Resources ·

Hydrogen Chloride (HCl) Gas Hazards and WANDI EDW500 Explosion-Proof Portable Gas Detector Complete Guide

Hydrogen chloride (HCl) is a highly toxic corrosive gas generated in semiconductor etching, metal pickling, and PVC incineration. The WANDI EDW500, IECEx-certified for 5-gas simultaneous detection, provides early HCl leak detection from 0.5 ppm to protect workers.

Home / Resources / Hydrogen Chloride (HCl) Gas Hazards and WANDI EDW500 Explosion-Proof Portable Gas Detector Complete Guide

What Is Hydrogen Chloride (HCl)? — The Corrosive Toxic Gas in Semiconductor and Chemical Processes

Hydrogen chloride (HCl) is a colorless, highly corrosive gas with a pungent odor. At high concentrations it produces visible white fumes (hydrochloric acid mist), but at low concentrations it is invisible. Major sources include ①semiconductor and LCD etching processes, ②thermal decomposition of PVC/plastics during incineration, ③chemical synthesis, and ④metal pickling in steel and plating factories.

염화수소 관련 화학 실험실 및 제조 공정 환경
HCl이 사용되는 화학·제조 공정에서의 가스 모니터링 중요성 (출처: Unsplash / Alex)

HCl Health Effects by Concentration

Concentration (ppm)DurationHealth Effects
1 ppm8 hr TWAKorean OSHA permissible limit
0.5–1 ppmShort-termEye, nose, throat irritation onset
5 ppmShort-termSevere respiratory irritation, coughing, tearing
35 ppmShort-termSerious lung damage, pulmonary edema risk
50 ppm30+ minPulmonary hemorrhage, respiratory failure, death risk
100 ppmImmediateIDLH — immediate life/health threat
염화수소 측정 필요 환경 정수 시스템 및 화학 공정
반도체·화학 공정에서 HCl 가스 모니터링 시스템 필요성 (출처: Unsplash / RephiLe water)

How WANDI EDW500 Could Have Prevented HCl Accidents

  1. 10.5 ppm early warning: EDW500 alerts before HCl reaches irritation threshold, enabling immediate worker evacuation.
  2. 2IECEx Zone 0 certified: Safe for use in clean rooms and chemical plants with concurrent flammable gas atmospheres.
  3. 35-gas simultaneous detection: HCl + O₂ + EX + CO + H₂S monitored together for comprehensive process hazard coverage.
완디 레이먼드코리아 클린룸 복합가스 측정기 FIX800 설치 사례
클린룸 환경 WANDI 가스감지 시스템 설치 사례 — 레이먼드코리아 (대전)

WANDI EDW500 Specifications for HCl Detection

SpecificationEDW500 (HCl configuration)
Gas detectionHCl, O₂, EX, CO, H₂S — up to 5 simultaneously
Explosion-proofIECEx TPS 25.0057X / Ex da ia IIC T4 Ga
HCl range0–50 ppm
ConnectivityWi-Fi / 4G LTE cloud real-time upload

A Closer Look at the WANDI EDW500

Below are real photos of the WANDI EDW500 portable multi-gas detector and its use on site.

WANDI EDW500 portable multi-gas detector
WANDI EDW500 portable multi-gas detector
WANDI EDW500 product and features
EDW500 — simultaneous 5-gas monitoring for site safety

FAQ

Hydrogen chloride (HCl) is a colorless, highly corrosive gas with a pungent odor. At high concentrations it produces visible white fumes (hydrochloric acid mist), but at low concentrations it is invis...

#hydrogen chloride #HCl gas detector #EDW500 #semiconductor gas safety #IECEx portable gas monitor