Products Description
Sodium hydroxide solution is made by dissolving sodium hydroxide (NaOH) in water. The solution is strongly alkaline, colourless and transparent, and corrosive. It can neutralise with acid to form salt and water; it can react with some metal ions to form hydroxide precipitate; it can also react with acidic oxides. Sodium hydroxide solution has strong water absorption, and it is easy to absorb water and deliquesce when placed in the air.
| Appearance | White, opaque crystals |
| Odor | Odorless |
| Density | 2.13 g/cm3 |
| Melting point | 323 °C (613 °F; 596 K) |
| Boiling point | 1,388 °C (2,530 °F; 1,661 K) |
|
Solubility in water |
418 g/L (0 °C) 1000 g/L (25 °C) 3370 g/L (100 °C) |
| Solubility | Soluble in glycerol, negligible in ammonia, insoluble in ether, slowly soluble in propylene glycol |
| Solubility in methanol | 238 g/L |
| Solubility in ethanol | 139 g/L |
| Vapor pressure | <2.4 kPa (20 °C) 0.1 kPa (700 °C) |
| Acidity (pKa) | 13.9 (Na+) |
| Basicity (pKb) | 0.0 (OH−) |
|
Magnetic susceptibility (χ) |
−15.8·10−6 cm3/mol (aq.) |
|
Refractive index (nD) |
1.3576 |
Uses
- Chemical production: Sodium hydroxide solution has a wide range of applications in the chemical industry. For example, in the paper industry, it is used to separate the cellulose in the pulp so as to manufacture paper; in the textile industry, it is used for mercerising cotton fabrics to improve the luster and dyeing performance of the fabrics.
- Sewage treatment: It can adjust the pH value of sewage, so that acidic wastewater can be neutralised. At the same time, it can remove heavy metal ions in wastewater and purify water quality.
- Food processing: In the food industry, Sodium hydroxide solution is used for cleaning and disinfection of food processing equipment; it can also be used as an acidity regulator to adjust the pH value of food in the process of food processing.
Company Profile
Adhering to the business philosophy of "technology, industrialization and specialization", GNEE is committed to developing into the best supplier and the most trustworthy and respectable partner in the chemical industry through sincere cooperation. We will create excellence through standardized and efficient management and professional management team.
FAQ
Q: How and when can I receive the goods after payment?
A: For small quantities, we will deliver the goods to you by international express (DHL, FedEx, T/T, EMS, etc.) or by air. Normally, it will take 2-5 days for you to receive the goods.
For large quantities, ocean freight is preferred. It takes a few days to a few weeks to reach the destination port, depending on the location of the destination port.
Q: How can I get samples?
A: We are honored to provide samples for you. For common products, you only need to bear the shipping cost; for high value products, you only need to bear the shipping cost and a small amount of product cost.
Q: How does your factory do quality control?
A: Quality comes first. We attach great importance to quality control from the very beginning.
Q: Do you test all your goods before delivery ?
A: Yes, we have 100% test before delivery, will provide COA together with .
Q: What is your MOQ ?
A: Depending on the product you need, we will check the minimum packaging, please contact us for specific details .
Q: Where is the port of loading?
A: Usually Shanghai port or Qingdao port.
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