CALCIUM (II) NITRATE, HYDROUS
Calcium nitrate tetrahydrate
CAS: 13477-34-4
Molecular Formula: Ca(NO3)2 4H2O
CALCIUM (II) NITRATE, HYDROUS - Names and Identifiers
| Name | Calcium nitrate tetrahydrate |
| Synonyms | Calcium nitrate 4H2O Calcium nitrate hydrate Calcium nitrate, 4-hydrate Calcium nitrate tetrahydrate calciumdinitratetetrahydrate CALCIUM (II) NITRATE, HYDROUS |
| CAS | 13477-34-4 |
| EINECS | 233-332-1 |
| InChI | InChI=1/Ca.NO3.4H2O/c;2-1(3)4;;;;/h;;4*1H2/q+2;-1;;; |
CALCIUM (II) NITRATE, HYDROUS - Physico-chemical Properties
| Molecular Formula | Ca(NO3)2 4H2O |
| Molar Mass | 236.14 |
| Melting Point | 45℃ |
| Water Solubility | 1470 g/L (0℃) |
| Physical and Chemical Properties | Solubility: H2O: 1 M at 20 °c, clear, colorless storage conditions: Store at RT. sensitivity: hygropic WGK Germany:1 RTECS:EW3000000 |
CALCIUM (II) NITRATE, HYDROUS - Risk and Safety
| Hazard Symbols | O - Oxidizing agent Xi - Irritant  |
| Risk Codes | R36 - Irritating to the eyes R8 - Contact with combustible material may cause fire |
| Safety Description | S17 - Keep away from combustible material. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S39 - Wear eye / face protection. |
| UN IDs | UN 1454 |
CALCIUM (II) NITRATE, HYDROUS - Introduction
Nature:
1. It is a white crystalline solid.
2. It easily dissolves in water at room temperature, forming an alkaline solution.
3. Calcium nitrate (tetrahydrate) is an important calcium nitrate salt commonly used as fertilizer, fuel additive, and refrigerant.
Usage:
1. Industrial field: used as a metal surface treatment agent, pyrotechnic fuel, fire retardant, and concrete additive.
2. Refrigerant: Calcium nitrate solution can be used as the working fluid for refrigeration systems.
Method:
The preparation method of calcium nitrate (tetrahydrate) is usually achieved by reacting nitric acid with calcium carbonate to obtain: CaCO3+2HNO3 → Ca (NO3) 2+CO2+H2O.
Security information:
1. It has a certain degree of danger and should pay attention to protective measures.
2. Avoid contact with organic matter, avoid swallowing or inhaling.
3. Long term contact may cause skin allergic reactions.
4. Protective gloves and glasses should be worn during handling.
5. Store in a sealed, cool, and well ventilated environment.
Last Update：2024-06-06 11:40:44
CALCIUM (II) NITRATE, HYDROUS - Nature
Open Data Verified Data
colorless crystals. Deliquescence. Melting point of 45 deg C; D1860. Soluble in water, ethanol, methanol, acetone, almost insoluble in nitric acid. The pH of the 5% aqueous solution (on an anhydrous basis) was 6.0. Strong oxidant. Thermal decomposition, release of oxygen. Mixing with reducing agents, organics, combustibles such as sulfur, phosphorus, or metal powders, etc., can form explosive mixtures. Combustion decomposition, the release of toxic nitrogen oxide gas. By high heat decomposition, produce toxic nitrogen oxides.
Last Update：2025-06-10 22:55:16
CALCIUM (II) NITRATE, HYDROUS - Preparation Method
Open Data Verified Data
The powdered calcium hydroxide was added in small portions to the ammonium nitrate solution, heated and continuously stirred, and the heating was stopped when the weak ammonia odor was just eliminated. After filtration, nitric acid was added dropwise to the filtrate until the filtrate was weakly acidic. Heating to 40~50 C, and then filtered, the filtrate was concentrated, and a little calcium nitrate tetrahydrate was added as a seed crystal, cooled to room temperature, and the crystal was suction filtered, that is, calcium nitrate tetrahydrate.
Last Update：2025-06-10 22:55:16
CALCIUM (II) NITRATE, HYDROUS - Application
Open Data Verified Data
analysis reagent for detecting sulfate and oxalate. For the preparation of basic culture medium, pyrotechnic materials.
Last Update：2025-08-19 16:24:40
CALCIUM (II) NITRATE, HYDROUS - Safety
Open Data Verified Data
rat oral LDso:3900mg/kg. The eyes, skin irritation, inhalation of dust, the nose, throat and respiratory tract irritation, causing Cough and chest discomfort. It is strictly prohibited to mix with acids, flammable substances, organic substances, reducing agents, spontaneous combustion substances and wet flammable substances.
Last Update：2025-06-10 22:55:16
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