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Three chlorine, phosphorus, a kind of industrial chemical raw materials, is a colorless transparent liquid. Colorless and transparent liquid with pungent odor, violent smoke in the humid air, hydrolysis into phosphoric acid and hydrogen chloride, further formation of HP2O4Cl3.
Chinese name three chlorine oxygen phosphorus English name NPKs oxychloride not said three chlorine phosphorous; molecular weight of phosphorus oxychloride chemical formula POCl3 153.33 CAS Registry Number 10025-87-3 EINECS entry number 233-046-7 melting point of 125 DEG C boiling point 105.8 degrees like colorless clear liquid gas flavor has pungent odor relative density 1.645 (25 DEG C) risk marker 20 (acidic corrosion products)
catalog
1 Introduction
After the control information
After.
After the chemical formula
After the molecular formula
After the relative molecular mass
After characters
After storage
After use
2 basic information
3 physical and chemical properties
4 preparation method
5 use
6 emergency handling
7 management methods
8 toxicology
9 emergency medical treatment
10 hazardous nature
11 diagnostic points
12 principles of treatment
Profile editor
Control information
Three chlorine oxygen phosphorus originally belong to the "highly toxic chemicals catalog (2002 Edition)" in the material, by the public security department control.
According to the catalogue of dangerous chemicals (2015 Edition) [1] this product is no longer included in the list of toxic drugs, the public security department will no longer be the product as a highly toxic control.
name
Three chlorine oxygen phosphorus
Phosphorus three
Phosphorus three
Chinese alias: three phosphoryl chloride; phosphorus oxychloride; three phosphorus oxychloride; phosphoryl chloride; phosphorus oxychloride; phosphorus oxychloride; three phosphorus oxychloride
Alias in English: Phosphorusoxychloride, Phosphorusoxidetrichloride, PhosphorylchlorideFosforoxychlorid; for opcl3; Oxychlorid fosforecny; [2] oxychloridfosforecny; Phosphoroxidchlorid; Phosphortrichloridoxid; phosphorus chloride oxide (POCl 3); phosphorus oxytrichloride; Phosporus Oxychloride; onto trichloride
chemical formula
POCl3
Molecular formula
POCl3
relative molecular mass
One hundred and fifty-three point three three
character
Colorless clear liquid. Irritating odor. Strong smoke. Moisture absorption. Water and ethanol decomposition heat. Relative density (D25) 1.675. Melting point 1.25. Boiling point 105.8. Moderate toxicity, median lethal dose (rat, oral) 380mg/kg. Tear resistance and corrosion resistance.
Storage
Sealed in a cool, dry and dry place.
purpose
Chlorination agent, which can replace the oxygen in organic compounds. Oxidizing agent. Catalyst. Solvent for the determination of freezing point lowering.
Used as a semiconductor dopant, and as a light guide fiber material.
Widely used in the production of pesticide, medicine, dye, phosphate and flame retardant agent is manufacturing raw material of organic phosphorus pesticides, herbicides, Chlordimeform, used in the production of plastic plasticizer. It is also used in the chlorination reaction of the long acting drug, it is the intermediate of the production of the dye, the organic synthesis of the chlorine agent and the catalyst, the extracting agent of the uranium ore and so on.
Three phosphorus oxychloride is the organic phosphorus pesticide manufacturing raw materials. For the production of phosphoric acid two benzene - isooctyl phosphate, three ethyl phosphate and the production of plastic plasticizer. Chlorination reaction for long acting drug. Production of dye intermediates, organic synthesis of chlorinated agents and catalysts, uranium extraction agent.
Trichloro phosphate oxygen trivial phosphorus oxychloride in organic phosphorus pesticide synthesis is mainly used for synthesis of another kind of phosphorus containing intermediates - phosphoryl chloride or phosphoryl chloride, such as synthesis of O, O-diethyl thiophosphoryl chloride, and synthetic pesticides ethyl sulfur phosphorus rings, or synthesis of O - ethyl phosphoryl dichloro and synthetic pesticide destroy phosphorus line etc.. In other aspects, three chlorine oxygen phosphorus can be used as a chloride agent, catalyst, plastic plasticizer, dye intermediates, etc., but also for the pharmaceutical industry and organic synthesis.
