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What is the purity of sodium hydroxide?
What is sodium hydroxide?
Why is sodium hydroxide used in water purification?
Pure sodium hydroxide is a colorless crystalline solid that melts at 318 °C (604 °F) without decomposition and boils at 1,388 °C (2,530 °F). It is highly soluble in water, with a lower solubility in polar solvents such as ethanol and methanol. Sodium hydroxide is insoluble in ether and other non-polar solvents.
- NaOH
- 39.9971 g/mol
- 323 °C (613 °F; 596 K)
- 418 g/L (0 °C), 1000 g/L (25 °C), 3370 g/L (100 °C)
On the other hand, food-grade NaOH N a O H will not contain any heavy metals (usually food-grade NaOH N a O H will have a purity of more than 99% 99 % while standard NaOH N a O H pellets are sold with a purity of less than 97% 97 % ). So using lab-grade NaOH N a O H in foodstuff is a crime (at least in the EU).
- So-called food-grade stuff is meant to be consumed by humans. It's important that every single compound of a foodstuff is food-grade or at least G...
- Generally laboratory grade reagents have not been prepared with human consumption as a consideration, but with regard to their use as a chemical re...
- Background: I'm a chemist and have worked for companies in Pharma, Research Chemical Supply, and Dietary Supplements. Lab Grade is different than F...
4 days ago · sodium hydroxide (NaOH), a corrosive white crystalline solid that contains the Na + cation and the OH − anion. It readily absorbs moisture until it dissolves . Sodium hydroxide is the most widely used industrial alkali and is often used in drain and oven cleaners.
- The Editors of Encyclopaedia Britannica
Oct 14, 2022 · Updated October 14, 2022. Sodium Hydroxide. Sodium hydroxide (NaOH), also known as caustic soda or lye, is a highly versatile substance used in a variety of manufacturing processes. Sodium hydroxide is a co-product of chlorine production. Key Points/Overview. Uses & Benefits. Safety Information. FAQs. Related Resources. Share: Key Points/Overview.
Pure sodium hydroxide is a colourless crystalline solid which melts without decomposition at 318 ° C (604 ° F) and boils at 1,388 ° C (2,530 ° F). Despite lower solubility in polar solvents such as ethanol and methanol, it is highly soluble in water.
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- Why is sodium hydroxide toxic?Humans can be exposed during the manufacture of sodium hydroxide and in the handling of sodium hydroxide as a solid or concentrated solution. Sodiu...
- Is sodium hydroxide a salt?Caustic soda (sodium hydroxide) is an alkali salt which is also called Lye. It is the common name of sodium hydroxide. This name is given due to th...
- What is the sodium hydroxide solution used for?Sodium hydroxide is used in the manufacture of soaps and a range of detergents used in homes and business applications. NaOH is used for the produc...
- Is sodium hydroxide good for your skin?Concentrated sodium hydroxide, when swallowed, is a strong irritant and corrosive to the skin, hair, breathing tract and digestive system. Sodium h...
- What is the importance of sodium hydroxide?A metallic caustic base is sodium hydroxide (NaOH), also known as lye or caustic soda. An alkali, caustic soda is commonly used in many industries,...
- Why is sodium hydroxide used in soap?It is not used for shaving, it is used for soap production. Oil and fat triglycerides react with sodium hydroxide to form fatty acid glycerol and s...
In its pure form, sodium hydroxide appears as a white, solid crystalline substance that readily absorbs moisture from the air. Chemical Properties Sodium hydroxide is a strong base and ranks as one of the most commonly used alkalis.
Sodium hydroxide is very corrosive. It is generally used as a solid or a 50% solution. Other common names include caustic soda and lye. Sodium hydroxide is used to manufacture soaps, rayon, paper, explosives, dyestuffs, and petroleum products.
