subcritical extraction

Subcritical extraction is an appropriate means of extracting heat-sensitive, easily oxidized compounds,while maintaining the purity and selectivity of the extracted substances.

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Product Description

We supply pharmaceutical-grade subcritical extraction machine to extraction facilities that prioritize both purity and process safety. Our -42°C boiling point solvent delivers superior terpene retention and energy efficiency compared to traditional hydrocarbon methods.

Technical Advantages for Extraction Professionals

✔ 4.4MPa Critical Pressure – Ideal for low-temperature subcritical operation
✔ 329kJ/kg Vaporization Heat – 30% faster recovery than butane systems
✔ Non-Polar Solvent (ε=1.69) – Selective for terpenes and neutral compounds
✔ 9.5% Upper Explosion Limit – Safer handling than alternative solvents

Subcritical CO2 Extraction Machine 3

features

Why Choose Our subcritical extraction machine

• Preserves Heat-Sensitive Compounds – Full-spectrum extracts with intact terpenes
• GMP-Compliant Supply Chain – Batch-traceable cylinders with certificates of analysis
• Optimized for:

CBD/THC isolation (89-92% recovery)

Delicate flavor extractions

High-value botanical concentrates

Subcritical CO2 Extraction Machine 2

Product parameters

Propane	Butane
Molecular Formula	C3H8
Molecular Weight	44
Boiling Point ºC	-42
Pressure Mpa at 20ºC	0.83
Critical Temp ºC	95.7
Critical Pressure MPa	4.4
Liquid Density: kg/L at 25ºC	0.49
Gas Density: kg/m 25ºC	20.15
Dielectric Constant	1.69
Latent Heat of Vaporization KJ/kg at 30ºC	329
Explosion Limit	2.3%~9.5%
Toxicity LC50(mg/m3)	minor
Appearance	colorless, odor