{"id":12,"date":"2026-06-26T23:19:49","date_gmt":"2026-06-26T15:19:49","guid":{"rendered":"https:\/\/sdic-tcca.hbkaixuan.cn\/?p=12"},"modified":"2026-06-26T23:19:49","modified_gmt":"2026-06-26T15:19:49","slug":"safe-storage-of-tcca-and-sdic-maritime-shipping-warehouse-best-practices","status":"publish","type":"post","link":"https:\/\/sdic-tcca.hbkaixuan.cn\/?p=12","title":{"rendered":"Safe Storage of TCCA and SDIC: Maritime Shipping & Warehouse Best Practices"},"content":{"rendered":"<p><strong>Quick answer:<\/strong> TCCA is classified as <strong>UN 2468, Hazard Class 5.1 (oxidizer)<\/strong>; SDIC is <strong>UN 3077, Hazard Class 9 (miscellaneous)<\/strong>. Both must be stored below 30\u00b0C in dry, ventilated warehouses, away from acids, ammonia, oils, and reducing agents. Maritime shipping requires IMDG-certified packaging and segregation per Code 5.1 \/ Code 9 stowage rules.<\/p>\n<p>Mishandling chlorinated isocyanurates is a leading cause of warehouse fires and shipping incidents in the chemicals trade. This guide compiles the storage and transport requirements every TCCA\/SDIC buyer, distributor, and warehouse manager must follow.<\/p>\n<h2>Hazard Classification Quick Reference<\/h2>\n<table>\n<thead>\n<tr>\n<th>Property<\/th>\n<th>TCCA (Trichloroisocyanuric Acid)<\/th>\n<th>SDIC (Sodium Dichloroisocyanurate)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>UN Number<\/td>\n<td>UN 2468<\/td>\n<td>UN 3077<\/td>\n<\/tr>\n<tr>\n<td>Hazard Class<\/td>\n<td>5.1 (Oxidizing Substance)<\/td>\n<td>9 (Miscellaneous Dangerous Goods)<\/td>\n<\/tr>\n<tr>\n<td>Packing Group<\/td>\n<td>II<\/td>\n<td>III<\/td>\n<\/tr>\n<tr>\n<td>Marine Pollutant<\/td>\n<td>No<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>IMDG Stowage<\/td>\n<td>Category A (on deck or under deck)<\/td>\n<td>Category A (on deck or under deck)<\/td>\n<\/tr>\n<tr>\n<td>Maximum Storage Temp<\/td>\n<td>30\u00b0C \/ 86\u00b0F<\/td>\n<td>30\u00b0C \/ 86\u00b0F<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Warehouse Storage Requirements<\/h2>\n<h3>Temperature and Humidity<\/h3>\n<ul>\n<li><strong>Maximum temperature:<\/strong> 30\u00b0C (86\u00b0F). Above this, chlorine release accelerates and product degrades.<\/li>\n<li><strong>Relative humidity:<\/strong> Below 60%. Moisture absorption causes caking and slow chlorine loss.<\/li>\n<li><strong>Direct sunlight:<\/strong> Strictly prohibited. UV exposure triggers premature decomposition.<\/li>\n<\/ul>\n<h3>Incompatible Materials (Strictly Separate)<\/h3>\n<p>Never store TCCA or SDIC near:<\/p>\n<ul>\n<li><strong>Ammonia or ammonium compounds:<\/strong> Releases toxic nitrogen trichloride gas<\/li>\n<li><strong>Strong acids (HCl, H\u2082SO\u2084):<\/strong> Generates chlorine gas instantly<\/li>\n<li><strong>Organic materials (oils, paper, sawdust):<\/strong> Fire hazard<\/li>\n<li><strong>Reducing agents (sulfur, hydrazine):<\/strong> Violent exothermic reaction<\/li>\n<li><strong>Other chlorine donors (calcium hypochlorite):<\/strong> Cross-contamination causes auto-ignition<\/li>\n<\/ul>\n<h3>Ventilation<\/h3>\n<p>Maintain at least 6 air changes per hour. Install chlorine gas detectors (alarm threshold: 0.5 ppm). Provide emergency exhaust capable of clearing the warehouse within 5 minutes.<\/p>\n<h2>Maritime Shipping Requirements<\/h2>\n<h3>Approved Packaging<\/h3>\n<ul>\n<li><strong>Inner packaging:<\/strong> Sealed HDPE bags or PE-lined drums<\/li>\n<li><strong>Outer packaging:<\/strong> UN-certified fiber drums, plastic drums (50kg), or IBC totes (1000kg) bearing the proper UN marking<\/li>\n<li><strong>Labeling:<\/strong> Hazard class diamond label (5.1 for TCCA, 9 for SDIC), proper shipping name, UN number, packing group, and emergency contact<\/li>\n<\/ul>\n<h3>Container Loading<\/h3>\n<ul>\n<li>Use only <strong>dedicated dry containers<\/strong>, never reefer or food-grade<\/li>\n<li>Place desiccant bags throughout the container (minimum 2 kg per 20&#8242; container)<\/li>\n<li>Inspect for prior contamination \u2014 never load into a container previously used for oils or ammonia products<\/li>\n<li>Block and brace pallets to prevent shifting during