Sulfuric acid
Oxidize sulfur through a separate contact catalyst stage and absorb into controlled acid stock; discovery hypothesis only.
Discovered · unresearchedClosure: OpenInventory incomplete
Capability requirements and tolerances
Consumer-specific numerical targets, quantities and acceptance limits remain open or incompletely reviewed. No smartphone-grade suitability is claimed. Distinct capability tiers require their own making route and qualification.
Making steps · draft selected for navigation; not a validated fabrication specification.
Known Parts and Tools
The selected route supplies this page's inventory and the map's dependency links from one record. Further requirements may be missing; review flags do not prove physical suitability.
| Requirement | Role | Use | Relationship status |
|---|---|---|---|
| Sulfur feed | Part | consumed feed/processing stock or incorporated material; exact stock and losses unknown | Cycle-checked; compatibility unknown |
| Prepared air feed | Part | consumed feed/processing stock or incorporated material; exact stock and losses unknown | Cycle-checked; compatibility unknown |
| Sulfur oxidation catalyst | Part | consumed feed/processing stock or incorporated material; exact stock and losses unknown | Cycle-checked; compatibility unknown |
| Batch reaction vessel | Tool | reused fabrication/verification tool | Cycle-checked; compatibility unknown |
| Gas handling | Tool | reused fabrication/verification tool | Cycle-checked; compatibility unknown |
| Pure water | Part | consumed feed/processing stock or incorporated material; exact stock and losses unknown | Cycle-checked; compatibility unknown |
| Temperature instruments | Tool | reused fabrication/verification tool | Cycle-checked; compatibility unknown |
| Analytical instruments | Tool | reused fabrication/verification tool | Cycle-checked; compatibility unknown |
| Ventilation | Tool | reused fabrication/verification tool | Cycle-checked; compatibility unknown |
| Chemical protection equipment | Tool | reused fabrication/verification tool | Cycle-checked; compatibility unknown |
| Chemical effluent collection equipment | Tool | reused fabrication/verification tool | Cycle-checked; compatibility unknown |
Making outline
- Oxidize sulfur through a separate contact catalyst stage and absorb into controlled acid stock
- Keep separated intermediate states and retain/assay a witness sample; process settings and acceptance limits remain unknown.
What remains unresolved
- Identified requirement; no researched making route or qualified output yet.
- Complete inventory, source-supported recipe, independent acceptance, caller demands, stock/loss and availability remain unreviewed.
- Absorption medium/seed acid, catalyst manufacture, corrosion and exotherm controls remain an explicit first-acid bootstrap problem; no executable selected recipe.
Proposed capability specification
{
"function": "Sulfuric acid",
"quantity": "NOT_RESEARCHED",
"purity_dimensions_performance": "NOT_RESEARCHED",
"acceptance_and_calibration": "NOT_RESEARCHED"
}Earlier research provenance
- 2026-10-09 materials breadth pass 03
Used by
Items that directly require this item in their selected inventory.
Paths from Smartphone
No selected physical path from Smartphone reaches this item. It is outside the current root map; no path is invented.