Basic information editor
Three chlorine oxygen phosphorus
English Name: oxychloride phosphorus
Alias: three dialifor; phosphorus oxychloride; phosphoryl chloride; phosphorus oxychloride; three phosphorus oxychloride
No.:10025-87-3 CAS
EINECS No. 233-046-7[3]
Molecular formula: POCl3
Molecular weight: 153.33
Hazard markers: 20 (acid corrosion products)
Packaging category: II
Packing method: closed thick steel drums, with 2 ~ 3 mm thick steel plate welded, the barrel has two sets of rolling hoop. Screw thread hole, a cover, gasket, sealing fittings intact, barrel net weight does not exceed 300 kg; glass bottles or plastic barrels (tank) and open drums; glass bottles or plastic barrels (tank) outside the ordinary wooden box or semi lattice boxes; frosted edge of glass bottles or threaded mouth glass bottles of ordinary wooden box; ampoule bottle of ordinary wooden box.
Summary: three chlorine oxygen phosphorus (molecular formula: POCl3), also known as the phosphoryl chloride, phosphorus oxychloride, phosphorus oxychloride is an industrial chemical, is a colorless transparent liquid. Irritating odor. In the humid air, severe smoke. Relative density 1.67. Melting point 1.25. Boiling point 105.1. Decomposition of phosphoric acid and hydrogen chloride in water and ethanol. When a large amount of water is poured into the water, it can react violently. POCl3 react with water and alcohol to produce phosphoric acid or phosphate, such as: O=PCl3 + 3 H2O - O=P (OH) 3 + 3 HCl if the reaction of alcohol in place of water, the product is three alkyl phosphate. Such reactions are often carried out in pyridine or amines to absorb the generated HCl, to promote the reaction. Lewis acids such as manganese chloride catalyzed by POCl3 (ArOH) with excess phenol heat three aryl phosphate. For example, the reaction with phenol: 3 C6H5OH + O=PCl3 + O=P (OC6H5) 3 + 3 HCl, three P is Lewis base, and a lot of Lewis acid to form adducts. As with the four titanium tetrachloride reaction: TiCl4 + Cl3P+-O-TiCl4, Cl3P+-O and aluminum chloride generated adduct (AlCl3 / POCl3) is very stable, POCl3 is also used for the removal of AlCl3 from the Fu Ke reaction. In the presence of POCl3, AlCl3 and hydrogen bromide react to generate POBr3. From industrial oxygen or phosphorus trichloride and phosphorus pentoxide were prepared, mainly for the production of phosphate such as tricresyl phosphate.

Editing of physical and chemical properties
Main ingredients: content: industrial grade more than 99%.
Phosphorus three
Phosphorus three (3)
Appearance and properties: colorless and transparent liquid with pungent odor, violent smoke in wet air, hydrolysis into phosphoric acid and hydrogen chloride, further formation of H[P2O4Cl3].
Melting point (c): 1.25
Boiling point (c): 107 degrees [4] C
Relative density (water =1): 1.68 (15.5 degrees C) d (25) =1.645
Relative vapor density (air =1): 5.3
Vapor pressure (kPa): 5.33 (27.3 C)
Solubility: soluble in alcohol, soluble in water.
Stability and reactivity: stability
Hazardous characteristics: the case of severe water decomposition, resulting in a large number of heat and smoke, and even the explosion. Corrosion of many metals, especially in humid air conditions.
Forbidden complex: strong reducing agent, active metal powder, water and alcohol.

Use Edit
For preparing phosphoric acid diphenyl - isooctyl, triethyl phosphate, phosphate, plastic plasticizer, organic phosphorus pesticide, long-acting sulfa drugs. Can also be used as dye intermediates, organic synthesis of chlorinated flame retardant agent and catalyst.
The use of electronic grade three phosphorus oxychloride in the solar industry, integrated circuit, separation device, light preform and other liquid phosphorus sources but also for the preparation of phosphate.
N type doping source is mainly used in the semiconductor industry, the best reaction effect at 0 DEG C.
Emergency editing
Skin contact: immediately remove contaminated clothing, flush with plenty of water for at least 15 minutes. Medical treatment.
Eye contact: immediately filed eyelid, with plenty of liquid water or saline rinse thoroughly for at least 15 minutes. Medical treatment.
Inhalation: remove to fresh air. To maintain airway patency. If breathing is difficult, give oxygen. If breathing has stopped, artificial respiration immediately. Medical treatment.
