SDS Section 10 (Tab "10 Stability-reactivity")
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In this section you discuss the stability of the product and the potential for hazardous reactions, both in use and if released to the environment.
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1. Reactivity — Enter properties that may be relevant to product stability. Provide test data for the product as a whole or, if unavailable, provide information on individual ingredients, or generally for members of the product class/family.
2. Chemical stability — Indicate whether the product is stable or unstable under ambient conditions, and under conditions of storage and handling. Identify any stabilizers used or which may need to be used. Note any physical appearance changes that signify changes in stability.
3. Possibility of hazardous reactions — Identify chemical reactions that may create hazardous conditions. Indicate whether the product will (1) polymerize or otherwise react exothermically to produce pressure and/or heat; or (2) produce other potentially hazardous conditions. Verify consistency of statements here with the GHS hazard classifications and statements on Tab "2 Hazards", and with the physical properties on Tab "9 Phys-chem props".
Avoid duplicating information already entered into the Reactivity field on this tab. (A possible approach would be to use this field to discuss the outcomes of items identified in the Reactivity field.)
4. Conditions to avoid — Identify conditions leading to instability. Indicate whether temperature, pressure, shock, static discharge, vibrations, sunlight, or other physical stresses might result in a hazardous situation. Check statements here for consistency with Tab "7 Handling-storage"; and with physical properties on Tab "9 Phys-chem props". Cross reference rather than duplicating contents of the earlier tabs.
As appropriate, advise on specific storage conditions, such as managing risks associated with explosive, flammable, evaporative, or corrosive environments; controlling ambient conditions; using stabilizers or antioxidants; and identifying requirements for ventilation, storage room design, vessel/container design, storage quantity limits, and packaging.
5. Incompatible materials — Identify specific chemicals or families of chemicals with which the product could react to explode, release toxic or flammable materials, or liberate excessive heat. Describe measures that can be taken to manage or avoid the hazards. Check for consistency and avoid duplication of the Precautions for safe handling field on Tab "7 Handling-storage".
6. Hazardous decomposition products — Specify any potentially hazardous decomposition products resulting from use, storage, spillage, and heating. (Identify hazardous materials resulting from combustion on Tab "5 Firefighting".)
7. Next, click on the “11.1 Toxicological” tab.
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SDS Section 10 (Tab "10 Stability-reactivity") – details
Contents
A4.3.10 SECTION 10: Stability and reactivity
A4.3.10.3 Possibility of hazardous reactions
A4.3.10.5 Incompatible materials
A4.3.10.6 Hazardous decomposition products
SECTION 10: Stability and reactivity
10.3. Possibility of hazardous reactions
10.6. Hazardous decomposition products
I. OSHA guidance
From: “OSHA Brief: Hazard Communication Standard: Safety Data Sheets”, https://www.osha.gov/Publications/OSHA3514.html.
This section describes the reactivity hazards of the chemical and the chemical stability information. This section is broken into three parts: reactivity, chemical stability, and other. The required information consists of:
Reactivity
· Description of the specific test data for the chemical(s). This data can be for a class or family of the chemical if such data adequately represent the anticipated hazard of the chemical(s), where available.
Chemical stability
· Indication of whether the chemical is stable or unstable under normal ambient temperature and conditions while in storage and being handled.
· Description of any stabilizers that may be needed to maintain chemical stability.
· Indication of any safety issues that may arise should the product change in physical appearance.
Other
· Indication of the possibility of hazardous reactions, including a statement whether the chemical will react or polymerize, which could release excess pressure or heat, or create other hazardous conditions. Also, a description of the conditions under which hazardous reactions may occur.
· List of all conditions that should be avoided (e.g., static discharge, shock, vibrations, or environmental conditions that may lead to hazardous conditions).
· List of all classes of incompatible materials (e.g., classes of chemicals or specific substances) with which the chemical could react to produce a hazardous situation.
· List of any known or anticipated hazardous decomposition products that could be produced because of use, storage, or heating. (Hazardous combustion products should also be included in Section 5 (Fire-Fighting Measures) of the SDS.)
II. UN guidance
From: United Nations (2017). Globally Harmonized System of Classification and Labelling of Chemicals (GHS), Seventh Revised Edition. https://unece.org/ghs-rev7-2017. United Nations. Reprinted with permission.
A4.3.10 SECTION 10: Stability and reactivity
A4.3.10.1 Reactivity
A4.3.10.1.1 Describe the reactivity hazards of the substance or mixture in this section. Provide specific test data for the substance or mixture as a whole, where available. However, the information may also be based on general data for the class or family of chemical if such data adequately represent the anticipated hazard of the substance or mixture.
A4.3.10.1.2 If data for mixtures are not available, ingredient data should be provided. In determining incompatibility, consider the substances, containers and contaminants that the substance or mixture might be exposed to during transportation, storage and use.
A4.3.10.2 Chemical stability
Indicate if the substance or mixture is stable or unstable under normal ambient and anticipated storage and handling conditions of temperature and pressure. Describe any stabilizers which are, or may need to be, used to maintain the product. Indicate the safety significance of any change in the physical appearance of the product.
