Industrial chemicals · Taylor, TXTechnical Data Sheet
Sodium Hydroxide Flakes ACS Grade
ACS Grade · 97%
- CAS番号
- 1310-73-2
- UN番号
- UN1823
- 危険有害性クラス・容器等級
- 8 · PG II
- 構造
構造・PubChem - グレード
- ACS Grade · 97%
- 注意喚起語
- Danger
- 危険有害性
- 正式輸送品名
- Sodium hydroxide, solid
Identity & Composition
- 製品名
- Sodium Hydroxide Flakes ACS Grade
- Alliance Code
- sodium-hydroxide-flakes-acs-grade
- グレード
- ACS Grade
- 濃度
- 97%
- CAS番号
- 1310-73-2PubChem
- 化学式
- —PubChem
- 分子量
- 39.997PubChem
- 製品種別
- Pure substance
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (NaOH) | >=97.0 % | 99.1 % | Titration with HCl | Interpreted |
| Ammonium hydroxide precipitate | 0.002 % | 0.00050 % | — | Interpreted |
| Arsenic (As) | < 3.0 ppm | 0.053 ppm | — | Interpreted |
| Calcium (Ca) | Max 0.005% | 0.00007% | — | Interpreted |
| Chloride (Cl) | Max 0.005% | 0.0012% | — | Interpreted |
| Heavy metals (as Ag) | Max 0.002% | 0.000057% | — | Interpreted |
| Iron (Fe) | Max 0.001% | 0.00006% | — | Interpreted |
| Lead (Pb) | < 2.0 ppm | 0.021 ppm | — | Interpreted |
| Magnesium (Mg) | Max 0.002% | 0.000043% | — | Interpreted |
| Mercury (Hg) | Max 0.1 ppm | 0.0028 ppm | — | Interpreted |
| Nickel (Ni) | Max 0.001% | 0.00007% | — | Interpreted |
| Nitrogen compounds (as N) | Max 0.001% | 0.000058% | — | Interpreted |
| Phosphate (PO4) | Max 0.001% | 0.000019% | — | Interpreted |
| Potassium (K) | Max 0.02% | 0.0025% | — | Interpreted |
| Sodium carbonate (Na2CO3) | Max 1.0% | 0.08% | — | Interpreted |
| Sulfate (SO4) | Max 0.003% | 0.00054% | — | 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
| グレード | 濃度 | Typical Assay | SKU | TDS |
|---|---|---|---|---|
| This grade ACS Grade | 97% | — | current | current |
| Technical | 97% | — | sodium-hydroxide-flakes | 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.
物理的及び化学的性質
| Property | 値 | Source |
|---|---|---|
| 外観 | White hygroscopic flakes | Adjudicated |
| 形状 | Solid | Published reference |
| 臭い | Odorless | Adjudicated |
| pH | About 14 (5% solution) | Adjudicated |
| 比重 | 2.13 at 20 °C (water = 1) | Adjudicated |
| 密度 | 1.5 at 68 °F (USCG, 1999) - Denser than water; will sink | Published reference |
| 沸点 | 1,388–1,390 °C (2,530–2,534 °F) | Adjudicated |
| 融点 | 318–323 °C (604–613 °F) | Adjudicated |
| 引火点 | 該当しない | Adjudicated |
| 蒸気圧 | Negligible at 20 °C (< 0.1 hPa) | Adjudicated |
| Solubility (water) | Very soluble in water, about 1,090–1,260 g/L at 20 °C (strongly exothermic); soluble in ethanol, methanol and glycerol | Adjudicated |
Strong base — hygroscopic; values may drift in opened containers. See storage guidance.
Materials of Construction
| Material | Rating | Conditions | Source |
|---|---|---|---|
| Plastic (poly) pail with polyethylene bag liner; fiber drum with poly bag liner | Compatible | Solid sodium hydroxide (pellet form) as packaged by the supplier; no temperature stated | chemtradelogistics.com |
| corrosion-resistant and/or lined container | Compatible | Dry, cool, well-ventilated place; container kept closed; original, corrosion-resistant, or lined container. | chemtradelogistics.com |
Compatibility is drawn from published manufacturer and supplier documentation for this product; each rating is sourced. Confirm against your specific duty cycle before equipment selection.
Regulatory & Transport
DOT / 49 CFR
- 国連番号
- UN1823Adjudicated
- 危険有害性クラス
- 8Adjudicated
- 容器等級
- IIAdjudicated
- 正式輸送品名
- Sodium hydroxide, solidAdjudicated
GHS / OSHA HCS 2024
- 注意喚起語
- 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
許容濃度
- 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 CeilingAdjudicated
- NIOSH IDLH
- 10 mg/m³Adjudicated
輸送情報は発行時点の49 CFR 172.101の照会結果を反映しています。データ出典：REL/IDLHはNIOSH Pocket Guide、PELはOSHA Zテーブル。出荷に関わる重要な判断の前に、必ず最新の規制本文で確認してください。
Health & Fire Hazard
Acute Toxicology
- LD₅₀ Dermal (rabbit)
- 1,350 mg/kgAdjudicated
急性毒性値はSDS第11項またはNIOSH RTECSによる。
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 Flakes 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 | グレード | 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
- Organic synthesis, petroleum product refining, textile industry (viscose silk, fabric bleaching), paper and aniline industry, soap making, production of aluminum and sodium metal, soluble glass and alkaline accumulatorsbci.sa
- Neutralizer and alkalinity control in analytical chemistry; absorption of NOx, SO3 and CO2 in gas streams; manufacture of high-purity sodium compounds; etchant in semiconductor wet processing; photoengraving and lithography; hydrolyzing fats for soapschemtradelogistics.com
- Absorption of NOx, SO3, and CO2 in gas streamschemtradelogistics.com
- Manufacture of high-purity sodium compoundschemtradelogistics.com
- Semiconductor wet-processing etchantchemtradelogistics.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
- 乾燥した場所に密閉して保管すること — フレークは空気中の水分および二酸化炭素を吸収する。鋼、ポリエチレンまたはポリプロピレン製の容器を使用し、アルミニウムや亜鉛メッキ金属は絶対に使用しないこと。酸類から遠ざけること。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
- 大量の水（激しい発熱）；酸（激しい反応）；アルミニウム、亜鉛、スズ、銅およびそれらの合金（亜鉛メッキ金属を含む）（可燃性水素を発生）；ハロゲンおよび有機ハロゲン化合物；ニトロ化合物；強酸化剤。Adjudicated
- Shelf Life
- 36 monthschemtradelogistics.comStated by the source for solid sodium hydroxide (Chemtrade pellets, not flakes), stored dry, cool and well-ventilated; some caking may develop within 1 year.
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)
UN1823, Sodium hydroxide, solid, 8, PG II
Sourced from 49 CFR 172.101. Confirm against shipping documents and carrier requirements before tender.
Revision History
Last reviewed 2026-06-18 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.4 | 2026-10-07 | Canonical data updated: 24 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.3 | 2026-09-30 | 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.