Technical Data Sheet

Sodium Hypochlorite 1%

Technical · 1%

CAS Number: 7681-52-9
Alliance Code: sodium-hypochlorite-1
Generated: 2026-08-31
Revision: 1.5
Reviewed: 2026-07-17 · Andre Taki

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2D chemical structure of Sodium Hypochlorite 1% — Structure · PubChem

Last reviewed 2026-07-17 by Andre Taki, DOT Hazmat Specialist.

Identity & Composition

Product Name: Sodium Hypochlorite 1%
Alliance Code: sodium-hypochlorite-1
Grade: Technical
Concentration: 1%
CAS Number: 7681-52-9PubChem
Formula: ClNaOPubChem
Molecular Weight: 74.44PubChem
Product Type: solution

Specifications

Test	Specification	Typical	Method	Source
Assay (available chlorine)	0.9 – 1.1% (m/m)	1.0 %	DAC	Supplier specification
Copper	< 0.04 ppm	0.004 ppm	—	Derived by dilution
Heavy Metals	max. 20 ppm	1 ppm	Ph. Eur. (2.4.8), DAC	Supplier specification
Nickel	< 0.04 ppm	0.0064 ppm	—	Derived by dilution
Iron	max. 10 ppm	0.012 ppm	Ph. Eur. (2.4.9), DAC	Supplier specification
Available Chlorine (Cl2)	0.5 - 1.4 wt%	0.95 wt%	Iodometric titration (Na2S2O3 / starch)	Interpreted
Bromate (12.5% Basis)	3.1 ppm max	0.32 ppm	—	Derived by dilution
Chlorate (12.5% Basis)	286 ppm max	95 ppm	—	Derived by dilution
Cobalt (Co)	0.008 ppm max	0.0010 ppm	—	Derived by dilution
Insolubles	0.012 wt% max	0.0012 wt%	—	Derived by dilution
Chlorate (ClO3)	240 mg/l max	96 mg/l	Ion chromatography, EPA 300.1	Derived by dilution

Specification values are guaranteed limits. Typical values are representative of production lots and are not guaranteed. Lot-specific certificates of analysis ship with every order.

Available GradesSame CAS, alternate grades and concentrations

Grade	Concentration	Typical Assay	SKU	TDS
This grade Technical	1%	—	current	current
Technical	12.5%	—	sodium-hypochlorite-12-5	View TDS →
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	—	—	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
pH	10.0-12.0	Supplier specification
Specific Gravity (20 °C)	1.010 - 1.020	Interpreted

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 ≈ 1%

Material	Rating	Max T (°C)	Notes	Source
Buna-N (NBR) elastomer	Not recommended	—	Rapid degradation; never use with oxidizers.	Parker O-ring Chemical Compatibility
EPDM elastomer	Fair	60	Service below 35 %; swelling and embrittlement above.	Parker O-ring Chemical Compatibility
Viton (FKM) elastomer	Poor	—	Use EPDM or PTFE for sealing	Solvay H2O2 Safety & Handling
PTFE fluoropolymer	Excellent	200	Universal compatibility; preferred lining material.	Cole-Parmer Chemical Compatibility
PVDF (Kynar) fluoropolymer	Excellent	100	Standard for high-purity peroxide service.	Solvay H2O2 Materials of Construction
Borosilicate Glass glass ceramic	Excellent	100	Inert to all oxidizers within normal service temperatures.	Cole-Parmer Chemical Compatibility
Concrete (untreated) glass ceramic	Not recommended	—	Reactive; line with HDPE/FRP	Solvay H2O2 Safety & Handling
304 Stainless Steel metal	Fair	40	Surface oxidation at higher concentrations; passivate before service.	Cole-Parmer Chemical Compatibility
316L Stainless Steel metal	Good	60	Passive layer stable; avoid prolonged service above 60 °C.	Solvay H2O2 Materials of Construction
Aluminium 1100/3003 metal	Good	40	Limit to dilute service	Solvay H2O2 Safety & Handling
Brass metal	Not recommended	—	Copper-induced decomposition	Solvay H2O2 Safety & Handling
Carbon Steel metal	Not recommended	—	Rapid corrosion; never use with oxidizers.	Cole-Parmer Chemical Compatibility
Copper metal	Not recommended	—	Catalytic decomposition; severe	Solvay H2O2 Safety & Handling
CPVC thermoplastic	Good	60	Acceptable to 60 °C	Solvay H2O2 Safety & Handling
HDPE thermoplastic	Good	25	Good below 25 °C; reaction with peroxides accelerates at higher T.	Cole-Parmer Chemical Compatibility
Polypropylene thermoplastic	Good	25	Service below 35 % at ambient; avoid above 25 °C.	Cole-Parmer Chemical Compatibility
PVC thermoplastic	Fair	40	Embrittlement risk above 40 °C	Solvay H2O2 Safety & Handling

Ratings reflect the service envelope (concentration × temperature) shown. Always confirm against your specific duty cycle and contact-time before equipment selection. The most cautious rating across overlapping references is shown.

Materials Selection Tool

Concentration (% w/w): 1%

Temperature (°C): 20

Showing 17 of 17 materials compatible at the selected envelope.

