What this tab covers How it is regulated and what could disrupt supply: hazard classification, rules in the EU, US and India, anti-dumping duties and other trade measures, and supply-risk notes.
Hazards
Classification
UN number
Key risks
Skin and eye irritation (category 2) for neutral grades; skin corrosion for metasilicates and low-ratio grades
UN3253 (metasilicate); solutions usually not regulated
Alkaline burns and eye damage; slippery spills.
Main rules
Where
Rule
Effect
EU
REACH registration; soda ash production in EU ETS
Carbon cost passes through soda ash
US
Generally recognised as safe uses in some food applications (indicative)
Allows food and water uses
India
Rule
Effect
BIS IS 381 specification for sodium silicate (indicative)
Sets commercial grades
State pollution control board consent for furnaces
Air emission limits for small furnaces
Trade measures
None found
Supply risk
Low: raw materials are abundant and producers are spread across many countries. Local supply depends on soda ash availability.