A6715512
Potassium hydroxide , ACS , 1310-58-3
Synonym(s):
Potassium hydroxide;Caustic potash;Potassium hydroxide solution;Potassium hydroxide hydrate;caustic potash monohydrate
CAS NO.：1310-58-3
Empirical Formula: KOH
Molecular Weight: 56.11
MDL number: MFCD00003553
EINECS: 215-181-3
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 361 °C (lit.) |
| Boiling point: | 1320°C |
| Density | 1.450 g/mL at 20 °C |
| vapor pressure | 1 mm Hg ( 719 °C) |
| refractive index | n |
| Flash point: | 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 | 14,7640 |
| 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. |
| 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) |
Description and Uses
Potassium Hydroxide is a water-soluble food additive and bleaching agent. upon exposure to air it readily absorbs carbon dioxide and moisture and deliquesces. it is used to destroy the bitter chemical constituents in olives that will be used as black olives.
Safety
| Symbol(GHS) |   GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H290-H302-H314 |
| Precautionary statements | P234-P260-P280-P301+P312-P303+P361+P353-P305+P351+P338 |
| 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) |
