CAS 7783-06-4 · AICIS · Australia

Hydrogen sulfide (H2S) under AICIS

H2S · 硫化氢

Status: Listed. Hydrogen sulfide is on the AICIS Inventory of Industrial Chemicals as a Listed Industrial Chemical. **SUSMP / Poisons Standard Schedule 7 (dangerous poison) applies at concentrated industrial-grade** (verify the current Schedule entry against https://www.tga.gov.au/access-and-supply/poisons-standard before relying). NOT on Australian Drug Control Act precursor list. NO active Australian AD/CVD case on Chinese-origin hydrogen sulfide. **Australia is structurally net-zero merchant trader of H2S** (captive intermediate at sour-gas plants; INPEX Ichthys offshore + Santos GLNG + Origin Energy APLNG sour-gas Claus-process captive); merchant cargo rare. ChAFTA preferential zero-duty applies (rare imports).

AICIS treats hydrogen sulfide as a routine listed industrial chemical with **high hazard profile** (Acute Tox. 2 inhalation + Flam. Gas 1A + Aquatic Acute 1; SUSMP Schedule 7 dangerous poison). NO active Australian AD/CVD case. ChAFTA preferential zero-duty. Australia structurally net-zero merchant H2S trader (captive at INPEX Ichthys + Santos GLNG + Origin Energy APLNG sour-gas Claus-process captive).

Listing and threshold

Substance Hydrogen sulfide (H2S) (CAS 7783-06-4), H2S
Regime Australian Industrial Chemicals Introduction Scheme (AICIS), administered by the Department of Health
Jurisdiction Australia
Status Listed
Tonnage threshold AICIS introducer registration required for >100 kg/year

Classifications under this regime

  • Listed Industrial Chemical on AICIS Inventory
  • Australian GHS classification: Acute Tox. 2 inhalation + Flam. Gas 1A + Press. Gas + Aquatic Acute 1
  • **SUSMP / Poisons Standard Schedule 7 (dangerous poison)** at concentrated industrial-grade (verify the current Schedule entry against https://www.tga.gov.au/access-and-supply/poisons-standard before relying)
  • NOT on Australian Drug Control Act precursor list
  • ADG 7.7: UN 1053 Class 2.3 (toxic gas) + 2.1 (flammable gas)
  • Safe Work Australia WES: 10 ppm 8-hr TWA + 15 ppm STEL (verify against the current Safe Work Australia Workplace Exposure Standards at https://www.safeworkaustralia.gov.au/exposure-standards before relying)
  • IARC: Not classified

Restrictions and conditions of use

  • NO active Australian AD/CVD case on Chinese hydrogen sulfide currently
  • WHS Regulation 2011 (Acute Tox. 2 inhalation + Flam. Gas 1A hazard profile)
  • ChAFTA preferential zero-duty applies (HS 281110)
  • SUSMP Schedule 7 (dangerous poison) at concentrated industrial-grade
  • ADG 7.7 UN 1053 Class 2.3 + 2.1

Importer obligations

AICIS registration required. **Australia is structurally net-zero merchant trader of H2S** (captive intermediate at INPEX Ichthys offshore + Santos GLNG + Origin Energy APLNG sour-gas Claus-process captive); merchant cargo rare.

Required documents

  • AICIS registration certificate (annual)
  • WHS-compliant SDS (Acute Tox. 2 inhalation + Flam. Gas 1A hazard profile)
  • Customs entry (ICS / ABF) with HS 281110
  • ChAFTA Form CO
  • ADG 7.7 documentation for UN 1053 Class 2.3 + 2.1

Common compliance traps

The pitfalls that have bitten importers on this lane in the past. None of these is theoretical.

  • AICIS registration must be CURRENT at customs clearance
  • SUSMP Schedule 7 (dangerous poison)
  • NO active Australian AD/CVD case
  • ChAFTA preferential zero-duty applies
  • **Australia structurally net-zero merchant trader of H2S** (captive at INPEX Ichthys + Santos GLNG + Origin Energy APLNG)
  • ADG 7.7 UN 1053 Class 2.3 + 2.1

Where to read next

For substance-level identifiers (formula, molecular weight, SMILES, InChIKey), GHS hazard profile, IMDG transport class, and full sourcing reference for hydrogen sulfide (h2s), see the CAS 7783-06-4 sourcing reference.

For grade-by-grade buying notes, freight maths, supplier-tier pricing, and a worked landed-cost example, the hydrogen sulfide (h2s) cornerstone hub covers the full sourcing chain.

For the structure and history of AICIS, see the AICIS glossary entry.

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Read next

Cross-jurisdiction profile and sourcing references

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