Heat transfer fluids

LM-7

Name: LM-7
Brand: Glacier Coolant

Wide-temperature alkane coolant

An anhydrous industrial fluid that the catalogue presents as a low-temperature secondary refrigerant with a wide operating range, plus a dedicated corrosion-protection formulation.

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LM-7 — illustrative sample representation — Illustrative representation, not a photograph of the supplied product. Confirm appearance and packaging on the current model TDS.

CATALOGUE TEMPERATURE REFERENCE−70°C to +150°C

Formulation

Modified alkanes

A closer look.

Low-temperature secondary refrigerant
Water-insoluble
Carbon steel, stainless steel and copper

Model and property references

Viscosity at 20°C: 1.10 mPa·s
Density at 20°C: 0.830–0.870 g/cm³
Specific heat at 20°C: 0.407
Thermal conductivity at 20°C: 0.13 W/m·K
Flash point: Higher than +57°C
Boiling point: Higher than +180°C
Freezing point: Lower than −80°C

LM-7 stock-solution properties (catalogue reference)

Property	Value
Density at 20°C	0.830–0.870 g/cm³
Viscosity at 20°C	1.10 mPa·s (cP)
Specific heat at 20°C	0.407
Thermal conductivity at 20°C	0.13 W/m·K
Boiling point	Higher than +180°C
Freezing point	Lower than −80°C
Flash point	Higher than +57°C

Anhydrous formulation. The catalogue calls for a dry, nitrogen-closed system.

Reference values from the Chaoyang Guangda LM catalogue — typical figures rather than guaranteed limits. Confirm the exact model and concentration on the current model TDS before specifying.

View source: catalogue p.20 (PDF p.24)

Before you specify

Classified as a hazardous chemical. The catalogue calls for a dry, nitrogen-closed system. Add directly; do not mix with other secondary refrigerants.