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172.18.0.1 · Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatibl...sodium hydroxide 1310-73-2
- Source
- pubchem
- Confidence
- medium
- Source URL
- https://pubchem.ncbi.nlm.nih.gov/compound/14798
- PubChem CID
- 14798
- Fetched (UTC)
- 2026-06-06T08:31:29.644227+00:00
- Updated (UTC)
- 2026-06-06T08:31:29.644227+00:00
- TTL
- 180 days
- Content hash
64aecbd412e3682d- Verified by
- —
Diff
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Synonyms
SODIUM HYDROXIDE 1310-73-2 Caustic soda Sodium hydrate Aetznatron Soda lye White caustic Soda, caustic Natriumhydroxid Rohrputz Plung Collo-Grillrein Collo-Tapetta Sodium hydroxide (Na(OH)) Fuers Rohr Rohrreiniger Rofix Hydroxyde de sodium Natriumhydroxyde Soda, hydrate Sodium hydroxide dimer
Record content
These are the fields that get used when generating an SDS. Edit them via Recheck (PubChem) or Upload (your data) — direct editing is intentionally not supported; the audit trail is the cache row's data_source + updated_at.
GHS classification
- Signal
- —
- Pictograms
- GHS05 GHS07 GHS08
- Classes
- Met. Corr. 1 (47.5%)
- Skin Corr. 1A (> 99.9%)
- Eye Dam. 1 (44.1%)
- Eye Irrit. 2 (36.6%)
- Met. Corr. 1 (100%)
- Skin Corr. 1B (100%)
- Eye Dam. 1 (100%)
- Specific target organ toxicity (single exposure) - category 3
- Skin corrosion - category 1A
- Skin corrosion/irritation - Category 1
- Serious eye damage/eye irritation - Category 1
- Specific target organ toxicity - Single exposure - Category 1 (respiratory system)
- Hazardous to the aquatic environment (Acute) - Category 3
- Skin corrosion/irritation - Category 1A-1C
- Corrosives, Reactive agents - 1st degree
- Skin Corr. 1A
- H-statements
- H314 Causes severe skin burns and eye damage
- H290 (47.5%): May be corrosive to metals
- H314 (> 99.9%): Causes severe skin burns and eye damage
- H315 (36.5%): Causes skin irritation
- H318 (44.1%): Causes serious eye damage
- H319 (36.6%): Causes serious eye irritation
- H290 (100%): May be corrosive to metals
- H314 (100%): Causes severe skin burns and eye damage
- H318 (100%): Causes serious eye damage
- H318 Causes serious eye damage
- H370 Causes damage to organs
- H335 May cause respiratory irritation
Physical properties
- appearance
- Sodium hydroxide solution appears as a colorless liquid. More dense than water. Contact may severely irritate skin, eyes, and mucous membranes. Toxic by ingestion. Corrosive to metals and tissue.
- odour
- ... Odorless ...
- boiling point
- greater than 266 °F at 760 mmHg (USCG, 1999)
- melting point
- 604 °F (USCG, 1999)
- water solubility
- 111 % (NIOSH, 2024)
- density
- 1.5 at 68 °F (USCG, 1999) - Denser than water; will sink
- vapour pressure
- 0 mmHg (approx) (NIOSH, 2024)
- autoignition temperature
- Not flammable (USCG, 1999)
Transport
- un number
- —
- un psn
- —
- hazard class
- —
- packing group
- —
Exposure limits
- osha pel
- Vacated 1989 OSHA PEL Ceiling limit 2 mg/cu m is still enforced in some states.
- niosh rel
- Recommended Exposure Limit: 15 Minute Ceiling Value: 2 mg/cu m.
- note
- Auto-sourced from PubChem. NZ WES must be confirmed against MBIE Workplace Exposure Standards table before use.
First aid
- inhalation
- · Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed.
- skin
- SKIN: flush with water, then rinse with dilute vinegar (acetic acid).
- eye
- EYES: flush with water at once for at least 15 min.
- ingestion
- INGESTION: give water and milk. Do NOT induce vomiting. Call physician at once, even when injury seems to be slight. (USCG, 1999)