silvermonochloride
Silver(I)Chloride
CAS: 7783-90-6
Molecular Formula: AgCl
silvermonochloride - Names and Identifiers
| Name | Silver(I)Chloride |
| Synonyms | AgCl hornsilver cerargyrite chlorargyrite SILVER CHLORIDE Silver chloride Silver(I)Chloride silvermonochloride silver(1+) chloride Silver monochloride SILVER (I) CHLORIDE silverchloride(agcl) SILVER CHLORIDE PURE Mark II naturalizer Silver chloride (AgCl) |
| CAS | 7783-90-6 |
| EINECS | 232-033-3 |
| InChI | InChI=1/Ag.ClH/h;1H/q+1;/p-1 |
| InChIKey | HKZLPVFGJNLROG-UHFFFAOYSA-M |
silvermonochloride - Physico-chemical Properties
| Molecular Formula | AgCl |
| Molar Mass | 143.32 |
| Density | 5.56 |
| Melting Point | 455 °C (lit.) |
| Boling Point | 1550 °C |
| Flash Point | 1550°C |
| Water Solubility | 1.93 mg/L (25 ºC) |
| Solubility | 0.00188g/l |
| Vapor Presure | 1 mm Hg ( 912 °C) |
| Appearance | White Crystalline Powder |
| Specific Gravity | 5.56 |
| Color | Yellow |
| Solubility Product Constant(Ksp) | pKsp: 9.75 |
| Merck | 14,8509 |
| Storage Condition | Store at +5°C to +30°C. |
| Stability | Stable, but discolours in light. |
| Sensitive | Light Sensitive |
| Refractive Index | 2.071 |
| MDL | MFCD00003399 |
| Physical and Chemical Properties | Chemical formula AgCl. Molecular weight 143.32. Light-sensitive white tetragonal powder. The patient became dark when the light was encountered. Melting point of 455 ° C, after condensation for angular material, boiling point of 1550 ° C, relative density of 5.56, refractive index of 2.071. It is very difficult to dissolve in water, ethanol and dilute acid, and quite soluble in boiling concentrated hydrochloric acid, soluble in ammonia, sodium thiosulfate and potassium cyanide solution. Preparation Method: from silver nitrate solution to add hydrochloric acid solution or sodium chloride solution reaction, or hydrochloric acid or sodium chloride solution is added to the hot silver nitrate solution obtained. Purposes: for medicine, electroplating, photography, spectral analysis as a buffer to improve the sensitivity of rare earth elements. |
| Use | Used as an analytical reagent |
silvermonochloride - Risk and Safety
| Hazard Symbols | N - Dangerous for the environment |
| Risk Codes | R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R50 - Very Toxic to aquatic organisms |
| Safety Description | S24/25 - Avoid contact with skin and eyes. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S60 - This material and its container must be disposed of as hazardous waste. |
| UN IDs | UN 3077 9 / PGIII |
| WGK Germany | 3 |
| RTECS | VW3563000 |
| FLUKA BRAND F CODES | 8 |
| TSCA | Yes |
| HS Code | 2843 29 00 |
| Hazard Class | 9 |
| Toxicity | LD50 orally in Rabbit: > 5110 mg/kg |
silvermonochloride - Upstream Downstream Industry
silvermonochloride - Introduction
The color becomes dark, purple and gradually black in light. So it is usually off-white. The solubility in water at 25 ℃ is 1.93 mg/L, hydrochloric acid can increase its solubility in water, soluble in 250 parts of concentrated hydrochloric acid, 13 parts of 10% ammonia, soluble in sodium cyanide, sodium thiosulfate, ammonium carbonate, concentrated ammonium chloride, mercury nitrate and silver nitrate solution.. Insoluble in ethanol and dilute hydrochloric acid. The solubility of newly precipitated silver chloride is faster than that of dried products.
Last Update：2022-10-16 17:28:46
silvermonochloride - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Chemical reaction | silver chloride interacts with hydrogen or a metal with less negative charge than silver, and silver is reduced to form metallic silver, at the same time, there is chloride formation. And hydrogen cyanide acid, hydrochloric acid, the formation of complexes, the solution is acidic. Silver chloride is fused with potassium carbonate to form silver carbonate. With the role of hydrogen sulfide liquid, the formation of silver sulfide and hydrochloric acid. With the alkali, the formation of silver oxide, and the role of ammonia, the formation of silver ammonia ion. It reacts with mercury nitrate to form silver nitrate and forms an adduct with silver nitrate. Co-shaking with sodium arsenite resulted in precipitation of silver arsenite which was more difficult to dissolve. With sodium thiosulfate, the formation of salt, and in ammonia under the condition of sodium dithionite, is reduced to metal silver. Silver chloride and potassium sulfite, the formation of two silver sulfite (I) potassium, and sodium sulfate co-heating, the decomposition of the precipitation of metallic silver. In alkaline conditions and formaldehyde also formed silver metal. And ammonium sulfide to form silver sulfide. Hydrogen peroxide can also be reduced in the alkali solution. After mixing with water and irradiation under sunlight, silver is reduced by photons. |
| Use | silver chloride is a component of photographic emulsion, and its photosensitivity is inferior to that of silver bromide and higher than that of silver iodide. Protected from light, should be packed with black paper. Used as a preservative and neuroleptic. It is also used in silver plating, medicine, and the manufacture of cosmic ray ionization detectors. Single crystal can be used as infrared absorption groove and lens element. used as analytical reagent analytical reagent. Spectral analysis used as a buffer to improve the sensitivity of rare earth elements. Photometric determination. Photographs were taken. Electroplating. |
| preparation method | 50g of analytical silver nitrate was dissolved in of high purity water, and water-insoluble matters were removed by filtration. To the filtrate, a purified ammonium chloride solution with a concentration of 10% is slowly added. When the ammonium chloride solution is added dropwise, the mixture is continuously stirred so that the precipitate is slowly precipitated. When the precipitation of ammonium chloride no longer occurred by the dropwise addition, the addition of ammonium chloride was stopped and it was left in the dark to allow the precipitation to settle. The clear liquid was poured out and 300-of high-purity water was added. After stirring and settling, the clear liquid was poured out, and the washing was repeated several times. Then, ML of high-purity water was added, stirred, filtered in a Buchner funnel, washed several times with high-purity water, and the crystals were dried in a vacuum drying oven at 70-80 ° C. Under a pressure of 6665-7998Pa. The product was stored in Brown reagent bottles packed with black paper. In the process of Operation should pay attention to avoid light, so as to avoid the formation of silver chloride photosensitive discoloration. The silver chloride prepared by this method was used as a support in the spectral analysis. This product by spectral qualitative analysis only detected trace amounts of copper, gold and trace amounts of silicon, magnesium, iron, aluminum and other elements. |
| solubility in water (g/100ml) | grams dissolved per 100ml of water at different temperatures (℃): 0.0001923g/20 ℃;5.2 × 10-5/50 ℃ |
| production method | 1. First, the reagent Silver nitrate is dissolved in distilled water, and then the theoretical amount of reagent hydrochloric acid (or reagent sodium chloride solution) is added under constant stirring, and the reaction quickly produces white silver chloride precipitate: the precipitate is no longer formed, then the reaction is finished, filtered, the precipitate is sucked dry and washed with distilled water for several times? The content of NO 3-Ion was acceptable, and it was dried in the dark room at 80 ℃. |
Last Update：2024-04-10 22:29:15
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Raw Materials for silvermonochloride