Safety data sheet for Sodium hypochlorite
CAS 7681-52-9
This is the free preview of a draft SDS for Sodium hypochlorite — Sections 1, 2 and 9, generated from the sources named below. The full 16-section draft, with your own company in Section 1, is $5 per document.
Typically documented by: Household bleach, pool sanitiser.
Draft safety data sheet — preview
Sections 1, 2, 9 of 16
- CAS number
- 7681-52-9
- Molecular formula
- NaOCl
- Molecular weight
- 74.44 g/mol
- Signal word
- Danger
Hazard classification
- GHS05 — Corrosive
- GHS06 — Acute toxicity
- GHS07 — Health hazard — irritant
- GHS09 — Hazardous to the environment
- H290: May be corrosive to metals.
- H302: Harmful if swallowed.
- H314: Causes severe skin burns and eye damage.
- H335: May cause respiratory irritation.
- H400: Very toxic to aquatic life.
- H410: Very toxic to aquatic life with long lasting effects.
Section 1 — Identification
1.1 Product identifier
Product identifier: Sodium Hypochlorite
Chemical name (IUPAC): sodium hypochlorite
CAS number: 7681-52-9
PubChem CID reference: 23665760
Synonyms: SODIUM HYPOCHLORITE; Antiformin; Clorox; Sodium oxychloride; Hypochlorous acid, sodium salt; Household bleach; Chlorox; Javex; Javelle water; Hypochlorite sodium
1.2 Relevant identified uses of the substance or mixture and uses advised against
Relevant identified uses: Laboratory reagent, industrial processing aid, formulation component, and internal product-stewardship review subject to supplier confirmation.
Uses advised against: Consumer, medical, food, or any other use not covered by the supplier's label, technical instructions, or exposure scenario.
Section 2 — Hazards Identification
2.1 Classification of the substance or mixture
Classification basis: OSHA 29 CFR 1910.1200 Appendix A, aligned to the GHS Rev. 7 hazard classes.
Classification: Corrosive to Metals, Category 1 (Met. Corr. 1) [H290]
Classification: Acute Toxicity, Category 4 — Oral (Acute Tox. 4 (Oral)) [H302]
Classification: Skin Corrosion, Category 1A (Skin Corr. 1A) [H314]
Classification: Specific Target Organ Toxicity, Single Exposure, Category 3 (STOT SE 3) [H335]
2.2 Label elements
Signal word: Danger
GHS pictograms: GHS05 (Corrosion), GHS06 (Toxic), GHS07 (Exclamation), GHS09 (Environmental Hazard)
Hazard statement: H290: May be corrosive to metals.
Hazard statement: H302: Harmful if swallowed.
Hazard statement: H314: Causes severe skin burns and eye damage.
Hazard statement: H335: May cause respiratory irritation.
Hazard statement: H400: Very toxic to aquatic life.
Hazard statement: H410: Very toxic to aquatic life with long lasting effects.
Precautionary statement: P234: Keep only in original packaging.
Precautionary statement: P390: Absorb spillage to prevent material damage.
Precautionary statement: P260: Do not breathe dust/fume/gas/mist/vapors/spray.
Precautionary statement: P264+P265: Wash hands thoroughly after handling. Do not touch eyes.
Precautionary statement: P280: Wear protective gloves, protective clothing, eye protection, face protection, and hearing protection.
Precautionary statement: P305+P354+P338: IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
Precautionary statement: P301+P330+P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
Precautionary statement: P302+P361+P354: IF ON SKIN: Take off Immediately all contaminated clothing. Immediately rinse with water for several minutes.
Section 9 — Physical and Chemical Properties
9.1 Information on basic physical and chemical properties
Physical form: Liquid
Appearance: Greenish yellow liquid
Odor: Disagreeable, sweetish odor
Boiling point: 111°C (232°F)
Melting point: 18°C (64°F)
Flash point: Not available
Density: 1.25 g/cm³ at 20°C
Vapor pressure: Not available
Water solubility: Solubility in water, g/l at 20 °C: 293 (good)
Log Pow (log Kow): Not available
Vapor density: Not available
Lower explosive limit: Not available
Upper explosive limit: Not available
Auto-ignition temperature: Not available
Viscosity: Not available
pH: Not available
9.2 Other information
Other information: Additional classification-supporting physical hazard data should be confirmed from the customer-specific product specification where required.
Sources
- ECHA C&L Inventory — harmonised CLP entry
- PubChem — GHS classification
- PubChem — compound record
- PubChem — names and identifiers
- PubChem — regulatory information
- PubChem — toxicity data
- PubChem — transport information
Sections 1.3 and 1.4 are withheld here because the supplier and emergency contact blocks carry your own company details in the draft you buy. Every draft needs review by a competent person before it is issued.
Measured values for Sodium hypochlorite, and where each one comes from
10 measured values for 6 properties, read from 2 public databases. On 1 property the records differ. Each reading is shown with its own record. Follow any record to read the value at its source.
Boiling point
1 record
Used with vapour pressure to judge how readily the substance reaches the air you breathe.
- Boiling point: 111 °C in solution
- Hazardous Substances Data Bank (HSDB)
Melting point
2 records agree
Fixes the physical state at handling temperature, which the label and the transport class depend on.
- MP: 18 °C /Pentahydrate/
- Hazardous Substances Data Bank (HSDB)
Density
3 records differ
Needed to convert between mass and volume on the label, in transport papers and in a spill estimate.
- 1.21 (14% aqueous solution, 20 °C)
- Hazardous Substances Data Bank (HSDB)
- Saturated liquid density= 66.169 lb/cu ft @ 70 °F
- Hazardous Substances Data Bank (HSDB)
- Density should not exceed 1.025 /Sodium hypochlorite soln, diluted/
- Hazardous Substances Data Bank (HSDB)
Solubility
1 record
Determines spill behaviour, the right extinguishing media and the correct first-aid rinse.
- 29.3 g/100 g (0 °C) in water
- Hazardous Substances Data Bank (HSDB)
Odour
2 records, each a different case
Odour is a warning property only. Many substances are hazardous well below the concentration you can smell.
- Disagreeable, sweetish odor
- Hazardous Substances Data Bank (HSDB)
- Faint chlorine-like odor /sodium hypochlorite soln diluted/
- Hazardous Substances Data Bank (HSDB)
Decomposition temperature
1 record
The temperature at which the substance breaks down, often into products more hazardous than itself.
- When heated to decomposition it emits toxic fumes of Na2O and /hydrogen chloride/
- Hazardous Substances Data Bank (HSDB)
These are the public records read for Sodium hypochlorite, published here unchanged. Where two records disagree, the draft you buy states the value and names the record behind it, so a reviewer can see what was chosen. Every draft needs review by a competent person before it is issued.
Get the full draft SDS for Sodium hypochlorite
The draft covers all 16 sections under OSHA 29 CFR 1910.1200 and GHS Rev. 7, or the CLP EC 1272/2008 layout for the EU. Each draft arrives as an editable .docx and a PDF with an appendix naming the source of each value, in about 60 seconds. $5 per document, no account.