Silica Gel Cat Litter

Material Composition Assumptions

The assessment assumes a standard four-kilogram bag containing primarily amorphous silica gel derived from silicon dioxide. The composition includes approximately 3,800 grams (95%) of processed silica gel crystals with porous structure formation, 150 grams (3.8%) of residual silica sand base material, and 50 grams (1.2%) of multi-layer plastic packaging materials. The gel structure results from controlled heating processes that create moisture-absorbing properties while maintaining crystal integrity throughout extended usage periods.

Manufacturing Geography

Primary production occurs in China, where abundant silica deposits and established chemical processing infrastructure support large-scale manufacturing operations. The Chinese electrical grid operates at 555 gCO2e per kilowatt-hour, contributing significantly to production-phase emissions during energy-intensive heating and gel formation processes. Manufacturing concentration in this region reflects cost advantages and proximity to raw material sources, though this creates substantial transportation emissions for products distributed to North American and European markets.

Regional Variation

Manufacturing Region	Grid Intensity	Estimated CCI Score	Adjustment vs Default
China	555 gCO2e/kWh	42	Default baseline
United States	386 gCO2e/kWh	38	-9.5% reduction
Germany	366 gCO2e/kWh	37	-11.9% reduction
Canada	120 gCO2e/kWh	29	-31.0% reduction
Norway	18 gCO2e/kWh	24	-42.9% reduction

Provenance Override Guidance

1. Submit verified electricity grid mix data and renewable energy procurement documentation from manufacturing facilities to adjust energy-related emissions calculations.

2. Provide detailed transportation logistics including shipping methods, distances, and fuel consumption data for routes from production facilities to distribution centers.

3. Supply mining location specifics and extraction methodology documentation to refine upstream silica sourcing emission factors beyond generic industry averages.

4. Document packaging specifications including material weights, recycled content percentages, and end-of-life processing capabilities for distribution packaging components.

5. Furnish production process efficiency metrics including energy consumption per kilogram, waste heat recovery systems, and process optimization measures implemented at manufacturing facilities.

Methodology Notes

• The CCI score represents cradle-to-gate emissions for a typical four-kilogram retail package including raw material extraction through manufacturing completion
• Scope 3 dominance reflects upstream mining operations, international transportation requirements, and end-of-life landfill persistence impacts
• Functional unit assessment considers extended usage duration compared to daily-change alternatives, reducing total annual consumption requirements
• Assessment excludes consumer transportation from retail locations and household storage energy requirements during usage periods
• Limited availability of facility-specific process data necessitates reliance on industry-average emission factors for specialized gel formation processes