A4.3.10.3 Possibility of hazardous reactions
If relevant, state if the substance or mixture will react or polymerize, releasing excess pressure or heat, or creating other hazardous conditions. Describe under what conditions the hazardous reactions may occur.
A4.3.10.4 Conditions to avoid
List conditions such as heat, pressure, shock, static discharge, vibrations or other physical stresses that might result in a hazardous situation.
A4.3.10.5 Incompatible materials
List classes of chemicals or specific substances with which the substance or mixture could react to produce a hazardous situation (e.g. explosion, release of toxic or flammable materials, liberation of excessive heat).
A4.3.10.6 Hazardous decomposition products
List known and reasonably anticipated hazardous decomposition products produced as a result of use, storage and heating. Hazardous combustion products should be included in section 5 (Fire-fighting measures) of the SDS.
III. European Union guidance
From: "COMMISSION REGULATION (EU) 2020/878 of 18 June 2020, amending Annex II to Regulation (EC) No 1907/2006 of the European Parliament and of the Council concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH)”. Official Journal of the European Union, 26.6.2020.
SECTION 10: Stability and reactivity
This section of the safety data sheet shall describe the stability of the substance or mixture and the possibility of hazardous reactions occurring under certain conditions of use and also if released into the environment, including, where appropriate, a reference to the test methods used. If it is stated that a particular property does not apply or if information on a particular property is not available, the reasons shall be given.
10.1. Reactivity
10.1.1. The reactivity hazards of the substance or mixture shall be described. Specific test data shall be provided for the substance or mixture as a whole, where available. However, the information may also be based on general data for the class or family of substance or mixture if such data adequately represent the anticipated hazard of the substance or mixture.
10.1.2. If data for mixtures are not available, data on substances in the mixture shall be provided. In determining incompatibility, the substances, containers and contaminants that the substance or mixture might be exposed to during transportation, storage and use shall be considered.
10.2. Chemical stability
It shall be indicated if the substance or mixture is stable or unstable under normal ambient and anticipated storage and handling conditions of temperature and pressure. Any stabilisers which are, or may need to be, used to maintain the chemical stability of the substance or mixture shall be described. The safety significance of any change in the physical appearance of the substance or mixture shall be indicated. As regards desensitised explosives, information on the shelf life and instructions on how to verify desensitisation shall be provided, and it shall be indicated that removal of the desensitising agent will turn the product into an explosive.
10.3. Possibility of hazardous reactions
If relevant, it shall be stated if the substance or mixture may react or polymerise, releasing excess pressure or heat, or creating other hazardous conditions. The conditions under which the hazardous reactions may occur shall be described.
10.4. Conditions to avoid
Conditions such as temperature, pressure, light, shock, static discharge, vibrations or other physical stresses that might result in a hazardous situation shall be listed (“conditions to avoid”) and if appropriate a brief description of measures to be taken to manage risks associated with such hazards shall be given. As regards desensitised explosives, information on measures to be taken in order to avoid the unintentional removal of the desensitising agent shall be provided, and conditions to avoid shall be listed if the substance or mixture is not sufficiently desensitised.
10.5. Incompatible materials
Families of substances or mixtures or specific substances, such as water, air, acids, bases, oxidising agents, with which the substance or mixture could react to produce a hazardous situation (like an explosion, a release of toxic or flammable materials, or a liberation of excessive heat), shall be listed and if appropriate a brief description of measures to be taken to manage risks associated with such hazards shall be given.
10.6. Hazardous decomposition products
Known and reasonably anticipated hazardous decomposition products produced as a result of use, storage, spill and heating shall be listed. Hazardous combustion products shall be included in section 5 of the safety data sheet.
IV. Health Canada guidance
From: "Technical Guidance on the Requirements of the Hazardous Products Act and the Hazardous Products Regulations, WHMIS 2015 Supplier Requirements", Cat.: H129-64/1-2016E-PDF. December 2016. ©2016, Her Majesty the Queen in Right of Canada, as represented by the Minister of Health.
This section describes the possibility of hazardous reactions of the product under certain conditions and provides information on chemical stability.
The required information consists of:
· Description of the reactivity hazards
· Indication of whether the hazardous product is stable or unstable under:
(a) normal ambient temperature and pressure conditions, and
(b) temperature and pressure conditions while in storage and being handled.
· Description of any stabilizers that may be needed
· Indication of any safety issues that may arise and which are associated with a change in physical appearance of the hazardous product
· Indication of the possibility of hazardous reactions, including a statement of whether the hazardous product will react or polymerize, and could release excess pressure or heat, or create other hazardous conditions. Also, a description of the conditions under which hazardous reactions may occur
· List of all conditions to avoid, including static discharge, shock, vibrations. Other examples of conditions to avoid may include contact with moisture or air, temperature, pressure, exposure to sunlight
· List of all classes of incompatible PMMS with which the hazardous product could react resulting in a hazardous situation
· List of any known or anticipated hazardous decomposition products that could be produced as a result of use, storage, or heating of the hazardous product.
In the event that a hazardous product meets the criteria of section 4.1 of the HPR (instructions for use involve the combination of the hazardous product with one or more product, mixture, material or substance (PMMS) which creates a new material or substance that poses a new or more severe hazard), the additional information that is required by this provision could be provided here or anywhere on the SDS.
[rev. 4.9.2021]
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