voyage<\/li>\n<\/ul>\n<h3>Documentation<\/h3>\n<p>Every international shipment requires:<\/p>\n<ul>\n<li>Material Safety Data Sheet (MSDS) \u2014 both UN and country-specific format<\/li>\n<li>Certificate of Analysis (COA) \u2014 batch-specific, signed by QC manager<\/li>\n<li>Dangerous Goods Declaration (DGD) per IMDG Code<\/li>\n<li>Container Packing Certificate<\/li>\n<li>Insurance certificate covering hazardous cargo<\/li>\n<\/ul>\n<h2>Spill and Fire Response<\/h2>\n<h3>Spill Procedure<\/h3>\n<ol>\n<li>Evacuate the area; only personnel in full PPE (respirator, gloves, goggles) may enter<\/li>\n<li>Sweep up dry product with non-sparking tools; do NOT use water on dry spill<\/li>\n<li>Place into a clean, dry, labeled container<\/li>\n<li>Decontaminate the area with diluted sodium thiosulfate solution<\/li>\n<\/ol>\n<h3>Fire Procedure<\/h3>\n<ol>\n<li>Use ONLY copious amounts of water \u2014 do NOT use foam, CO\u2082, or dry chemical (these worsen the situation)<\/li>\n<li>Cool surrounding containers from a safe distance with water spray<\/li>\n<li>Evacuate downwind area to a 500-meter radius due to chlorine gas release<\/li>\n<li>Notify local emergency services immediately and provide MSDS<\/li>\n<\/ol>\n<h2>Country-Specific Import Requirements<\/h2>\n<h3>United States<\/h3>\n<p>EPA registration required for any chlorine donor marketed for pool\/spa use. Distributors must hold a current EPA Establishment Number.<\/p>\n<h3>European Union<\/h3>\n<p>REACH registration mandatory. Active substance approval under BPR (Biocidal Products Regulation) required for biocidal applications.<\/p>\n<h3>Southeast Asia (ASEAN)<\/h3>\n<p>Most ASEAN countries accept SGS or BV inspection reports. Vietnam, Thailand, and Indonesia require additional product registration for aquaculture use.<\/p>\n<h3>Middle East (GCC)<\/h3>\n<p>GCC Standardization Organization (GSO) certification needed for consumer-facing products. Industrial bulk supply typically requires only standard MSDS.<\/p>\n<h2>Why Choose a Compliant Supplier?<\/h2>\n<p>Shilan Chemical&#8217;s TCCA and SDIC products ship with full IMDG-compliant packaging, UN-certified drums, batch COAs, and country-specific MSDS variants. Every container is loaded under QC supervision with desiccant and bracing. <a href=\"https:\/\/sdic-tcca.hbkaixuan.cn\/contact.html\">Contact us<\/a> for a compliance pre-check before placing your first order.<\/p>\n<h2>Related Resources<\/h2>\n<ul>\n<li><a href=\"https:\/\/sdic-tcca.hbkaixuan.cn\/tech.html\">Download MSDS and COA Documents<\/a><\/li>\n<li><a href=\"https:\/\/sdic-tcca.hbkaixuan.cn\/?p=7\">TCCA 90% Slow-Release Tablets Specifications<\/a><\/li>\n<li><a href=\"https:\/\/sdic-tcca.hbkaixuan.cn\/?p=6\">SDIC Fast-Dissolving Chlorine Donor Overview<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Complete safety guide for storing and shipping Trichloroisocyanuric Acid (TCCA) and Sodium Dichloroisocyanurate (SDIC) \u2014 UN hazard classifications, temperature limits, incompatible materials, and maritime IMDG requirements for international distributors.<\/p>\n","protected":false},"author":1,"featured_media":20,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-12","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/sdic-tcca.hbkaixuan.cn\/index.php?rest_route=\/wp\/v2\/posts\/12","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sdic-tcca.hbkaixuan.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sdic-tcca.hbkaixuan.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sdic-tcca.hbkaixuan.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sdic-tcca.hbkaixuan.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12"}],"version-history":[{"count":0,"href":"https:\/\/sdic-tcca.hbkaixuan.cn\/index.php?rest_route=\/wp\/v2\/posts\/12\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sdic-tcca.hbkaixuan.cn\/index.php?rest_route=\/wp\/v2\/media\/20"}],"wp:attachment":[{"href":"https:\/\/sdic-tcca.hbkaixuan.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sdic-tcca.hbkaixuan.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sdic-tcca.hbkaixuan.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}