소개
Anhydrous sodium carbonate, commonly known as soda ash or washing soda, is a white powder or fine granular solid. Although its common name contains “soda/ash” implying alkalinity, it is actually a salt. Its aqueous solution is strongly alkaline. It is hygroscopic; in humid air, it absorbs moisture and carbon dioxide, causing it to clump. It reacts readily with acids, releasing large amounts of carbon dioxide; it forms insoluble carbonate precipitates with calcium and barium ions.
사양
| 목 | 사양 |
| 모습 | White powder (Light) or uniform granules (Dense) |
| 분석 (순도) | ≥ 99.2% |
| 녹는점 | 851 °C |
| 휘발성 | 비휘발성 |
| 재 함량 | ~ 100% |
| 용해도 | 21.5 g/100 mL (20°C in water), insoluble in ethanol |
| 열 안정성 | Highly stable, does not decompose at melting point |
응용 분야 및 기능
- Glass Manufacturing: Acts as a flux that significantly lowers the melting temperature of silica sand; it is the core raw material for flat glass and glass container production.
- Detergents & Chemicals: Used to produce soap and synthetic detergents, serving to soften water and provide an alkaline environment for cleaning.
- Metallurgy & Dyeing: Used for desulfurization in steelmaking; acts as a fixing agent and water softener in the dyeing process.
저장 요구 사항
Should be stored in a dry, ventilated, and cool warehouse. It is highly prone to absorbing moisture and clumping, and can even absorb carbon dioxide from the air to transform into sodium bicarbonate. Ensure packaging is intact; do not store with acids or high-moisture items.
취급 및 주의사항
The dust is moderately irritating to the eyes, respiratory tract, and skin. Operators should wear dust masks, safety goggles, and work clothes. Accidental ingestion or massive inhalation will cause mucosal burns. It produces large amounts of gas when reacting with acid; add it slowly when preparing solutions.
공식 및 함수
Standard Glass Production Formula (approx. by weight): Pure Silica Sand (60%) + Soda Ash (20%) + Limestone (20%).
Function: Silica sand has an extremely high melting point (approx. 1700°C). Soda ash acts as a flux in this formula. It reacts with silica sand at high temperatures to form sodium silicate, drastically lowering the overall melting temperature to around 1400°C-1500°C. This saves immense amounts of energy and makes the glass easy to shape.
포장
PE 백으로 안감을 댄 섬유 드럼 또는 골판지 상자에 포장합니다. 맞춤형 포장은 요청 시 가능합니다.