materials | Sulfuric acid Ammonium sulfate Ferrous sulfate Iron |
Ammonium iron(II) sulfate - Nature
Open Data Verified Data
light blue-green monoclinic crystal or crystalline powder. di0 1. 86. In the air can be gradually oxidized and weathered. About 100 to 110 degrees C decomposition. Soluble in water, insoluble in ethanol.
Last Update：2025-06-10 22:55:16
Ammonium iron(II) sulfate - Preparation Method
Open Data Verified Data
ferrous sulfate and ammonium sulfate were each dissolved in a small amount of water. Each was heated to 60-70 °c and then poured into a porcelain dish. Acidification with a small amount of sulfuric acid and cooling with constant stirring. The crystals were filtered off with suction and washed with 50% ethanol to obtain pure ammonium ferrous sulfate.
Last Update：2025-06-10 22:55:16
Ammonium iron(II) sulfate - Application
Open Data Verified Data
ferrous ion standards are commonly used in analytical assays. For the calibration of potassium permanganate and potassium dichromate standard solution. Also used as a polymerization catalyst, dosimeter.
Last Update：2025-08-19 16:24:40
Ammonium iron(II) sulfate - Safety
Open Data Verified Data
rat oral LD50:3.25g/kg. Low toxicity, irritating. Packed in hemp or plastic woven bags lined with polyethylene plastic bags, each with a net weight of 30kg or 45kg. Should be stored in a cool, dry warehouse. The packaging should be sealed. Transport should be protected from rain and sun exposure. When there is a fire, it can be saved by pouring water.
Last Update：2025-06-10 22:55:16
Ammonium iron(II) sulfate - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | is used in analytical chemistry to prepare ferrous ion standard solutions. It is also used for the printing of the printed version of the coating, in order to extend the service life of the word. Also used in medicine, electroplating, etc. standard solution for calibration of potassium permanganate and potassium dichromate |
| production method | synthesis method ammonium sulfate and ferrous sulfate are dissolved in hot water, and then human sulfuric acid is added, filtered, concentrated, crystallized, by centrifugal separation, ferrous ammonium sulfate was prepared. FeSO4? 7H2O (NH4)2SO4 → FeSO4? (NH4)2S04? 6H2O H2O |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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