Chromium(III) fluoride CAS# 7788-97-8
Chromium(III) fluoride CAS# 7788-97-8, Promotion Season Now in Store and Free Sample for Testing with Factory Price
- Appearance: Green powder or crystal
- Assay: 99. 00%
- Packaging: 25kg/fiber drum
- Sample: Available
Chromium(III) fluoride: The Complete Guide
- Chapter 1: Quality Control of Chromium(III) fluoride
- Chapter 2: Description of Chromium(III) fluoride
- Chapter 3: Basic Info of Chromium(III) fluoride
- Chapter 4: What is Chromium(III) fluoride?
- Chapter 5: What’s the application of Chromium(III) fluoride?
- Chapter 6: Keywords of Chromium(III) fluoride
- Chapter 7:WHY THEY SAY TO US
- Chapter 8: Hot Sale Products
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Quality Control of Chromium(III) fluoride
Quality Control & MSDS
Chemical Structure
Packing of Chromium(III) fluoride
Description of Chromium(III) fluoride
Chromium(III) fluoride is the name for the inorganic compounds with the chemical formula CrF3 as well as several related hydrates. The compound CrF3 is a green crystalline solid that is insoluble in common solvents, but the coloured hydrates [Cr(H2O)6]F3 and [Cr(H2O)6]F3•3H2O are soluble in water. The trihydrate is green, and the hexahydrate is violet. The anhydrous form sublimes at 1100–1200°C.
Basic Info of Chromium(III) fluoride
Basic Info
Chemical Name | Chromium(Iii) Fluoride |
Synonyms | chromium(3+),trifluoride; |
CAS No. | 7788-97-8 |
Molecular Formula | CrF3 |
Molecular Weight | 108.99100 |
PSA | 0.00000 |
LogP | -8.98800 |
Safety Info
RTECS | GB6125000 |
Hazard Class | 8 |
Safety Statements | S26; S27; S28; S36/37/39; S45 |
Packing Group | II |
WGK Germany | 3 |
RIDADR | UN 1756 8 |
Risk Statements | R20/21/22 |
Symbol | GHS05, GHS07 |
Supplemental Hazard Statements | Contact with water liberates toxic gas. |
Caution Statement | P260; P280; P301 + P312 + P330; P303 + P361 + P353; P304 + P340 + P310; P305 + P351 + P338 + P310 |
Signal Word | Danger |
Hazard Declaration | H302 + H312 + H332; H31 |
Properties
Appearance & Physical State | green pwdr. |
Density | 3.8 g/mL at 25ºC(lit.) |
Boiling Point | 19.5ºC at 760 mmHg |
Melting Point | 1000ºC |
Numbering system
UNII | YK57ASE6UA |
What is Chromium(III) fluoride?
With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Chromium(III) fluoride which has developed particularly rapidly in recent years. Do you know about Chromium(III) fluoride?
The official answer: Chromium trifluoride (CrF3) has a molecular weight of 109.01, a green powder or crystalline appearance, a boiling point of 1100-1200°C, and a melting point greater than 1000°C. It is insoluble in water, insoluble in alcohol, slightly soluble in acid, and soluble in hydrofluoric acid. Relative density (water=1) is 3.78.Low solubility, low acute toxicity caused by chromium. Due to the decomposition to generate toxic gases such as hydrogen fluoride, it must be noted that it is toxic and corrosive. Patients who inhale the vapor should be removed from the contaminated area, placed at rest, and kept warm. If eyes are irritated, rinse with water for 15 min. rinse with water and wash thoroughly with soap if skin contact occurs. Rinse the mouth immediately if accidentally ingested, and send to hospital urgently for treatment.
What’s the application of Chromium(III) fluoride?
Dyeing of wool, moth-proofing of woolen fabrics. Halogenated catalyst . Marble hardening and coloring agent. General reagent. Used as the catalyst, colorant, etc.
Synthesis method:
Chromium hydroxide is added to a reactor containing distilled water, heated under stirring, and slowly added to hydrofluoric acid for reaction to produce chromium fluoride solution, which is evaporated and concentrated, cooled, and crystallized, centrifuged and separated, and dried to produce finished chromium fluoride. The chemical equation is.
Cr(OH)3+3HF→CrF3+3H2O
Emergency treatment and disposal method:
Ⅰ. Leakage emergency treatment
Isolate the leaking contaminated area and restrict access. It is recommended that emergency personnel wear self-absorbing filtered dust masks and anti-acid and alkaline work clothes. Do not touch the spill directly. The small amount of leakage: avoid dust, collected in a dry, clean, covered container with a clean and clear shovel. Large spills: Cover with plastic sheeting and canvas to reduce fly-away. Then collect and recycle or transport to waste disposal sites for disposal.
Ⅱ. protective measures
Respiratory protection: When the concentration of dust in the air exceeds the standard, it is recommended to wear a self-absorbing filtered dust mask.
Eye protection: Wear safety glasses.
Protective clothing: Wear anti-corrosion work clothes.
Hand protection: Wear chemical-resistant gloves.
Other: Smoking, eating, and drinking are prohibited in the workplace, and hands should be washed before meals. Maintain good hygiene habits. Implement pre-employment and regular medical examinations.
III. First-aid measures
Skin contact: Immediately remove contaminated clothing and rinse with plenty of running water for at least 15 minutes. Seek medical attention.
Eye contact: Immediately lift eyelids and rinse thoroughly with plenty of running water or saline for at least 15 minutes. Seek medical attention.
INHALATION: Quickly remove from the scene to fresh air. Keep airway open. If breathing is difficult, give oxygen infusion. If breathing stops, give immediate artificial respiration. Seek medical attention.
Ingestion: Rinse mouth with water, drink milk or egg white if accidentally ingested, and seek medical attention immediately.
Fire extinguishing methods: extinguishing agents: water, carbon dioxide, sand, and earth.
Conclusion
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