Industrial chemicals · Taylor, TXTechnical Data Sheet
Technical Data Sheet
Sodium Hydroxide 10% ACS Grade
ACS · 10%
- CAS number
- 1310-73-2
- UN number
- UN1824
- Hazard class · packing group
- 8 · PG II
- Structure
Structure · PubChem - Grade
- ACS · 10%
- Signal word
- Danger
- Hazards
- Proper shipping name
- Sodium hydroxide solution
Last reviewed 2026-06-18 by Andre Taki, Chief Commercial Officer.
Identity & Composition
- Product Name
- Sodium Hydroxide 10% ACS Grade
- Alliance Code
- sodium-hydroxide-10-acs-grade
- Grade
- ACS
- Concentration
- 10%
- CAS Number
- 1310-73-2PubChem
- Formula
- —PubChem
- Molecular Weight
- —PubChem
- Product Type
- Solution
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (NaOH) | 9.5 - 10.5 % | 9.93 % | — | Interpreted |
| Ammonium hydroxide precipitate | 0.002% max | 0.00024 % | — | Interpreted |
| Calcium (Ca) | 0.00051% max | 0.000009 % | — | Interpreted |
| Chloride (Cl) | 0.00043% max | 0.00011 % | — | Interpreted |
| Heavy metals (as Ag) | 0.0002% max | 0.0000054 % | — | Interpreted |
| Iron (Fe) | 1 ppm max | 0.045 ppm | — | Interpreted |
| Magnesium (Mg) | 0.00021% max | 0.0000027 % | — | Interpreted |
| Mercury (Hg) | 0.01 ppm max | 0.00023 ppm | — | Interpreted |
| Nickel (Ni) | 1 ppm max | 0.027 ppm | — | Interpreted |
| Nitrogen compounds (as N) | 1 ppm max | 0.032 ppm | — | Interpreted |
| Phosphate (PO4) | 1.8 ppm max | 0.018 ppm | — | Interpreted |
| Potassium (K) | 0.002% max | 0.00046 % | — | Interpreted |
| Sodium carbonate | 0.05 % max | 0.025 % | — | Interpreted |
| Sulfate (SO4) | 0.00028% max | 0.000042 % | — | Interpreted |
| Color (APHA) | Max 20 | 1 | — | Interpreted |
| Composition | 10 % sodium hydroxide in deionized water, by weight | Conforms | By formulation; confirmed by specific gravity | 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 ACS | 10% | — | current | current |
| ACS Grade | 50% | — | sodium-hydroxide-50-solution-acs-grade | View TDS → |
| Membrane Grade | 50% | — | sodium-hydroxide-50-membrane-grade-caustic-soda-lye | View TDS → |
| ACS | 30% | — | sodium-hydroxide-30-acs-grade | View TDS → |
| Technical | 30% | — | sodium-hydroxide-30-technical-grade | View TDS → |
| — | 25% | — | sodium-hydroxide-25 | View TDS → |
| ACS Grade | 25% | — | sodium-hydroxide-25-acs-grade | View TDS → |
| ACS | 20% | — | sodium-hydroxide-20-acs-grade | View TDS → |
| Technical | 20% | — | sodium-hydroxide-20-technical-grade | View TDS → |
| ACS | 15% | — | sodium-hydroxide-15-acs-grade | View TDS → |
| Technical | 15% | — | sodium-hydroxide-15-technical-grade | View TDS → |
| Technical | 10% | — | sodium-hydroxide-10-technical-grade | View TDS → |
| ACS | 5% | — | sodium-hydroxide-5-acs-grade | 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 | Clear, colorless liquid | Adjudicated |
| Odor | Odorless | Adjudicated |
| pH | 14 | Adjudicated |
| Specific Gravity | 1.104–1.114 at 20 °C (water = 1) | Adjudicated |
| Boiling Point | 100-118 °C (212-244 °F) (aqueous solution) | Adjudicated |
| Melting Point | 0 °C (32 °F) (aqueous solution) | Adjudicated |
| Flash Point | Not applicable | Adjudicated |
| Vapor Pressure | About 14–24 mmHg at 20–25 °C (water vapor) | Adjudicated |
| Solubility (water) | Completely miscible with water (dilution releases heat) | Adjudicated |
Strong base — hygroscopic; values may drift in opened containers. See storage guidance.
Materials of ConstructionService envelope ≈ 10%
| Material | Rating | Max T (°C) | Notes | Source |
|---|---|---|---|---|
Buna-N (NBR) elastomer | Fair | 40 | Limited service life | Cole-Parmer Chemical Compatibility |
EPDM elastomer | Excellent | 100 | Standard for caustic gaskets. | Parker O-ring Chemical Compatibility |
Viton (FKM) elastomer | Poor | — | Hydrolyzes in caustic; do not use. | Parker O-ring Chemical Compatibility |
PTFE fluoropolymer | Excellent | 200 | Universal compatibility. | Cole-Parmer Chemical Compatibility |
Borosilicate Glass glass ceramic | Fair | 25 | Attacked above 30 % or elevated temp; avoid long-term service. | Cole-Parmer Chemical Compatibility |
304 stainless steel metal | Good | 80 | Acceptable for dilute caustic | Cole-Parmer Chemical Compatibility |
316L Stainless Steel metal | Excellent | 80 | Preferred metal for caustic service. | NACE TM0177 |
Aluminium metal | Not recommended | — | Rapid attack; generates hydrogen | Cole-Parmer Chemical Compatibility |
Carbon Steel metal | Good | 60 | Acceptable below 70 °C; caustic embrittlement risk above. | NACE Caustic Service Limits |
Nickel metal | Excellent | 100 | Preferred for high-temperature caustic | Cole-Parmer Chemical Compatibility |
Zinc / galvanized steel metal | Not recommended | — | Rapid corrosion | Cole-Parmer Chemical Compatibility |
HDPE thermoplastic | Excellent | 60 | Standard tote/drum material. | Cole-Parmer Chemical Compatibility |
Polypropylene thermoplastic | Excellent | 80 | Excellent caustic service to 50 %. | Cole-Parmer Chemical Compatibility |
PP thermoplastic | Excellent | 80 | Preferred for elevated temperature | Cole-Parmer Chemical Compatibility |
PVC thermoplastic | Good | 40 | Acceptable for ambient service | Cole-Parmer Chemical Compatibility |
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
Showing 15 of 15 material ratings within the selected envelope.
