Heat transfer fluids

LM-8 series

Name: LM-8 series
Brand: Glacier Coolant

Non-combustible, salt-based coolants

A non-combustible coolant family with variants for aluminium compatibility and elevated-temperature operation. Select the exact concentration and model for the process.

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An LM-8 labelled sample flask containing yellow-green coolant — LM-8 sample. Other formulations and concentrations may differ in appearance.

CATALOGUE TEMPERATURE REFERENCE−50°C to +100°C · model-dependent

Formulation

Modified organic acid salts

A closer look.

No flash point listed
Low-volatility salt formulation
Multiple operating-temperature grades

Model and property references

LM-8 / LM-8L: −50 to +50°C
LM-8G / LM-8GL: −50 to +100°C
LM-850 / LM-850L: −40 to +50°C
LM-8 stock viscosity at 20°C: 3.78 cP

LM-8 series catalogue reference values (Table 9)

Model	Temperature range (°C)	Freezing point (°C)	Viscosity (cP)	Density (g/cm³)	Specific heat (cal/g·°C)	Thermal conductivity (W/m·K)
LM-8	−50 to +50	−60	3.78	1.360	0.585 cal/(g·°C) = 2.45 kJ/(kg·K)	0.464
LM-8L	−50 to +50	−60	3.78	1.360	0.585 cal/(g·°C) = 2.45 kJ/(kg·K)	0.464
LM-8G	−50 to +100	−60	3.78	1.360	0.585 cal/(g·°C) = 2.45 kJ/(kg·K)	0.464
LM-8GL	−50 to +100	−60	3.78	1.360	0.585 cal/(g·°C) = 2.45 kJ/(kg·K)	0.464
LM-850	−40 to +50	−50	3.46	1.337	0.585 cal/(g·°C) = 2.45 kJ/(kg·K)	0.477
LM-850L	−40 to +50	−50	3.46	1.337	0.585 cal/(g·°C) = 2.45 kJ/(kg·K)	0.477
LM-850G	−40 to +100	−50	3.46	1.337	0.585 cal/(g·°C) = 2.45 kJ/(kg·K)	0.477
LM-850GL	−40 to +100	−50	3.46	1.337	0.585 cal/(g·°C) = 2.45 kJ/(kg·K)	0.477
LM-845	−35 to +100	−45	3.31	1.318	0.634 cal/(g·°C) = 2.65 kJ/(kg·K)	0.482
LM-840	−30 to +50	−40	2.97	1.293	0.643 cal/(g·°C) = 2.69 kJ/(kg·K)	0.490

All properties are printed at 20°C. The catalogue lists no flash point for this series, and states aluminium compatibility only for the L and GL variants.

Standard packaging: 30 kg plastic drum; 1400 kg ton drum; bulk tanker above 10 t

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

Aluminium compatibility is specific to L/GL variants. Non-combustibility does not remove the need for a current SDS and material-compatibility review.

FROM FORMULATION TO APPLICATION

Salt chemistry. Model-specific performance.

LM-8 is a modified organic-acid-salt coolant family for industrial secondary refrigeration. The base, L, G and GL designations should not be treated as interchangeable.

01 / APPLICATION NOTE

Review temperature and metallurgy together

The L and GL variants address aluminium compatibility; the G and GL variants address different temperature requirements. Use the catalogue model references to establish the shortlist.

02 / APPLICATION NOTE

Evaluate the actual concentration

Viscosity and heat-transfer properties depend on concentration and temperature. Request the relevant property curves rather than selecting solely on a room-temperature stock-fluid value.

REFERENCED MODELS

LM-8 · LM-8L · LM-8G · LM-8GL

About these product references

Application notes are adapted from Glacier’s original product information. Unless a table states otherwise, numeric specifications follow the supplied catalogue. For the confirmed specification, obtain the current model-specific TDS and SDS. Links below point to the original source pages, not new technical documents.