Industrial chemicals · Taylor, TXTechnical Data Sheet
Sodium Hypochlorite 12.5%
Technical · 12.5%
- CAS number
- 7681-52-9
- UN number
- UN1791
- Hazard class · packing group
- 8 · PG III
- Structure
Structure · PubChem - Grade
- Technical · 12.5%
- Signal word
- Danger
- Hazards
- Proper shipping name
- Hypochlorite solutions
Identity & Composition
- Product Name
- Sodium Hypochlorite 12.5%
- Alliance Code
- sodium-hypochlorite-12-5
- Grade
- Technical
- Concentration
- 12.5%
- CAS Number
- 7681-52-9PubChem
- Formula
- NaOClAdjudicated
- Molecular Weight
- 74.44PubChem
- Product Type
- Solution
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Total Alkalinity | 0.1 - 1.5 wt% | 0.84 wt% | — | Interpreted |
| Bromate (12.5% Basis) | 39 ppm Max | 2.8 ppm | — | Interpreted |
| Chlorate (12.5% Basis) | 3,570 ppm Max | 930 ppm | — | Interpreted |
| Cobalt (Co) | 0.1 ppm Max | 0.009 ppm | — | Interpreted |
| Excess Sodium Carbonate (wt.%) | 0.25 max | 0.031 | — | Interpreted |
| Insolubles | 0.15 wt% Max | 0.012 wt% | — | Interpreted |
| Sodium Hydroxide (NaOH) | 0.1 - 1.2 wt% | 0.69 wt% | — | Interpreted |
| Sodium Hypochlorite (NaOCl) (wt. %) | 12.5 - 13.5 wt% | 12.61 wt% | — | Interpreted |
| Copper | < 0.5 ppm | 0.031 ppm | — | Interpreted |
| Available Chlorine (Cl2) | 11.9 - 12.9 wt% | 12.0 wt% | — | Interpreted |
| Iron | < 1.0 ppm | 0.19 ppm | — | Interpreted |
| Nickel | < 0.5 ppm | 0.047 ppm | — | Interpreted |
| Chlorate (ClO3) | 3000 Max mg/L | 1105 mg/L | Ion chromatography, EPA 300.1 | Interpreted |
Values are reproduced from the current product reference. Source labels do not by themselves establish a supplier guarantee or a test result for your lot. Confirm applicable acceptance limits and request lot-specific documentation.
Available GradesSame CAS, alternate grades and concentrations
| Grade | Concentration | Typical Assay | SKU | TDS |
|---|---|---|---|---|
| This grade Technical | 12.5% | — | current | current |
| Technical | 8.25% | — | sodium-hypochlorite-8-25 | View TDS → |
| Technical | 6% | — | sodium-hypochlorite-6 | View TDS → |
| Technical | 5.25% | — | sodium-hypochlorite-5-25 | View TDS → |
| Technical | 3% | — | sodium-hypochlorite-3 | View TDS → |
| Technical | 2% | — | sodium-hypochlorite-2 | View TDS → |
| Technical | 1% | — | sodium-hypochlorite-1 | View TDS → |
| Technical | — | — | sodium-hypochlorite-10 | View TDS → |
Typical assay shown is the rolling-window mean from the sibling product's most recent lots. Grade selection drives downstream end-use — verify the sibling grade matches your specification before substitution.
Physical & Chemical Properties
| Property | Value | Source |
|---|---|---|
| Appearance | Pale yellow liquid | Adjudicated |
| Form | Liquid solution | Published reference |
| Color | Clear/Greenish Yellow | Interpreted |
| Odor | Chlorine (bleach) odor | Adjudicated |
| pH | 12.5 - 13.5 | Interpreted |
| Specific Gravity | 1.18 – 1.24 | Interpreted |
| Density | 1.19 (12.5% w/w aqueous solution, 20 °C) | Published reference |
| Boiling Point | 110 °C (230 °F) (aqueous solution) | Adjudicated |
| Melting Point | -27 to -15 °C (-17 to 5 °F), freezing point (aqueous solution) | Adjudicated |
| Flash Point | Not applicable | Adjudicated |
| Vapor Pressure | 12–17.5 mmHg (1.6–2.3 kPa) at 20 °C | Adjudicated |
| Solubility (water) | 29.3 g/100 g (0 °C) in water | Published reference |
| Viscosity | 1.75–2.5 mPa·s (varies with temperature) | Adjudicated |
Oxidizer — decomposition rate and gas-evolution data may apply. Consult the SDS for material-of-construction guidance under shipping and storage conditions.
