Potassium Hydroxide CAS#1310-58-3
Strong Alkalinity & High Reactivity：Forms powerful alkaline solutions capable of neutralizing and deprotonating even weak acids.
Versatile Industrial Applications：Widely used in soap making, cleaning agents, wood treatment, dyes, and colorant production.
Key Chemical Intermediate：Essential for producing various potassium salts, performing acid–base titrations, and supporting organic synthesis.
Efficient Gas Absorbent：Effectively absorbs carbon dioxide, making it valuable in gas purification and laboratory processes.
roduct Description – Potassium Hydroxide CAS#1310-58-3
Potassium hydroxide (KOH), also known as caustic potash, is a strong inorganic base that readily dissolves in water and other polar solvents to form highly alkaline solutions. These solutions can neutralize and deprotonate a wide range of acids, including weak acids.
KOH is widely used in the production of soft soaps, cleaning and scrubbing agents, wood treatment, dyes, and colorants, as well as for carbon dioxide absorption. It is also an important reagent in the preparation of potassium salts, acid–base titrations, and various organic synthesis processes.
Potassium hydroxide Chemical Properties
| Melting point | 361 °C (lit.) |
| Boiling poin | 1320°C |
| t | |
| density | 1.450 g/mL at 20 °C |
| vapor pressure | 1 mm Hg ( 719 °C) |
| refractive index | n20/D 1.421 |
| Fp | 52 °F |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | powder |
| Specific Gravity | 1.09 |
| color | white |
| Odor | Odorless |
| PH | 10.98(1 mM solution);11.95(10 mM solution);12.88(100 mM solution); |
| explosive limit | 3.5-15.0%(V) (ethanol) |
| Water Solubility | soluble |
| Sensitive | Air Sensitive & Hygroscopic |
| Merck | 147,640 |
| Exposure limits | Ceiling in air 2 mg/m3 (ACGIH). |
| Dielectric constant | 3.3（Ambient） |
| Stability: | Stable, but very hygroscopic. Dissolves exothermically in water. Incompatible with most metals, strong acids, acid chlorides, organic materials, zinc, aluminium, nitroalkanes, nitrobenzene, chlorine dioxide. Reacts vigorously with a wide variety of other materials. Readily absorbs water and carbon dioxide from the air. |
| Cosmetics Ingredients Functions | BUFFERING |
| InChIKey | KWYUFKZDYYNOTN-UHFFFAOYSA-M |
| LogP | -1.380 (est) |
| CAS DataBase Reference | 1310-58-3(CAS DataBase Reference) |
| NIST Chemistry Reference | Potassium hydroxide(1310-58-3) |
| EPA Substance Registry System | Potassium hydroxide (1310-58-3) |
Safety Information
| Hazard Codes | C,F,T,Xi |
| Risk Statements | 34-35-22-11-39/23/24/25-23/24/25-36/38-36/37-67-52/53 |
| Safety Statements | 7-16-36/37-45-36/37/39-26-61 |
| OEL | Ceiling: 2 mg/m3 |
| RIDADR | UN 2924 3/PG 2 |
| WGK Germany | 1 |
| RTECS | TT2100000 |
| F | 3 |
| Autoignition Temperature | 425 °C (ethanol) |
| TSCA | Yes |
| HazardClass | 8 |
| PackingGroup | II |
| HS Code | 28259090 |
| Hazardous Substances Data | 1310-58-3(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 1.23 g/kg (Smyth) |
Product Application – Potassium Hydroxide CAS#1310-58-3
Potassium hydroxide is widely used as an emulsifier in lotions and as an alkaline agent in liquid soaps, protective creams, and shaving products. It is also an important raw material for producing potassium salts and is applied in electroplating, lithography, printing inks, and wood treatment.
In addition, KOH plays a key role in organic synthesis and chemical analysis. Due to its strong alkalinity, high concentrations may cause skin irritation or burning and should be handled with proper precautions.
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