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Sodium Dichloroisocyanurate[2]

Updated: 2026-09-18

Overview

Sodium Dichloroisocyanurate (SDIC) is an organic chlorine compound widely recognized for its potent disinfecting and bleaching properties. It is commonly available in powder or granular form and is highly soluble in water, making it suitable for various industrial and commercial applications. SDIC is particularly valued for its stability and controlled release of hypochlorous acid, which ensures prolonged antimicrobial activity. This compound is a preferred choice in industries requiring reliable and efficient sanitization, such as water treatment, food processing, and healthcare.

Physical and Chemical Properties

SDIC is a white crystalline substance with a chlorine content of 56-60%, which contributes to its strong oxidizing capabilities. It decomposes upon heating, releasing chlorine gas, and is highly soluble in water, forming a slightly acidic solution. The compound is stable under dry conditions but reacts vigorously with moisture, acids, or reducing agents. Its solubility and reactivity make it an effective disinfectant, as it rapidly releases active chlorine upon dissolution, targeting microorganisms efficiently.

Main Applications

SDIC is extensively used in water treatment for swimming pools, drinking water, and wastewater due to its ability to kill bacteria, viruses, and algae. It is also employed in the food industry for sanitizing equipment and surfaces. In household and industrial cleaning products, SDIC serves as a bleaching agent and disinfectant. Additionally, it is used in agriculture for soil sterilization and in the textile industry for fabric bleaching. Its versatility and effectiveness make it indispensable in maintaining hygiene standards across multiple sectors.

Safety and Storage

SDIC is corrosive and can cause severe skin and eye irritation. Inhalation of dust or fumes should be avoided, and appropriate personal protective equipment (PPE), such as gloves and goggles, must be worn during handling. Storage requires a cool, dry environment, away from moisture and incompatible materials like acids or reducing agents. Proper ventilation is essential to prevent the accumulation of chlorine gas, which can be hazardous. Always refer to the Material Safety Data Sheet (MSDS) for detailed safety protocols.

B2B Procurement Guide

When procuring SDIC, prioritize suppliers who provide certificates of analysis (CoA) to verify chlorine content (≥56%) and purity. Packaging should be moisture-resistant, typically in polyethylene-lined bags or drums, to prevent degradation. Bulk purchases often offer cost advantages, but ensure storage conditions align with safety guidelines. Consider suppliers with a track record in chemical distribution and compliance with international standards (e.g., ISO, REACH). Pricing varies based on purity, quantity, and market demand, so request quotes from multiple vendors for comparison.

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