Materials of ConstructionService envelope ≈ 12.5%
MOC ratings are required for this chemical class but no compatibility data has been seeded yet. Treat as no-data and consult Alliance Technical Services before equipment selection.
Regulatory & Transport
DOT / 49 CFR
- UN Number
- UN1791Adjudicated
- Hazard Class
- 8Adjudicated
- Packing Group
- IIIAdjudicated
- Proper Shipping Name
- Hypochlorite solutionsAdjudicated
GHS / OSHA HCS 2024
- Signal Word
- DangerAdjudicated
- H-Codes (Hazard Statements)
- EUH031, H290, H314, H400, H411Adjudicated
- P-Codes (Precautionary Statements)
- P234, P260, P264, P273, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P313, P321, P363, P390, P391, P405, P406, P501Adjudicated
Occupational Exposure Limits
- OSHA PEL (29 CFR 1910.1000)
- 2 mg/m³ TWA (CAS 1310-73-2)Adjudicated
- ACGIH TLV
- 2 mg/m³ Ceiling (CAS 1310-73-2)Adjudicated
- NIOSH REL
- 2 mg/m³ Ceiling (CAS 1310-73-2)Adjudicated
- NIOSH IDLH
- 10 mg/m³ (CAS 1310-73-2)Adjudicated
Transport descriptions reflect 49 CFR 172.101 lookup at time of publication. Sourced data: NIOSH Pocket Guide for REL/IDLH, OSHA Z-Tables for PEL. Always verify against the latest regulatory text before shipment-critical decisions.
Health & Fire Hazard
Acute Toxicology
- LD₅₀ Oral (rat)
- 8200–8910 mg/kg (CAS 7681-52-9)Adjudicated
- LD₅₀ Dermal (rabbit)
- > 10000 mg/kg (CAS 7681-52-9)Adjudicated
Acute toxicology values from SDS Section 11 or NIOSH RTECS.
Supplier Qualification Packet
One zipped download containing the TDS, SDS, latest lot COA (when available), and a fresh Letter of Continuing Guaranty for Sodium Hypochlorite 12.5%. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Applications
Industrial bleaching, oxidizing and cleaning agent.Adjudicated
Restrictions on Use: Never mix with acids, ammonia or other cleaning products: this releases toxic chlorine or chloramine gas. Not represented by Alliance Chemical as a disinfectant, sanitizer or drinking-water treatment.
Storage & Handling
- Recommended Storage
- Store out of direct sunlight in a cool area, below 21 °C (70 °F), in the original vented container. Do not freeze. Keep away from acids, ammonia and organic materials. Strength declines with time and temperature.Adjudicated
- Handling Precautions
- Use PPE including face shield, chemical-resistant gloves, and apron. Avoid contamination — never return unused material to the original container. Ground all transfer equipment.Class-level guidance — not product-specific; the SDS controls.
- Incompatibilities
- Acids (release toxic chlorine gas); ammonia and ammonium compounds (form chloramines); reducing agents; hydrogen peroxide; organic and combustible materials; metals such as copper, nickel, cobalt, iron, aluminum and zinc.Adjudicated
- Shelf Life
- 3 months from date of manufacture in sealed, original packaging
For full hazard, PPE, and emergency response guidance, refer to the Safety Data Sheet (SDS) for this product. The SDS controls in all cases where guidance differs.
Packaging & Logistics
Shipping Description (US DOT)
UN1791, Hypochlorite solutions, 8, PG III
Sourced from 49 CFR 172.101. Confirm against shipping documents and carrier requirements before tender.
Revision History
Last reviewed 2026-07-17 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.9 | 2026-10-07 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.8 | 2026-10-05 | Canonical data updated: 22 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.7 | 2026-09-30 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.6 | 2026-09-10 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.5 | 2026-08-12 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.4 | 2026-08-05 | Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.3 | 2026-07-22 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.2 | 2026-07-17 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.1 | 2026-07-17 | Canonical data re-verified: 6 fields updated against independent vendor SDSs, CLP Annex VI, 49 CFR, and OSHA HazCom 2024 (GHS classification, hazard/precautionary codes, signal word, physical properties as applicable).
| canonical_change |
| 1.0 | 2026-05-20 | Initial URL-first TDS published from canonical chemistry registry. | initial |
This Technical Data Sheet is provided for technical reference. The Safety Data Sheet (SDS) controls in all cases where guidance differs. Values reflect Alliance Chemical canonical data at time of generation; subsequent revisions are recorded in the Revision History above.