Material	Rating	Max T (°C)	Notes
Buna-N (NBR) elastomer	Not recommended	—	Rapid degradation; never use with oxidizers.
EPDM elastomer	Fair	60	Service below 35 %; swelling and embrittlement above.
Viton (FKM) elastomer	Poor	—	Use EPDM or PTFE for sealing
PTFE fluoropolymer	Excellent	200	Universal compatibility; preferred lining material.
PVDF (Kynar) fluoropolymer	Excellent	100	Standard for high-purity peroxide service.
Borosilicate Glass glass ceramic	Excellent	100	Inert to all oxidizers within normal service temperatures.
Concrete (untreated) glass ceramic	Not recommended	—	Reactive; line with HDPE/FRP
304 Stainless Steel metal	Fair	40	Surface oxidation at higher concentrations; passivate before service.
316L Stainless Steel metal	Good	60	Passive layer stable; avoid prolonged service above 60 °C.
Aluminium 1100/3003 metal	Good	40	Limit to dilute service
Brass metal	Not recommended	—	Copper-induced decomposition
Carbon Steel metal	Not recommended	—	Rapid corrosion; never use with oxidizers.
Copper metal	Not recommended	—	Catalytic decomposition; severe
CPVC thermoplastic	Good	60	Acceptable to 60 °C
HDPE thermoplastic	Good	25	Good below 25 °C; reaction with peroxides accelerates at higher T.
Polypropylene thermoplastic	Good	25	Service below 35 % at ambient; avoid above 25 °C.
PVC thermoplastic	Fair	40	Embrittlement risk above 40 °C

Regulatory & Transport

DOT / 49 CFR

UN Number: UN1791Adjudicated
Hazard Class: 8Adjudicated
Packing Group: IIIAdjudicated
Proper Shipping Name: Hypochlorite solutionsAdjudicated

GHS / OSHA HazCom 2012

Signal Word: WarningAdjudicated
H-Codes (Hazard Statements): H315, H319Adjudicated
P-Codes (Precautionary Statements): P264, P280, P302+P352, P305+P351+P338, P321, P332+P313, P337+P313, P362, P501Adjudicated

Occupational Exposure Limits

OSHA PEL (29 CFR 1910.1000): —no canonical
ACGIH TLV: —no canonical
NIOSH REL: —no canonical
NIOSH IDLH: —no canonical

Transport descriptions reflect 49 CFR 172.101 lookup at time of publication. Sourced data: ECHA CLP Annex VI for harmonised classifications, NIOSH Pocket Guide for REL/IDLH, OSHA Z-Tables for PEL. Always verify against the latest regulatory text before shipment-critical decisions.

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 1%. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.

Download audit packet

Application Guidance

Sodium Hypochlorite 1% (Technical) is supplied for applications where controlled, selective oxidation is required. Grade selection drives the choice between bulk industrial oxidation, electronics/semiconductor cleaning, and pharmaceutical-grade disinfection.

Pulp and textile bleaching
Wastewater treatment and odor control
Etching and surface cleaning (electronics-grade only)
Disinfection and sterilization (food/pharma-grade only)
Chemical synthesis and polymerization initiation

Materials of construction must be rated for the concentration and temperature in service. Avoid contact with reducing agents, transition metals, and organic combustibles.

Storage & Handling

Recommended Storage: Cool, well-ventilated area, away from heat, sunlight, and combustibles. Vented containers only — pressure may develop from slow decomposition. Original sealed containers; segregate from organics, metals (especially copper, iron, manganese), and reducing agents.Class-level guidance — not product-specific; the SDS controls.
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: Combustible materials, organic compounds, reducing agents, transition metal salts (catalytic decomposition), strong bases.Class-level guidance — not product-specific; the SDS controls.
Shelf Life: 6 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.

NMFC Class

Placard

Corrosive

Packing Group

PG III

Revision History

Last reviewed 2026-07-17 by Andre Taki, DOT Hazmat Specialist.

Version	Date	Change	Trigger
1.5	2026-08-12	Canonical data updated: 1 field changed via the provenance/adjudication pipeline. unNumber· canonical change (coa.data_provenance / adjudication)	canonical_change
1.4	2026-08-05	Canonical data updated: 2 fields changed via the provenance/adjudication pipeline. hazardClass· canonical change (coa.data_provenance / adjudication) unNumber· canonical change (coa.data_provenance / adjudication)	canonical_change
1.3	2026-07-22	Canonical data updated: 5 fields changed via the provenance/adjudication pipeline. ghsClassification· canonical change (coa.data_provenance / adjudication) hazard_h_codes· canonical change (coa.data_provenance / adjudication) hazard_p_codes· canonical change (coa.data_provenance / adjudication) dotSubsidiaryHazardClass· canonical change (coa.data_provenance / adjudication) packingGroup· canonical change (coa.data_provenance / adjudication)	canonical_change
1.1	2026-07-17	Canonical data re-verified: 7 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). countryOfOrigin· canonical adjudication / reground (coa.data_provenance) ghsClassification· canonical adjudication / reground (coa.data_provenance) hazard_h_codes· canonical adjudication / reground (coa.data_provenance) hazard_p_codes· canonical adjudication / reground (coa.data_provenance) hsCode· canonical adjudication / reground (coa.data_provenance) packingGroup· canonical adjudication / reground (coa.data_provenance) signalWord· canonical adjudication / reground (coa.data_provenance)	canonical_change
1.2	2026-07-17	Canonical data updated: 1 field changed via the provenance/adjudication pipeline. dotProperShippingName· canonical change (coa.data_provenance / adjudication)	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.