Product Description of Sodium Hydroxide CAS#1310-73-2
Sodium hydroxide, also known as caustic soda, has the chemical formula NaOH. It is a highly corrosive strong base, typically available in white flakes or granules. It readily forms an alkaline solution when mixed with water and is also soluble in methanol and ethanol. This deliquescent substance absorbs moisture from the air as well as acidic gases like carbon dioxide.
Sodium hydroxide is a widely used chemical with a broad range of applications and is essential in many industrial processes. It is commonly employed in the production of wood pulp paper, textiles, soaps, and other detergents, and is also used in household products such as alkaline drain cleaners.
Parameters
| Melting point | 681 °C(lit.) |
| Boiling point | 1390°C |
| density | 1.515 g/mL at 20 °C |
| vapor density | <1 (vs air) |
| vapor pressure | 1 mm Hg ( 745 °C) |
| refractive index | 1,473-1,475 |
| Fp | 176-178°C |
| storage temp. | room temp |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | beads |
| color | White |
| Specific Gravity | 2.13 |
| PH Range | 13 - 14 |
| PH | 10.98(1 mM solution);11.95(10 mM solution);12.88(100 mM solution); |
| Odor | Odorless |
| Water Solubility | SOLUBLE |
| λmax | λ: 260 nm Amax: 0.015 λ: 280 nm Amax: 0.01 |
| Decomposition | 176-178 ºC |
| Sensitive | Air Sensitive & Hygroscopic |
| Merck | 14,8627 |
| Dielectric constant | 57.5（25℃） |
| Exposure limits | TLV-TWA air 2 mg/m3 (OSHA); ceiling 2 mg/m3 (ACGIH) and 2 mg/m3/15 min (NIOSH). |
| Stability: | hygroscopic |
| CAS DataBase Reference | 1310-73-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Sodium hydroxide(1310-73-2) |
| EPA Substance Registry System | Sodium hydroxide (1310-73-2) |
Safety Information
| Hazard Codes | C,Xi |
| Risk Statements | 36/38-35-34 |
| Safety Statements | 26-45-37/39-24/25-36/37/39 |
| RIDADR | UN 1824 8/PG 2 |
| OEL | Ceiling: 2 mg/m3 |
| WGK Germany | 1 |
| RTECS | TT2975000 |
| F | 8 |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | II |
| Hazardous Substances Data | 1310-73-2(Hazardous Substances Data) |
| Toxicity | LD orally in rabbits: 500 mg/kg (10% soln) (Fazekas) |
| IDLA | 10 mg/m3 |
Product Application of Sodium Hydroxide CAS#1310-73-2
Sodium hydroxide has a wide range of applications. In chemical experiments, besides being used as a reagent, its strong hygroscopicity allows it to serve as an alkaline desiccant. Caustic soda is widely utilized across the economy and is essential for many industrial sectors. The largest consumer of caustic soda is the pharmaceutical industry, followed by papermaking, aluminum smelting, tungsten smelting, rayon and artificial cotton production, and soap manufacturing.
Additionally, significant quantities of caustic soda are employed in the production of dyes, plastics, pharmaceuticals, and organic intermediates, as well as in rubber recycling, gold production, water electrolysis, and the manufacture of inorganic salts, borax, chromium salts, manganates, phosphates, and more.
Industrial sodium hydroxide must comply with national standard GB209-2006; industrial ion exchange membrane sodium hydroxide with GB/T11199-89; chemical fiber sodium hydroxide with GB11212-89; and edible sodium hydroxide with GB5175-85.
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