Caustic Soda Flakes CAS#1310-73-2
Powerful Alkalinity & Saponification Capacity: Strong inorganic alkali with high reactivity, effective for oil removal, saponification and neutralization, rapidly adjust pH value of various water systems.
Excellent Solubility & Heat Release: Dissolves quickly in water with massive heat release, forms transparent alkaline solution, easy to prepare different concentration liquid for industrial use.
Strong Degreasing & Cleaning Effect: Great ability to decompose grease, organic dirt and acidic impurities, widely used in cleaning, textile printing and dyeing, papermaking pulping industries.
Stable Solid Form for Convenient Transport: Flaky solid with uniform texture, low moisture content under sealed storage, easy to weigh, transport and automatic feeding.
Caustic soda flakes, solid sodium hydroxide, is a high-demand basic inorganic chemical raw material, with strong corrosivity and wide coverage of industrial application scenarios.
Chemical & Physical Properties
| Property | Value |
|---|---|
| Melting point | 318 °C |
| Density | 2.13 g/cm³ |
| Storage temp | Sealed dry cool warehouse, strictly isolate air and moisture |
| Solubility | Highly soluble in water, soluble in ethanol and glycerol |
| Form | White flaky solid |
| Color | Pure white |
| Odor | Odorless |
| PH Value | Strong alkaline |
| Hygroscopicity | Extremely hygroscopic, easily absorb CO₂ in air to form sodium carbonate |
| Stability | Stable in airtight packaging; deteriorates rapidly when exposed to air |
| EINECS No. | 215-185-5 |
| CAS DataBase Reference | 1310-73-2 |
Safety Information
| Item | Value |
|---|---|
| Hazard Codes | C |
| Risk Statements | R35 |
| Safety Statements | S24/25; S26; S37/39; S45 |
| UN Number | 1823 |
| Hazard Class | 8 Corrosive goods |
| Packing Group | II |
| Flammability | Non-flammable |
| HS Code | 2815110000 |
Main applications: Textile printing & dyeing, papermaking pulping, industrial degreasing detergent, wastewater pH adjustment, soap & detergent synthesis, metal surface treatment, chemical intermediate production, food processing neutralizer, oil industry refining auxiliary.