Ingestion: rinse with water, no corrosion symptoms of gastric lavage. Not to use oil. Medical treatment.
Respiratory protection: its vapor may come into contact, they must wear self absorption filter mask (full cover) or isolated respirator. Emergency rescue or evacuation, it is recommended to wear air respirator.
Eye protection: protection for respiratory protection.
Body protection: wear rubber acidproof alkali.
Hand protection: wear rubber gloves.
Other protection: smoking, eating and drinking water. Work finished, shower and change. Separate the clothes that are contaminated by poison, and then wash them back. Maintain good hygiene practices.
Leak emergency treatment: the rapid evacuation of the contaminated area personnel to the safe area, and immediately isolate 150m, strictly limit access. Recommended emergency personnel wear self positive pressure respirator, wear anti acid overalls. Don't direct contact with the spill. As far as possible to cut off the source of leakage. A small leak: absorb with sand, vermiculite or other inert materials. A large leak: construct a barrierpit to contain. Clear under the guidance of experts.
Hazardous combustion products: hydrogen chloride, phosphorus oxide, phosphine.
Fire extinguishing methods: fire extinguishing agent: dry powder, dry sand. Ban water.
Management method editor
Operation management: closed operation, attention to ventilation. Operation as much as possible mechanization, automation. Operator must undergo special training, strictly comply with the operating procedures. Recommend the operator to wear self absorption filter gas mask (full cover), wear rubber acid and alkali resistant clothing, wear rubber gloves. Avoidance of smoke. To prevent smoke and steam release in the air of workplace. Avoid reducing agent, active metal powder and alcohol contact. Pay particular attention to avoid contact with water. When moving to light light unloading, prevent damage to packaging and containers. Equipped with emergency treatment equipment. Empty containers may be harmful remains.
Storage management: store in a cool, dry and ventilated warehouse. Keep away from fire and heat source. Base temperature does not exceed 25 degrees, relative humidity of not more than 75%. The packing must be sealed, keep dry. With the reducing agent, active metal powder, alcohol and stored separately, avoid mixing reservoir. Storage areas should be equipped with emergency treatment equipment and proper acceptancematerials.
Management of transportation, railway transportation should be in strict accordance with the Ministry of Railways on the transport of dangerous goods regulations of dangerous cargo loading table for compatibility. Shipment to complete the packing, loading should be safe. The transport process to ensure that the container does not leak, no collapse, not falling, not damage. With no reducing agent, active metal powder, alcohol, edible chemical conventionalmixing luck. Transport vehicles should be equipped with emergency treatment equipment. Transportation should prevent insolation, rain, high temperature resistant. Highway transportation according to regulations when driving route, do not stay in residential areas and densely populated areas.
Waste management: before disposal should refer to the national and local regulations. Pour the sodium bicarbonate solution, by spraying ammonia water and ice, after stopping the reaction, water into the waste water system.

Principles of editing
(1) is mainly from the scene, to maintain airway patency, give oxygen. Early enough, short-term use of corticosteroids for prevention and control of pulmonary edema. The use of large doses of antibiotics to control infection. Given spasmolysis, sedation, cough and other symptomatic treatment.
(2) skin contamination, should use paper or cotton adsorption, then 2% sodium bicarbonate wet compress. May also use the wound exposure therapy, but not used ointment or fat dressing. Burn the skin scab as soon as possible after debridement or excision of eschar excision and skin graft can not only prevent the phosphorus absorption, but also can avoid wound infection.
(3) eye burns, should be fully washed (2% boric acid) and prevention of infection (coated with antibiotic ointment or eyedrops). Also can take the ball conjunctiva under the self blood injection therapy, expand the pupil, antibiotic washing and so on.
(4) pay attention to the protection of vital organ function.
Three chlorine oxygen phosphorus is a kind of industrial chemical raw materials, is a colorless transparent liquid. Poisoning mechanism is hydrolyzed with phosphorus oxychloride to produce phosphoric acid and hydrochloric acid (hydrogen chloride aqueous solution), under normal circumstances, the hydrogen chloride on skin and mucous membrane with irritation and burning effect, severe cases can cause congestion, edema and necrosis; inhalation can cause pulmonary edema, resulting in ventilation dysfunction, clinical symptoms of chest tightness, shortness of breath and breathing difficulties.