Cerium(III) chloride heptahydrate
Cerous chloride heptahydrate
CAS: 18618-55-8
Molecular Formula: CeCl3H14O7
Cerium(III) chloride heptahydrate - Names and Identifiers
| Name | Cerous chloride heptahydrate |
| Synonyms | Ceriumchloridehydrate cerium(3+) trichloride Cerous chloride heptahydrate Cerium(iii) chloride heptahydrate cerium(3+) trichloride heptahydrate |
| CAS | 18618-55-8 |
| EINECS | 606-073-0 |
| InChI | InChI=1/Ce.3ClH.7H2O/h;3*1H;7*1H2/q+3;;;;;;;;;;/p-3 |
Cerium(III) chloride heptahydrate - Physico-chemical Properties
| Molecular Formula | CeCl3H14O7 |
| Molar Mass | 372.58 |
| Density | ~3.94g/mLat 25°C(lit.) |
| Melting Point | 848 °C |
| Water Solubility | Soluble in alcohol, water, and acetone. Slightly soluble in tetrahydrofuran. |
| Solubility | Soluble in water and alcohol. |
| Appearance | Colorless crystal |
| Color | Light yellow |
| Merck | 14,1997 |
| Storage Condition | Inert atmosphere,Room Temperature |
| Stability | Stable, but may be moisture sensitive. Incompatible with strong acids, strong oxidizing agents. |
| Sensitive | Hygroscopic |
| MDL | MFCD00149634 |
| Physical and Chemical Properties | Cerium chloride, chemical formula cecl3. Molecular weight 246.48. Colorless crystals. Deliquescence. The melting point is 848 ℃, the boiling point is 1727 ℃, and the relative density is 3.920. Soluble in cold water (hot water decomposition), ethanol, acetic acid. With ammonia, strong alkali, ammonium oxalate, acid, sulfide reaction. It can be decomposed by oxygen or water vapor to form cerium oxide. Preparation Method: cerium carbonate dissolved in hydrochloric acid solution, evaporated to dryness, and the residue mixed with ammonium chloride, calcined in red heat, or by Cerium oxalate in hydrogen chloride gas stream, it can also be obtained from the oxide of cerium by ignition in a gas stream of carbon tetrachloride. Uses: cerium and cerium salt, and aluminum and magnesium as olefin polymerization catalyst, used as rare earth trace element fertilizer, can also be used in the treatment of diabetes, skin diseases and other drugs. |
| Use | Used as analytical reagents, catalysts |
Cerium(III) chloride heptahydrate - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| UN IDs | UN 3260 8 / PGIII |
| WGK Germany | 3 |
| RTECS | FK5100000 |
| FLUKA BRAND F CODES | 3-10-21 |
| TSCA | Yes |
| HS Code | 28461090 |
Cerium(III) chloride heptahydrate - Nature
Open Data Verified Data
colorless to yellow columnar crystals or white powder. Melting point 822 °c (anhydrous) l;d 3. 92 (anhydrous). Hygroscopic. Soluble in water, ethanol. Become anhydrous. Water began to be lost at 90 °c and became anhydrous at 230 °c. Cannot burn. By high heat decomposition of toxic gases.
Last Update：2024-01-02 23:10:35
Cerium(III) chloride heptahydrate - Preparation Method
Open Data Verified Data
cerium oxide was added to water and hydrochloric acid, and dissolved by heating, and chlorine gas evolved. After the reaction, the solution should be neutral or weakly acidic. After filtration, the filtrate was evaporated to a thick state with foaming. Then cooled to room temperature, Suction filtration crystallization, drying, cerium chloride.
Last Update：2022-01-01 09:01:28
Cerium(III) chloride heptahydrate - Introduction
Easy to absorb moisture. Water loss starts above 90 ℃ and becomes anhydrous at 230 ℃. Low toxicity, median lethal dose (rat, oral) 2111mg/kg. It's irritating.
Last Update：2022-10-16 17:14:35
Cerium(III) chloride heptahydrate - Use
Open Data Verified Data
used as an analytical reagent, a catalyst, and the preparation of cerium metal.
Last Update：2022-01-01 09:01:29
Cerium(III) chloride heptahydrate - Safety
Open Data Verified Data
mice, guinea pigs, intraperitoneal injection of LDso were 352mg/kg, L0 mg/kg. Has a stimulating effect. Little harm to the human body, stored in a cool, ventilated warehouse. Keep away from fire and heat source. Keep the container sealed. Prevent moisture and rain. It should be stored separately from oxidant, acids and edible chemical raw materials.
Last Update：2022-01-01 09:01:29
Cerium(III) chloride heptahydrate - Reference Information
| olfactory threshold (Odor Threshold) | Stinging odor |
| solubility in water (g/100ml) | dissolved grams per 100ml of water: 100g/20 ℃ |
| Use | Used as analytical reagent and catalyst Preparation of metal cerium and cerium salt. In olefin polymerization, it is used as a catalyst together with aluminum salt or magnesium salt; used to convert esters into allyl silanes. |
| production method | 1. add 350g of cerium dioxide to 100ml of water and 680ml of 36% hydrochloric acid, heat and dissolve, and chlorine gas escapes. After the reaction, the solution should be neutral or weakly acidic. After filtration, the filtrate is evaporated until it is thick and foaming. Then cool to room temperature, absorb and crystallize, and dry to obtain cerium chloride. 2. Smoked Ce(NO3)3 with concentrated hydrochloric acid, then reduced and recrystallized with H2O2 2mol/L HCl to obtain crystals with purity ≥ 99.9%. 3. Appropriate amount of oxide is dissolved in excess 2mol/L HCl, boiled and further concentrated, placed in a dry holder of anhydrous calcium sulfate for several weeks, and then crystals are precipitated. |
| spontaneous combustion temperature | 400°C |
Last Update：2024-04-09 20:52:54
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