Product Description

Caustic Soda Flakes, also called Sodium Hydroxide Flakes, is a strong inorganic alkali with strong corrosiveness and high hygroscopicity. It is white translucent solid flakes, widely used in various industrial fields.

Uses

• Chemical Industry: Raw material for detergents, soaps and oil refining.
• Papermaking & Textile: Used in pulping, cotton desizing and mercerizing.
• Water Treatment: Adjusts sewage pH and neutralizes acidic wastewater.
• Other: Petroleum refining, metal surface treatment and food processing (food grade only).

Basic Information

• CAS Number: 68988-74-9
• Molecular Formula: C?H??N?NaO?
• Molecular Weight: 325.29 g/mol
• Synonyms: Sodium Hydroxide; Lye Flakes

Physical & Chemical Properties

• Appearance: White translucent solid flakes, odorless, hard and brittle.
• Density: 2.13 g/cm3; Melting Point: 318.4°C; Boiling Point: 1390°C.
• Solubility: Highly soluble in water (exothermic), soluble in ethanol; insoluble in acetone.
• pH Value: 13-14 (1% aqueous solution), strongly alkaline.

Synthesis, Storage & Packaging

• Synthesis: Produced by electrolysis of saturated brine, then flaked.
• Storage: Store in cool, dry, well-ventilated area; keep sealed to prevent deliquescence.
• Packaging: Industrial Grade: 25kg/50kg woven bags or 1000-1500kg jumbo bags; Food Grade: 25kg food-grade composite bags; all with corrosive hazard signs.