Boiling temperature

Boiling point is the temperature at which a liquid becomes a gas at a given atmospheric pressure.
This fundamental parameter is used to characterize the volatility, purity, and thermal stability of a liquid. It is commonly used in the quality control of solvents, plant extracts, essential oils, active ingredients, and chemical products .

Boiling temperature analysis makes it possible to identify distillation points , detect any volatile impurities and guarantee regulatory compliance of products intended for cosmetic, food or industrial formulation.

Principle and method of analysis

Boiling temperature measurement is carried out using two main methods:

• Classical method : observation of the temperature at which the liquid reaches a visible boiling state under standard atmospheric pressure (1013 hPa).
• Distillation : progressive separation of volatile components according to their boiling temperature, used for complex mixtures or technical solutions .

These analyses can be carried out under partial vacuum or controlled pressure in order to assess the volatility of heat-sensitive substances.
They are particularly suitable for the following matrices:

• organic solvents,
• essential oils and plant extracts,
• food additives,
• liquid polymers and resins,
• chemicals and technical formulations.

For further information, also see:

• flash point analysis to determine the flammability temperature,
• thermogravimetry (TGA) to monitor mass loss as a function of temperature,
• and differential scanning calorimetry (DSC) to study thermal transitions associated with boiling and melting.

Industrial applications

Boiling temperature analysis is essential in several sectors of activity:

• Food and nutraceuticals : control of liquid extracts, flavorings and solvents used in the production of natural ingredients and food supplements.
• Cosmetics : evaluation of solvents, oils or esters used in the composition of perfumes, lotions and volatile formulations.
• Chemistry of materials and polymers : characterization of solvents, plasticizers and formulating agents to ensure heat stability.
• Environment and safety : determination of volatility properties for the classification of substances according to CLP regulations (Classification, Labelling, Packaging).
• Packaging and technical products : verification of the thermal stability of solvents used in inks, varnishes or adhesives.

This measure helps to optimize formulation processes , prevent thermal risks and guarantee the conformity of finished products .

Analytical interest and complementarity

The measurement of boiling temperature is often integrated into a set of thermal and physicochemical analyses aimed at evaluating the behavior of a product under heat:

• Melting point to characterize the solid/liquid transition,
• Cloud point to measure low temperature stability,
• Pour point to determine the limit temperature of use,
• Melt Flow Index (MFI) for molten polymers,
• and study of thermal stability to monitor thermal degradation.

This additional data provides a global vision of the thermal behavior, purity and performance of raw materials and formulations .

YesWeLab Services

YesWeLab collaborates with a network of ISO 17025 and/or COFRAC accredited partner laboratories , specialized in thermal and physicochemical analyses .
Our experts will assist you in choosing the method best suited to your matrix (distillation, direct method, vacuum analysis).

Thanks to the YesWeLab digital platform , manufacturers can order their analyses, track their samples and consult their reports with complete transparency.
Since 2020, YesWeLab has been supporting the cosmetics, food, chemical and environmental sectors in controlling the quality and thermal safety of their products.

For any specific requests or quotes , contact our scientific team today.