Thermothal® P

Safety Information SheetDatasheet

Datasheet updated 2025-04-04 12:39 (supersedes all previous editions)

This Safety Information Sheet provides essential health, safety, and environmental information for Thermothal® P, a nickel-based alloy primarily used in thermocouple applications due to its reliable thermoelectric properties and high-temperature oxidation resistance. Thermothal® P is typically used as the positive leg in Type K thermocouples and is suitable for a wide range of temperature measurement environments. The information herein is intended to assist users in the safe handling, storage, processing, and disposal of Thermothal® P in various industrial and manufacturing settings. While Thermothal® P is considered stable under normal conditions, appropriate precautions should always be taken to minimize risks during its use. This document is not a substitute for regulatory compliance or a Material Datasheet, but complements it by offering additional safety guidance specific to this material.

H-value:
H351 Warning; Suspected of causing cancer.
H317 Warning; May cause an allergic skin reaction.
H372 Danger; Causes damage to organs through prolonged or repeated exposure.

Injurious to health properties:
Nickel limited evidence of a carcinogenic effect.
Nickel may cause sensitization by skin contact.
Chromium may cause contact eczema.

Suitable extinguishing media: Use suitable extinguishing media for surrounding materials and type of fire.

Extinguishing media which shall not be used for safety reasons: None known.

Special exposure hazards arising from the substance or preparation itself, combustion products, resulting gases: None known.

Special protective equipment for firefighters: Wear fully protective impervious suit.

Exposure limit values

Hygiene standards and exposure limits may differ from country to country. Check those currently applying in your country and comply with regulations. Examples of exposure limit applying Sweden are given below:

Compound	Exposure limit	Type of value
Nickel	0,5 mg/m3	NGV (Total)
Chromium	0,5 mg/m3	NGV (Total)

NGV = Level Limit Value, sanitary limit value for exposure during one working day.

Exposure controls

Preventive action: Good general ventilation is recommended.

Respiratory protection: Use when necessary.

Hand protection: Protective gloves, avoid skin contact.

Eye protection: Wear safety glasses when tooling.

Skin protection: Wear suitable protective clothing and protective shoes.

Inhalation: Dust may cause sensitive persons problem with respiration.

Skin contact: May cause contact eczema and allergy when repeatedly skin contact.

Eye contact: Product dust may cause temporary mechanical eye irritation.

Ingestion: Not a normal route of exposure.

Nickel

Nickel is the most commonly occurring contact allergen. According to surveys from the USA, Italy, Denmark, Finland and Sweden, 8-22 % of women and 0.3-3 % of men develop hypersensitivity to nickel (National Chemicals Inspectorate, Sweden, 1995). The main method of exposure is contact with metallic nickel and/or nickel alloys.

Exposure to nickel has been linked to a risk of lung cancer and nasal cancer, but it has not been possible to identify the form in which nickel is carcinogenic.

The EU has classified metallic nickel as Category 3 carcinogens with an R40 risk phrase – Limited evidence of a carcinogenic effect.

Chromium

Prolonged contact with chromium compounds or with materials containing chromium can cause allergic reactions. Based on research, it is believed that this only occurs with contact with chromium (VI). Allergic skin reactions are particularly common in work places where work involves the handling of chromates, dichromates and chromic acid fumes, but chromium allergies have also been observed in housewives, cement workers, furriers and joiners (National Chemicals Inspectorate, Sweden, 1995). One type of contact eczema, ‘cement eczema’, is thought to be caused by chromium (VI) in cement.

People who have developed chromium allergies also tend to be hypersensitive to other metals, mainly nickel and cobalt (National Chemicals Inspectorate, Sweden, 1995).

Information in this Safety Information Sheet is based on the form the product is released on the market.

List of relevant H phrases:
H351 Warning; Suspected of causing cancer.
H317 Warning; May cause an allergic skin reaction.
H372 Danger; Causes damage to organs through prolonged or repeated exposure.

Declaration
The information given in this safety information sheet is based on the present level of our knowledge and experience. The data sheet describes the products with respect to safety requirements. The data given is not intended as a confirmation of product properties and does not constitute a legal contractual relationship, nor should it be used as the basis for ordering these products.

Revision:
Revised in accordance with CLP regulation. EC1272/2008.

Compounds	EINECS-no.	CAS-no.	Content %	H-value
Nickel	231-111-4	7440-02-0	Balance	H351 H317 H372
Chromium	231-157-5	7440-47-3	Max 10

Thermothal® P

Identification of the substance/preparation and the company/undertaking

Hazards identification

Composition/information on ingredients

First aid measures

Fire-fighting measures

Accidental release measures

Handling and storage

Exposure controls/personal protection

Physical and mechanical properties

Stability and reactivity

Toxicological

Ecological information

Disposal considerations

Transport information

Regulatory information

Other information