Product Identification

Product Name

Potassium thiocyanate

Synonyms

Arterocyn
Potassium Isothiocyanate
Rhocya

CAS

333-20-0

Formula

CKNS

Molecular Weight

97.18

EINECS

206-370-1

RTECS

XL1925000

RTECS Class

Agricultural Chemical and Pesticide; Drug; Mutagen; Reproductive Effector; Human Data

Merck

12,7866

Beilstein/Gmelin

21362 (G)

EC Index Number

615-004-00-3

EC Class

harmful

Physical and Chemical Properties

Appearance

Colorless to white, odorless crystals.

Solubility in water

71 g/L (25 C)

Melting Point

175

Boiling Point

500

Density

1.61 g/cm3

Heat Of Vaporization

Usage

Production of artificial mustard oil, fungicide, insecticide.

Vapor Density

N/R

Refractive Index

1.558 (174 C)

First Aid Measures

Ingestion

Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid. May cause irritation of the digestive tract and possible burns.

Inhalation

Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration.

Skin

Get medical aid. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.

Eyes

Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage

Storage

Keep from contact with oxidizing materials. Keep away from acids. Store in a cool, dry area away from incompatible substances.

Handling

Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with skin and eyes. Keep container tightly closed.

Hazards Identification

Inhalation

May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.

Skin

Causes skin irritation. May be absorbed through the skin in harmful amounts.

Eyes

Causes eye irritation. Poisoning can cause swelling of the eyelids, delerium, blurred vision, and hallucinations.

Ingestion

May cause irritation of the digestive tract. May be harmful if swallowed.

EC Risk Phrase

R 20/21/22 32

EC Safety Phrase

S 13

Exposure Controls/Personal Protection

Personal Protection

Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective clothing to minimize contact with skin. Clothing: Wear appropriate protective clothing to minimize contact with skin.

Respirators

A NIOSH/MSHA approved air purifying dust or mist respirator or European Standard EN 149.

Exposure Effects

Effects may be delayed.

Exposure limit(s)

OSHA TWA: 5 mg/m3 as CN

Poison Class

3

Fire Fighting Measures

Flash Point

500

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam.

Accidental Release Measures

Small spills/leaks

Vacuum or sweep up material and place into a suitable disposal container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity

Incompatibilities

Acids, methanoic acid, oxalic acid), strong oxidizing agents.

Stability

Stable under normal temperatures and pressures.

Decomposition

Carbon monoxide, oxides of nitrogen, oxides of sulfur, carbon dioxide, cyanide fumes.

Transport Information

HS Code

2838 00 00