Safety data sheet reference · CAS 497-19-8
Sodium carbonate SDS
also: sodium carbonate MSDS · safety data sheet · Na2CO3 · CAS 497-19-8 · EC 207-838-8 · soda ash · washing soda
Official PDF from supplier
This page is a reference, not the legal document.
CAS number
497-19-8
EC number
207-838-8
CLP Annex VI index
011-005-00-2
Molecular formula
CNa2O3
Molar mass
105.988 g/mol
§ 02 · Hazards identification
Harmonised EU classification
CLP Annex VI · Index 011-005-00-2. A supplier SDS may add self-classified hazards — this is the legal minimum.
Precautionary statements
§ 07 · Handling and storage
Computed storage verdict
Derived from CLP Annex VI classification and CAMEO reactive-group data — not copied from a PDF.
Full interactive verdict — reactions, gas release on contact, ADR forms →
§ 09 · Physical and chemical properties
Measured properties
The full physical-property table (melting/boiling point, flash point, explosion limits, vapour pressure, density) is being populated for this substance from ECHA registration data and will appear here as it lands.
§ 13 · Disposal considerations
Dispose of waste and residues in accordance with local and national regulations — in the EU under the Waste Framework Directive 2008/98/EC. Never discharge to drains or municipal waste; hand contaminated packaging and unused product to an authorised waste-disposal company. The supplier's SDS section 13 lists the applicable waste codes for the specific product.
MSDS vs SDS
MSDS vs SDS: is there a difference?
MSDS (Material Safety Data Sheet) is the older name for the same document. In the US, OSHA's Hazard Communication Standard (2012) adopted the GHS-standardised 16-section Safety Data Sheet; in the EU the format is set by REACH Annex II. So a "sodium carbonate MSDS" and a "sodium carbonate SDS" refer to the same document — today it is issued as an SDS. Full breakdown of the differences →
Compliance hub
From classification to SDS
The classification above corresponds to Section 2 of a Safety Data Sheet. Learn how a compliant 16-section SDS is structured and authored →
GHS label maker
Build the label for sodium carbonate
Pictograms, signal word and H-statements combined into a compliant label layout →
§ 16 · Sources
- Classification: Regulation (EC) No 1272/2008 (CLP), Annex VI
- Transport: UN ADR 2025 (UNECE), Table A
- Reactivity: NOAA CAMEO Chemicals reactive-group matrix (public domain)
- Physical properties: CAMEO Chemicals (NOAA, public domain) — per-value source references stored in the database
- Substance data: PubChem · ECHA
Reference aid only. This page summarises the harmonised EU classification and computed storage guidance — it is not a Safety Data Sheet and does not replace one. Always verify hazards, handling and storage against the supplier's SDS (sections 7 and 10) and local regulations before use. Page updated 2026-07-27.
Frequently asked questions
Is an MSDS the same as an SDS?
In practice, yes. MSDS (Material Safety Data Sheet) is the older name for the same document. In the US, OSHA's Hazard Communication Standard (2012) adopted the GHS-standardised 16-section Safety Data Sheet; in the EU the SDS format is set by REACH Annex II. A document you find labelled "sodium carbonate MSDS" is today issued as an SDS.
What GHS pictograms does sodium carbonate require?
Under the harmonised EU classification (CLP Annex VI), sodium carbonate carries GHS07 with the signal word "Warning". Hazard statements: H319. A supplier's SDS may add self-classified hazards on top of this harmonised minimum.
Where can I download an official sodium carbonate SDS PDF?
From your own supplier — an SDS is issued per product and supplier, so the correct PDF for an inspection is the one matching the product you actually purchased. The supplier links on this page lead to the official SDS libraries of major distributors.