What Is Cyanogen Chloride?

CNCl colorless liquid. Its vapor is very irritating. Very toxic. Soluble in water, ethanol and ether. Lively. It reacts with sodium hydroxide to produce sodium cyanate, interacts with sodium sulfide to produce sodium thiocyanate, reacts with ammonia or amines to produce aminocyanide, and interacts with alcohols to produce cyanurate. For organic synthesis.

Chinese name: cyanide chloride

English name: cyanogen chloride

Chinese name 2: Chlorocarbonitrile; Cyanide chloride

English name 2: chlorocyan

English alias Chlorocyanogen; Chlorine cyanide

Molecular formula: CNCl

Molecular weight: 61.47

CAS NO. 506-77-4 ^[1]

Main ingredients: pure

Appearance and properties: colorless liquid or gas, with tearing properties.

pH: weakly acidic after dissolving in water

Melting point (° C): -6.5

Boiling point (° C): 13.1

Relative density (water = 1): 1.22

Relative vapor density (air = 1): 1.98

saturation

harmful gas

Toxicity grade poisoning

Acute toxicity Inhalation-rat LC50: 5400mg / m ³ / 3min; inhalation-mouse LC50: 3000mg / m ³ / 30s

Hazardous characteristics of explosives: heat, sun-cylinders can be explosive; leaks emit highly toxic fumes

Flammability Hazardous properties Hydrogen cyanide, which is extremely toxic in contact with water; Poisonous cyanide and chloride fumes when combusted

Storage and transportation characteristics: storeroom ventilation, low temperature and dry; light loading and unloading

Carbon dioxide, sand

Occupational standard TWA 0.3mg / m ³ ; STEL 0.75 mg / m ^{3 [2]}

Dangerous goods mark T

Dangerous Goods Transport Number UN 1589

HazardClass 2.3

Hazardous Substances Data 506-77-4 ^[2]

In addition to similar uses as cyanogen bromide, it can also react with chloroalkanes to prepare isocyanates, amines, and carboxylic acids, and react with alcohols or ethers to form cyanates ^.

Treasury ventilated and dry at low temperature; light loading and unloading

Transport of dangerous goods UN 1589 ^[1]

Health hazard

This product is metabolized in the body

Skin contact: Remove contaminated clothing immediately and rinse skin thoroughly with soap and water. Seek medical attention.

Eye contact: Raise the eyelids immediately and rinse thoroughly with plenty of running water or saline for at least 15 minutes. Seek medical attention.

Inhalation: Quickly leave the scene to fresh air. Keep your airways open. If breathing is difficult, give oxygen. When breathing stops, give artificial respiration immediately (do not use mouth to mouth) and

Main uses and exposure opportunities: Preparation with cyanogen chloride

Operational management: Strictly closed, providing adequate local exhaust and comprehensive ventilation. Use isolated operation. Operators must be specially trained and strictly abide by the operating procedures. It is recommended that the operator wear a catheter-type gas mask, a mask-type protective gas mask, and

Acute toxicity

Toxic effect

Gas detection tube method ^[1]

Determination of cyanogen chloride in the environment by gas chromatography [Journal] / Zou Lei; Song Jiping // Shanghai Environmental Science.-1990,9 (2) .- 30 31 Analytical Chemistry Abstracts 1991.9.

Gas Chromatography "Analytical Methods for Additives in Food", pp. 42-43, translated by Ma Jiayu et al. ^[1]

American workshop hygiene standard 0.75mg / m ^{3 [1]}

(1) It has obvious stimulating effect and can cause acute chemical bronchitis, bronchitis, pneumonia and even pulmonary edema.

(2) When inhaled at a higher concentration, it shows systemic symptoms such as eye irritation, tearing, runny nose, cough, and dyspnea, as well as nausea, dizziness, fatigue, unstable gait, and disturbance of consciousness.

(3) High concentration can cause death quickly.

Treatment principle: The treatment of acute cyanogen chloride poisoning is the same as that of hydrogen cyanide, but measures for the prevention and treatment of chemical respiratory tractitis, especially the prevention of pulmonary edema should be used at the same time. In addition to reasonable oxygen therapy, early application of large doses of glucocorticoids, prevention of secretions blocking the airways (such as inhalation of 1% dimethyl silicone oil, timely sputum suction, etc.) should be the focus of treatment, and the spray inhalation route is more effective.