Potassium Hydroxide Solution (50%)

UN Number: 1814 - CAS Number: 1310-58-3

Also known as: Caustic Potash, Potassium Hydrate, Potash, Potassa, Potassium Hydroxide Solution, Potash Lye, Potassium Hydroxide (K(Oh)), Potassium Hydroxide Solid, Caustic Potash Solid, Caustic Potash Solution, Potassium Hydrate Solution, Potassium Hydrate Solid, Potassium Hydroxide, Potassium Hydroxide Solution (50%), Hydroxyde De Potassium (Solution)
Information on chemical

Information on chemical

External resources

CAMEO Chemical Database
WISER Substance List

Description

UN number 1814
CAS number 1310-58-3
Formula KOH(H2O)

Physical chemical data

Physical State (25°C) Liquid
Kinematic viscosity (cSt)
5.25 [cSt] at a temperature of 20°C
Solubility (g/L)
10000000 [g/L] at a temperature of 20°C and salinity of 0‰
Boiling Point (°C) 145
Melting Point (°C) -43

Behaviour at sea

Additional data

MARPOL pollution category
Category Description
Y Noxious Liquid Substances which, if discharged into the sea from tank cleaning or deballasting operations, are deemed to present a hazard to either marine resources or human health or cause harm to amenities or other legitimate uses of the sea and therefore justify a limitation on the quality and quantity of the discharge into the marine environment.

Transportation data

Reactivity data

Abilities Solution.

GESAMP Hazard profile

Bioaccumulation in logPow (A1A) 0 - e <1, or > ca.7, or Mol. Wt. > 1000
Bioaccumulation (A1) 0 - No potential to bioaccumulate
Biodegradation (A2) R - Readily biodegradable
Acute aquatic toxicity (B1) (LC/EC/IC50 (mg/l)) 2 - Slightly toxic
Acute mammalian toxicity by swallowing (C1) (LD50 (mg/kg)) 1 - Slight
Acute mammalian toxicity by skin penetration (C2) (LD50 (mg/kg)) 0 - Negligible
Acute mammalian toxicity by inhalation (C3) (LC50 (mg/l)) 2 - Moderate
Skin irritation/corrosivity (D1) 1 - Mildly irritating
Eye irritation/corrosivity (D2) 1 - Mildly irritating
Interference with coastal amenities (E2) ED - Evaporator/Dissolver
Effects on wildlife and bottom habitats (E3) 3 - Is highly acutely toxic; and/or is severely irritant or corrosive to skin or eyes; and/or is carcinogenic, mutagenic or reprotoxic; and/or is a floater or persistent floater with associated health effects

Human toxicity threshold

Corrosive Harmful
Hazard statements
Physical
H290 May be corrosive to metals.
Health
H302 Harmful if swallowed.
H314 Causes severe skin burns and eye damage.
Precautionary statements
Prevention
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
Response
P303 + P361 + P353 IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P310 Immediately call a POISON CENTER or doctor/physician.

Ecotoxicity

Incident reports

Incident reports

No incident reports available

Emergency Response Guidebook

Emergency Response Guidebook

Guide number: 154

See the guide or download the emergency response guidebook

At sea emergency guide

At sea emergency guide

No guides available

Decision trees

Decision trees

No decision trees available

No additional data

last modified 2020-12-14T09:02:53+00:00