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Potassium nitrate (KNO3) is a chemical compound that consists of potassium, nitrogen, and oxygen atoms. It is also known as saltpeter, nitrate of potash, or niter.

Potassium nitrate is a white crystalline salt that is soluble in water. It is commonly used in the production of fertilizers, as well as in the manufacturing of gunpowder and fireworks. It is also used in the food industry as a preservative and as a curing agent for meats.

The 500g quantity of potassium nitrate would be packaged in a container, typically made of plastic or glass, with a secure lid to prevent moisture from entering. It is important to store potassium nitrate in a cool, dry place away from direct sunlight and heat sources. It is also important to keep it out of reach of children and pets.

Potassium nitrate is a potentially hazardous substance and should be handled with care. It can cause irritation to the skin, eyes, and respiratory system if inhaled or ingested. Protective gear, such as gloves and a mask, should be worn when handling potassium nitrate. In case of accidental ingestion or exposure, medical attention should be sought immediately.

Here are some specifications on potassium nitrate (KNO3) with a quantity of 500g:

Chemical Formula: KNO3 Molecular Weight: 101.1032 g/mol Appearance: White crystalline powder or colorless prismatic crystals Melting Point: 334°C (633°F) Boiling Point: Decomposes at 400°C (752°F) Solubility: Soluble in water, glycerol, and ammonia; insoluble in ethanol Density: 2.11 g/cm3 Odor: Odorless pH: Neutral (7.0)