Silver Nitrate Can React With Alkali

- Sep 27, 2017 -

Silver nitrate is a strong oxidant, corrosive, Silver Nitrate environmental pollutants. With some organic matter or sulfur, phosphorus mixed grinding, impact can be burned or exploded; silver nitrate is corrosive. Once the skin stained with silver nitrate solution, there will be black spots, which is due to the formation of a black protein silver.

Silver nitrate has a certain toxicity, into the body to produce serious corrosion of the gastrointestinal tract, adult lethal dose of about 10 grams. Baptist silver nitrate can cause severe abdominal pain, vomiting, bloody stool, and even gastrointestinal perforation occurred. Can cause skin and eye burns. Long-term exposure to the goods of the workers will appear systemic silver syndrome. Performance includes: the body's skin a wide range of pigmentation, gray-blue or shallow stone color; eye silver caused by eye damage; respiratory silver calm caused by chronic bronchitis and so on.

Closed operation, to enhance ventilation. Silver Nitrate Against the solution when the operator should wear rubber gloves and goggles, should not be dropped on the skin.

Skin contact: Remove contaminated clothing and rinse thoroughly with soap and water.

Store in a cool, ventilated place; should be stored in a brown or black bottle. Away from fire, heat. Avoid light. The reservoir temperature does not exceed 30 ℃, relative humidity does not exceed 80%. The packaging must be sealed and not damp. Should be easy to (with) fuel, Silver Nitrate reducing agent, alkali, alcohol, edible chemicals stored separately, avoid mixed storage.

Silver nitrate in the case of organic matter gray black, decomposition of silver. Pure silver nitrate is stable to light, but because of the general product purity is not enough, Silver Nitrate its aqueous solution and solid are often stored in the brown reagent bottle. Silver nitrate is heated to 440 ° C to decompose into silver, nitrogen, oxygen and nitrogen dioxide. The aqueous solution and the ethanol solution were neutral to the litmus and the pH was about 6. The boiling point of 444 ° C (decomposition). There is oxidation. In the presence of organic matter, see the light becomes gray or grayish black. Silver nitrate reacts with a series of reagents for precipitation or coordination (see coordination compounds). For example, with hydrogen sulfide reaction, the formation of black silver sulfide Ag2S precipitation; with potassium chromate reaction, the formation of reddish brown silver chromate Ag2CrO4 precipitation; with sodium hydrogen phosphate reaction, the formation of yellow silver phosphate Ag3PO4 precipitation; Silver Nitrate reaction with halogen ions, To form silver halide AgX precipitate. But also with the role of alkali, the formation of brown black silver oxide Ag2O precipitation; with the role of oxalate ions to form white silver oxalate Ag2C2O4 precipitation. Silver nitrate can react with NH3, CN-, SCN- and so on to form various coordination molecules

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