CAS 7723-14-0 · K-REACH · Republic of Korea

Phosphorus (yellow / white / red) under K-REACH

P4 (white) / Pn (red) · 黄磷 / 白磷 / 红磷

Status: Registered. Phosphorus is registered under K-REACH. **Yellow / white phosphorus on Korea TCCA Toxic Chemicals list** (verify against the current TCCA Toxic Chemicals list at https://www.nics.go.kr/ and NICS toxic-chemical database before relying); red phosphorus typically not on TCCA. NOT on Korean Drug Management Act precursor list. NO active Korean AD/CVD case on Chinese-origin phosphorus currently (verify against https://www.kita.org/ or Korea Trade Commission filings before invoicing). Korea has limited domestic phosphorus production; structurally net-importer for Korean semiconductor electronic-grade red phosphorus + flame-retardant + matchstick / pyrotechnic / fertiliser sectors. KCFTA preferential zero-duty applies for Chinese-origin imports.

K-REACH treats yellow / white phosphorus as a **TCCA Toxic Chemicals scheduled substance** (TCCA Handling Permit at destination facility); red phosphorus typically not on TCCA. Korea net-importer with significant Chinese-origin import dependency for semiconductor electronic-grade red phosphorus. NO active Korean AD/CVD case. **Phosphorus distinguishing pattern across all 5 regimes**: Two industrially-relevant allotropes share CAS 7723-14-0; yellow / white phosphorus (P4 tetrahedral, pyrophoric, highly toxic) and red phosphorus (Pn polymeric, more stable, lower hazard) + production via electric-arc furnace from phosphate rock + silica + coke at ~1500 C yielding white phosphorus, optional thermal conversion to red + closes phosphorus chain upstream of H3PO4 batch 64 + DAP batch 30 + match / pyrotechnic / smoke-flare / semiconductor-doping (electronic-grade red phosphorus) plus PCl3 + PCl5 captive feedstock plus flame-retardant downstream chains + two-allotrope hazard profile (white Pyr. Sol. 1 + Acute Tox. 1 + Skin Corr. 1B + STOT RE 2 + Aquatic Acute 1; red Flam. Sol. 1 + Aquatic Acute 1) + IARC not classified + US OSHA PEL 0.1 mg/m3 + EPA RMP 100 lb white P + white P NOT on Cal Prop 65 (verify against OEHHA) + DEA List I 21 CFR 1310.02(a) red P + hypophosphorous acid + salts (meth precursors) + historical US AD on Chinese yellow P at access.trade.gov (verify current case-number + cash-deposit rate before invoicing) + EU previous AD Reg (EC) 2010/2003 historic + REACH Annex XVII matches / lighters restriction on white P + China dominates global production (Yunnan + Guizhou + Sichuan electric-arc clusters) + China Catalog of Hazardous Chemicals AND Highly Toxic Chemicals (yellow / white) + seasonal export-quota + export-licensing + Australian SUSMP Schedule 7 (yellow / white) + Korean TCCA Toxic Chemicals (yellow / white).