Chromium fluoride hydrate
chromium(iii) fluoride tetrahydrate
CAS: 123333-98-2
Molecular Formula: CrF3H8O4
Chromium fluoride hydrate - Names and Identifiers
| Name | chromium(iii) fluoride tetrahydrate |
| Synonyms | Chromium fluoride Chromium fluoride hydrate Chromic fluoride tetrahydrate chromic fluoride tetrahydrate chromium fluoride tetrahydrate Chromium(III) fluoride 4-hydrate Chromium(Ⅲ) fluoride tetrahydrate chromium(iii) fluoride tetrahydrate Chromium fluoride (CrF3), hydrate (9CI) |
| CAS | 123333-98-2 |
| EINECS | 629-572-5 |
| InChI | InChI=1/Cr.FH.4H2O/h;1H;4*1H2/q+3;;;;;/p-1 |
Chromium fluoride hydrate - Physico-chemical Properties
| Molecular Formula | CrF3H8O4 |
| Molar Mass | 181.05 |
| Melting Point | >1000°C |
| Water Solubility | Insoluble in water. |
| Appearance | Crystalline |
| Color | Green |
| Merck | 14,2223 |
| Sensitive | Hygroscopic |
| Use | Mordant for dye industry, wool anti-cavity, marble coloring and hardening, etc |
Chromium fluoride hydrate - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R34 - Causes burns |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. S28 - After contact with skin, wash immediately with plenty of soap-suds. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 1756 8/PG 2 |
| WGK Germany | 3 |
| TSCA | Yes |
| Hazard Class | 8 |
| Packing Group | II |
Chromium fluoride hydrate - Upstream Downstream Industry
| Raw Materials | Chromic Acid Hydrofluoric Acid |
Chromium fluoride hydrate - Nature
Open Data Verified Data
dark green crystalline powder. The relative density was 3.8. Melting point 1400 °c. Boiling point 1100~1200 ℃/sublimation, insoluble in alcohol, slightly soluble in acid, soluble in hydrofluoric acid, insoluble in water.
Last Update：2024-01-02 23:10:35
Chromium fluoride hydrate - Preparation Method
Open Data Verified Data
chromium hydroxide was added to the reactor containing distilled water, and hydrofluoric acid was slowly added to react with stirring to generate Chromium fluoride solution, which was concentrated by evaporation, cooled and crystallized, centrifuged and dried, finished Chromium fluoride was obtained.
Last Update：2022-01-01 11:01:13
Chromium fluoride hydrate - Use
Open Data Verified Data
used for dyeing wool in the printing and dyeing industry, mothproofing of wool fabrics. Halogenated catalyst, marble hardening and colorant. General reagents.
Last Update：2022-01-01 11:01:12
Chromium fluoride hydrate - Safety
Open Data Verified Data
Because of the low solubility of this product, the acute toxicity caused by chromium is low. Due to the decomposition of hydrogen fluoride and other toxic gases, we must pay attention to its toxicity, corrosive. Patients who inhale vapor should be removed from the contaminated area, placed to rest and kept warm. The eyes were washed with water for 15 min when they were stimulated. For skin contact, rinse with water and then wash thoroughly with soap. The patient was immediately sent to the hospital for treatment. See other chromic anhydride. Closed operation, strengthen ventilation. Operators must be specially trained and strictly follow the operating procedures. It is recommended that operators wear self-suction filter dust masks, wear safety full protection glasses, wear anti-corrosion work clothes and wear chemical-resistant gloves. Dust should be avoided. Avoid contact with acids. Handling should be light and light unloading, to prevent packaging and container damage. Emergency treatment equipment for leakage shall be provided. Harmful substances may remain in the empty container. Store in a cool, dry, ventilated warehouse, away from heat sources and fire. With oxidant, flammable and acids Isolation storage and transportation. Packaging and storage of polyethylene plastic bottles, each bottle of net weight lkg, or with polyethylene plastic bags lined with iron drum packaging, net weight 25kg per barrel, the package has a clear "corrosion products" signs. Risk code: other corrosion products. GB 8.3 class 83002. UN No. 1757 (solids), 8145 (liquids);IMDG CODE, P. 8.2, category 1. When a fire occurs, fire is extinguishing with water, foam and carbon dioxide, and dry sand.
Last Update：2022-01-01 11:01:13
Chromium fluoride hydrate - Reference Information
| Application | mordant for dye industry, wool mothproofing agent, marble coloring and hardening agent, etc used as mothproofing agent, fluoride, also used in wool dyeing mordant for dye industry, wool anti-cavity, marble coloring and hardening |
Last Update：2024-04-10 22:29:15
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Raw Materials for Chromium fluoride hydrate