Silver Nitrate Chemical Analysis

- Jun 01, 2017 -

Silver Nitrate Colorless, tasteless transparent crystal or white crystal, bitter taste. Density: 4.35, melting point 212 Shan, boiling point: 440 Shan. Used for image, mirror, silver, hidden and not faded ink, dyeing, porcelain, coloring, etching of ivory and important reagents in chemical analysis, Silver Nitrate medicine used as an antivirus agent, astringent, neonatal eye inflammation prevention and veterinary as a wound and local inflammation treatment.

Animal tests can lead to hemolytic anemia and pulmonary edema, repeated small doses of silver injections, can cause anemia, bone marrow hyperplasia, Silver Nitrate tissue organs occur silver composure, especially the kidney glomerulus substrate silver calm, can lead to thickening of the film.

Short-term excessive to the skin mucous membrane has the stimulation function and the corrosive effect, to the respiratory tract has the damage performance is bronchitis, the respiratory tract mucous membrane silver composure, the silver composure appears in the conjunctiva first, Silver Nitrate mistakenly after the silver nitrate, the digestive tract mucous membrane has the corrosivity.

Skin silver Calm, common hand, forearm and other exposed parts, showing gray and brownish black spots, some people appear the body of the skin silver, Silver Nitrate the silver calm change is often long-lasting, not easy to fade, the impact on the respiratory system can lead to chronic bronchitis.

Silver nitrate is a strong oxidant with a fire hazard. Fire with water.

Coexisting with organic matter, Silver Nitrate when the light is black, if there is hydrogen sulfide, no matter whether or not the lights are darkened. Can be decomposed into silver by heating.

After the silver nitrate is wrongly served, it can quickly inhale the concentrated salt water and wash the stomach with 2% chlorinated sodium injection to make the formation of silver chloride precipitate and other symptomatic treatment. Skin and eye mucous membrane of silver, Silver Nitrate can be used sodium thiosulfate and iron potassium cyanide mixture, local intradermal or conjunctival injection, there is a certain effect.

In order to prevent the decomposition of silver nitrate, can be stored in brown bottles or light containers, at low temperature, ventilation, far-organic and easy to oxidize the material to preserve

When leaks occur, masks and gloves should be worn. Rinse with water and drain the diluted sewage into the waste water system.

Silver nitrate is turned into silver when organic matter becomes gray and black. Pure silver nitrate is stable in light, but its aqueous solution and solids are often kept in a brown reagent bottle because of the general purity of the product. Silver nitrate is decomposed into silver, nitrogen, oxygen and nitrogen dioxide when heated to 440 Shan. Aqueous solution and ethanol solution have a neutral reaction to the litmus, Silver Nitrate the ph is about 6. Boiling point 444 Shan (decomposition). Oxidizing. In the presence of organic matter, see light gray or gray-black. Silver nitrate can react with a series of reagents to precipitate reactions or coordination reactions (see coordination compounds). For example, with hydrogen sulfide reaction, the formation of black silver sulfide Ag2s precipitation; reaction with potassium chromate, formation of red-brown chromium-acid silver Ag2Crot precipitation; reaction with sodium dihydrogen phosphate, forming yellow silver phosphate Ag3po4 precipitate; Silver Nitrate reaction with halogen ions, forming silver halide agx precipitate. Also can be with alkali action, form brown black oxidized silver Ag2o precipitate, and oxalic acid root ion action form white oxalic acid silver Ag2C2o4 precipitate etc. Silver nitrate can react with NH3, CN, Scn-and so on, forming various coordination molecules


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