| Material | Rating | Max T (°C) | Notes |
|---|---|---|---|
Buna-N (NBR) elastomer | Fair | 40 | Limited service life |
EPDM elastomer | Excellent | 100 | Standard for caustic gaskets. |
Viton (FKM) elastomer | Poor | — | Hydrolyzes in caustic; do not use. |
PTFE fluoropolymer | Excellent | 200 | Universal compatibility. |
Borosilicate Glass glass ceramic | Fair | 25 | Attacked above 30 % or elevated temp; avoid long-term service. |
304 stainless steel metal | Good | 80 | Acceptable for dilute caustic |
316L Stainless Steel metal | Excellent | 80 | Preferred metal for caustic service. |
Aluminium metal | Not recommended | — | Rapid attack; generates hydrogen |
Carbon Steel metal | Good | 60 | Acceptable below 70 °C; caustic embrittlement risk above. |
Nickel metal | Excellent | 100 | Preferred for high-temperature caustic |
Zinc / galvanized steel metal | Not recommended | — | Rapid corrosion |
HDPE thermoplastic | Excellent | 60 | Standard tote/drum material. |
Polypropylene thermoplastic | Excellent | 80 | Excellent caustic service to 50 %. |
PP thermoplastic | Excellent | 80 | Preferred for elevated temperature |
PVC thermoplastic | Good | 40 | Acceptable for ambient service |
Regulatory & Transport
DOT / 49 CFR
- UN Number
- UN1824Adjudicated
- Hazard Class
- 8Adjudicated
- Packing Group
- IIAdjudicated
- Proper Shipping Name
- Sodium hydroxide solutionAdjudicated
GHS / OSHA HCS 2024
- Signal Word
- DangerAdjudicated
- H-Codes (Hazard Statements)
- H290, H314Adjudicated
- P-Codes (Precautionary Statements)
- P234, P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P390, P405, P406, P501Adjudicated
Occupational Exposure Limits
- OSHA PEL (29 CFR 1910.1000)
- 2 mg/m³ TWAOSHA 29 CFR 1910.1000
- ACGIH TLV
- 2 mg/m³ CeilingAdjudicated
- NIOSH REL
- 2 mg/m³ ceilingNIOSH Pocket Guide
- NIOSH IDLH
- 10 mg/m³NIOSH Pocket Guide
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 Dermal (rabbit)
- 1,350 mg/kg (sodium hydroxide)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 Hydroxide 10% ACS Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Catalog EquivalentsCross-reference vs major chemical suppliers
Sigma-Aldrich
| SKU | Grade | Conc. | Match | Notes |
|---|---|---|---|---|
| S5881 | ACS Reagent | ≥97% | Unverified candidate | Reagent grade, anhydrous pellets |
Cross-references are informational. Confirm against the manufacturer's current specification before substitution. Competitor trademarks are property of their respective owners.
Applications
- pH adjustment in water treatment; pulp and paper; textile scouring and dyeing; soap and detergent manufacturing; petroleum refining and oil drilling; aluminum processing; chemical synthesisbasekim.com
Applications are drawn from published manufacturer and supplier documentation; each is sourced. Suitability for a specific use is the buyer's to confirm.
Storage & Handling
- Recommended Storage
- Store closed in steel, polyethylene or polypropylene, never aluminum or galvanized. Protect from freezing. Keep away from acids.Adjudicated
- Handling Precautions
- Use full PPE including chemical splash goggles and alkali-resistant gloves. Add base to water slowly with stirring. Highly exothermic dilution.Class-level guidance — not product-specific; the SDS controls.
- Incompatibilities
- Acids (violent reaction); aluminum, zinc, tin, magnesium and their alloys, including galvanized metal (release flammable hydrogen); organic halogen compounds; nitro compounds; sugars (can release carbon monoxide in closed vessels).Adjudicated
- Shelf Life
- Consult Technical Services for product-specific shelf life
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)
UN1824, Sodium hydroxide solution, 8, PG II
Sourced from 49 CFR 172.101. Confirm against shipping documents and carrier requirements before tender.
NMFC Class
60
Placard
Corrosive
Packing Group
PG II
Revision History
Last reviewed 2026-06-18 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.6 | 2026-10-08 | Canonical data updated: 16 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.5 | 2026-10-07 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.4 | 2026-09-30 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.3 | 2026-08-05 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.2 | 2026-07-22 | Canonical data updated: 2 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.1 | 2026-06-18 | Canonical data re-verified: 3 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.