Chlorine oxide (Cl2O)

86.90540

86.91

232-243-5

0EQ5I4TK19

Reddish-brown liquid|Yellowish-brown gas|Red-yellow gas

9.23000

1.31060

Chlorine monoxide is a red-yellow gas. Very reactive and unstable. Unusually stored as hydrate in frozen form. Used as a wood bleach, biocide and swimming pool treatment.

1.507g/cm3

-120.6 °C

2.2 °C

1.384

1 volume of water dissolves more than 100 volumes (0°C); saturation solubility is 143.6g/100g H2O (?9.4°C) [MER06] [KIR78]

Stored as a liquid or solid at temperatures below -80 °C.

Disagreeable, penetrating odor

Henry's Law constant = 14.23 kPa/mol

Can be stored in carbon tetrachloride|Decomposes in water forming chlorine and oxygen gases|Explodes on contact with organic matter|Decomposes at a moderate rate at room temperature|For more Other Experimental Properties (Complete) data for Chlorine monoxide (8 total), please visit the HSDB record page.

Decomposes in water forming chlorine and oxygen gases.

Oxidizing Agents, Strong

Explosive

Explodes when heated or by reaction with organic materials, including: carbon, carbon disulfide, ethers, hydrocarbons, dicyanogen, any readily oxidizable materials (ammonia, potassium, arsenic, antimony, sulfur, mercury sulfide, calcium phosphide, phosphine, phosphorus, hydrogen sulfide, antimony sulfide, barium sulfide, mercury sulfide, and tin sulfide). Dissolves in alkalis, forming a mixture of chlorite and chlorate. Concentration of gas should be limited to less than 10% to reduce explosion hazard. Alcohols are oxidized explosively.

Lower 23.6 % by vol.; Upper 100% by vol.

26.3 kJ/mol

SRP: Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in air, soil or water; effects on animal, aquatic and plant life; and conformance with environmental and public health regulations. If it is possible or reasonable use an alternative chemical product with less inherent propensity for occupational harm/injury/toxicity or environmental contamination.

Explodes on contact with organic materials.|Can ... be caused to explode by a spark or by heating.|Incompatible with carbon, dicyanogen, diphenylmercury, nitrogen oxide, oxidizable materials, and potassium.|Explodes on contact with alcohols, ammonia, antimony, antimony sulfide, arsenic, barium sulfide, calcium phosphide, carbon, carbon disulfide vapor, charcoal, cork, dicyanogen ethers, hydrogen sulfide, mercury sulfide, nitrogen oxide, paper, phosphine, phosphorus, potassium, rubber, sulfur, tin sulfide, turpentine, and other oxidizable materials.|For more Hazardous Reactivities and Incompatibilities (Complete) data for Chlorine monoxide (15 total), please visit the HSDB record page.

Flammable - 4th degree, Reactive - 3rd degree

|Danger|H290 (100%): May be corrosive to metals [Warning Corrosive to Metals]|P234, P260, P264, P273, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P390, P391, P404, P405, and P501|Aggregated GHS information provided by 33 companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Self-explodes.|The liquid at 2 °C is spark- and touch-sensitive. The gas may explode when heated above 42 °C.

Stop flow of gas.

SRP: The scientific literature for the use of contact lenses by industrial workers is inconsistent. The benefits or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.

Intensely irritating to eyes, skin, mucous membranes, respiratory tract.|Strong irritant to eyes, skin, and mucous membranes.

| 3 - Materials that, under emergency conditions, can cause serious or permanent injury.| 4 - Materials that rapidly or completely vaporize at atmospheric pressure and normal ambient temperature or that are readily dispersed in air and burn readily.| 3 - Materials that in themselves are capable of detonation or explosive decomposition or explosive reaction but that require a strong initiating source or must be heated under confinement before initiation.

IDENTIFICATION AND USE: Chlorine monoxide is a reddish-brown explosive liquid or yellowish-brown explosive gas. HUMAN STUDIES: Chlorine monoxide is intensely irritating to eyes, skin, mucous membranes, respiratory tract. ANIMAL STUDIES: There are no data available.

Chlorine monoxide's use as a chlorinating agent(1) may result in its release to the environment through various waste streams(SRC). It's use as a wood bleach, biocide and in swimming pool treatment(2) will result in its direct release to the environment(SRC).

/SRP:/ Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Poisons A and B/|/SRP:/ Basic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if needed. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 mL/kg up to 200 mL of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool ... . Cover skin burns with dry sterile dressings after decontamination ... . /Poisons A and B/|/SRP:/ Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in severe respiratory distress. Positive-pressure ventilation techniques with a bag valve mask device may be beneficial. Consider drug therapy for pulmonary edema ... . Consider administering a beta agonist such as albuterol for severe bronchospasm ... . Monitor cardiac rhythm and treat arrhythmias as necessary ... . Start IV administration of D5W TKO /SRP: "To keep open", minimal flow rate/. Use 0.9% saline (NS) or lactated Ringer's (LR) if signs of hypovolemia are present. For hypotension with signs of hypovolemia, administer fluid cautiously. Watch for signs of fluid overload ... . Treat seizures with diazepam (Valium) or lorazepam (Ativan) ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Poisons A and B/|/SRP:/ Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. obtain attention. /Explosives/|For more Antidote and Emergency Treatment (Complete) data for Chlorine monoxide (6 total), please visit the HSDB record page.

/SIGNS AND SYMPTOMS/ Intensely irritating to eyes, skin, mucous membranes, respiratory tract.

Chlorine oxide (Cl2O): ACTIVE

Dichlorine monoxide can be quantitatively determined alone or in admixture with Cl2, by iodometry; the acid consumed is a direct measure of Cl2O.|Gaseous mixtures of Cl2, Cl2O, and HOCl can be analyzed by mass spectrometry, by IR, or by UV spectrophotometry. Gas chromatography can be used to analyze mixtures of air, Cl2, and Cl2O.

Fire Hazards -> Flammable - 4th degree, Reactive - 3rd degree