Industrial chemicals · Taylor, TXTechnical Data Sheet
Potassium Hydroxide 25% Solution Technical Grade
Technical · 25%
- CAS番号
- 1310-58-3
- UN番号
- UN1814
- 危険有害性クラス・容器等級
- 8 · PG II
- 構造
構造・PubChem - グレード
- Technical · 25%
- 注意喚起語
- Danger
- 危険有害性
- 正式輸送品名
- Potassium hydroxide solution
Identity & Composition
- 製品名
- Potassium Hydroxide 25% Solution Technical Grade
- Alliance Code
- potassium-hydroxide-25-solution-technical-grade-caustic-potash-liquid-koh
- グレード
- Technical
- 濃度
- 25% w/w
- CAS番号
- 1310-58-3Adjudicated
- 化学式
- HKOAdjudicated
- 分子量
- 56.106Adjudicated
- 製品種別
- Solution
Specifications
| Test | Specification | Typical | Method | Source |
|---|---|---|---|---|
| Assay (KOH) | ≥23.75 to ≤26.25 % w/w | 24.92 % | — | Interpreted |
| Chloride (as Cl) | 42 ppm Max. | 5.0 ppm | — | Interpreted |
| Iron (as Fe) | 2.5 ppm Max. | 0.16 ppm | — | Interpreted |
| Mercury (as Hg) | 0.06 ppm Max. | 0.0059 ppm | — | Interpreted |
| Potassium carbonate (as K2CO3) | 0.11 % Max. | 0.033 % | — | Interpreted |
| Sodium (as Na) | 1400 ppm Max. | 544 ppm | Flame AAS / ICP-OES | Interpreted |
| Sulfate (as K2SO4) | 6 ppm Max. | 1.9 ppm | Turbidimetric (BaCl2) | Interpreted |
| Heavy metals (as Pb) | 2.5 ppm Max. | 0.45 ppm | Colorimetric sulfide comparison | 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 Technical | 25% | — | current | current |
| ACS Reagent | 45% | — | potassium-hydroxide-45-solution-acs-grade | View TDS → |
| Technical | 45% | — | potassium-hydroxide-45-solution-technical-grade-caustic-potash-liquid-koh | View TDS → |
| Technical | 30% | — | potassium-hydroxide-30-solution-technical-grade | View TDS → |
各グレードの代表的な含量は、直近ロットの平均値です。代替品として使用する前に、そのグレードがお客様の仕様を満たしていることをご確認ください。
物理的及び化学的性質
| Property | 値 | Source |
|---|---|---|
| 外観 | Clear, colorless liquid | Adjudicated |
| 臭い | Odorless | Adjudicated |
| pH | 14 | Adjudicated |
| 比重 | 1.24 at 20 °C (water = 1) | Adjudicated |
| 密度 | 1.24 g/ml at 20ºC | Interpreted |
| 引火点 | 該当しない | Adjudicated |
| 蒸気圧 | About 17 mmHg (23 hPa) at 20 °C | 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 Construction
| Material | Rating | Conditions | Source |
|---|---|---|---|
| metal containers | Not recommended | 25% KOH solution | rcilabscan.com |
| nitrile rubber (glove material) | Compatible | 25% KOH solution; full contact and splash contact glove material | rcilabscan.com |
| corrosion-resistant container with a resistant inner liner | Compatible | 25% potassium hydroxide solution; storage | rcilabscan.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
- UN1814Adjudicated
- 危険有害性クラス
- 8Adjudicated
- 容器等級
- IIAdjudicated
- 正式輸送品名
- Potassium hydroxide solutionAdjudicated
GHS / OSHA HCS 2024
- 注意喚起語
- DangerAdjudicated
- H-Codes (Hazard Statements)
- H290, H302, H314Adjudicated
- P-Codes (Precautionary Statements)
- P234, P260, P264, P270, P280, P301+P312+P330, 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)
- —no canonical
- ACGIH TLV
- 2 mg/m³ CeilingAdjudicated
- NIOSH REL
- 2 mg/m³ CeilingAdjudicated
- NIOSH IDLH
- —no canonical
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 Oral (rat)
- 214–333 mg/kg (potassium hydroxide, rat); estimated ATE of the 25% solution about 820–1,330 mg/kg (Acute Tox. 4, H302)Adjudicated
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 Potassium Hydroxide 25% Solution Technical Grade. Every file included is SHA-256 hashed and listed in a manifest your QA team can audit.
Applications
- Industrial uses of potassium hydroxide: detergents/soaps, dyeing and bleaching, paint and varnish removers, electroplating, photo engraving, lithography, alkaline batteries, analytical chemistry, fuel and gas, thickening agent, organic synthesis, stabilizercorecheminc.com
- Used in a large number of manufacturing processesstore.astm.org
- Chemical for analysis and productionrcilabscan.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
- 鋼、ポリエチレン又はポリプロピレン製の容器に密閉して保管すること。アルミニウム又は亜鉛メッキの容器には絶対に保管しないこと。凍結させないこと。酸から遠ざけること。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
- 酸（激しい反応）；アルミニウム、亜鉛、スズ、銅、マグネシウム及びそれらの合金（亜鉛メッキ金属を含む）（可燃性水素を発生）；ニトロ化合物；有機物；ハロゲン化合物。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)
UN1814, Potassium hydroxide solution, 8, PG II
Sourced from 49 CFR 172.101. Confirm against shipping documents and carrier requirements before tender.
Revision History
| Version | Date | Change | Trigger |
|---|---|---|---|
| 1.5 | 2026-10-08 | Canonical data updated: 17 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.4 | 2026-10-07 | Canonical data updated: 3 fields changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.3 | 2026-09-30 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.2 | 2026-08-27 | Canonical data updated: 1 field changed via the provenance/adjudication pipeline.
| canonical_change |
| 1.1 | 2026-08-11 | Canonical data updated: 12 fields changed via the provenance/adjudication pipeline.
| canonical_change |
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.