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K2S2O8

Combustion supporting and irritant chemicals

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K2S2O8 Chinese name: Potassium persulfate High potassium sulfate English name: Potassium persulfate Molecular formula ：K2S2O8。 This product is combustion supporting, with thrill 。

Chinese name: Potassium persulfate and potassium persulfate
Foreign name: potassium persulfate

Molecular formula: K2S2O8
Disposal method: Misty water, sand, foam

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eleven Waste disposal
twelve Regulatory information

Basic information

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[Chinese name of chemical] Potassium persulfate High potassium sulfate

[English name of chemical] potassium persulfate

【 Molecular formula 】K two S two O eight

Chemical characteristics relative molecular mass : 270.32. White crystal. Odorless. The aqueous solution is acidic. Gradually decompose and release in case of moisture oxygen 。 Soluble in water, insoluble in ethanol 。 Relative density: 2.477 Melting point: decomposition below 100 ℃

[Fire hazard] and combustible Such as sulfur, phosphorus, organic matter reducing agent Mixed, can become Explosive mixture 。

[Disposal method] Foggy water , sand, foam.

Health hazard: Inhalation of this product dust is irritating to the nose, throat and respiratory tract, causing cough and chest discomfort. Irritating to eyes. Swallowing stimulates the mouth and gastrointestinal tract, causing abdominal pain Nausea and vomiting 。 Chronic effects: Allergic constitution Contact may cause skin rash.

Flammability hazard: This product supports combustion and is irritant.

First aid measures

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Skin contact: Take off contaminated clothes and wash with plenty of flowing water.

Eye contact: lift Eyelid , use flowing water or normal saline rinse. Get medical attention.

Inhalation: quickly leave the site to a place with fresh air. Keep the respiratory tract unobstructed. as dyspnea , for Oxygen transfusion 。 as Apnea , proceed immediately Artificial respiration 。 Get medical attention.

Ingestion: drink enough warm water, Emetic 。 Get medical attention.

Fire fighting measures

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Hazard characteristics: inorganic oxidant. And organic matter reducing agent 、 combustible For example, sulfur and phosphorus may cause combustion and explosion when they are contacted or mixed. Explosion may occur when heated sharply.

Harmful Combustion products ： Sulfur oxide Oxygen.

Fire extinguishing method: Foggy water , foam sand Fire fighting.

Leakage emergency treatment

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Emergency treatment: isolate the leakage contaminated area and restrict access. It is recommended that emergency handling personnel wear Dust mask （ Full face mask ）, wear Antivirus clothing 。 Do not touch the leakage directly. Do not allow leakage and organic matter reducing agent Contact with combustible materials. Small amount of leakage: sprinkle soda ash on the ground and collect it in a dry, clean and covered container. A large amount of water can also be used for flushing, and the diluted washing water will be discharged into the waste water system. Large amount of leakage: collect and recycle or transport to waste disposal site for disposal.

Operation precautions

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Close operation and strengthen ventilation. Operators must be specially trained and strictly abide by the operating procedures. It is recommended that the operator wear a hood type electric air supply filter type dust respirator and wear polyethylene Antivirus clothing , Dai Rubber gloves 。 Keep away from kindling and heat sources, and smoking is strictly prohibited in the workplace. Avoid dust 。 Avoid and reducing agent Active metal powder, alkali alcohols Contact. Load and unload gently during transportation to prevent damage to packaging and containers. Vibration, impact and friction are prohibited. Fire fighting equipment and leakage emergency treatment equipment of corresponding types and quantities shall be provided. Empty containers may leave harmful substances.

Precautions for storage

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Store in a cool, dry and well ventilated warehouse. Keep away from kindling and heat sources. Packing and sealing. It shall be stored separately from reducing agents, active metal powders, alkalis, alcohols, etc., and mixed storage is strictly prohibited. The storage area shall be equipped with appropriate materials to contain leakage.

Individual protection

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Occupational exposure limit

China MAC (mg/m3): no standard

Former Soviet Union MAC (mg/m3): no standard

TLVTN： ACGIH 5mg[S2O4]/m3

TLVWN: no standard

Monitoring method:

Engineering control: the production process is closed and ventilation is strengthened. Provide safety shower and eyewash equipment.

Respiratory system protection: possible contact dust The head cover type electric air supply filter type dust respirator should be worn. In high concentration environment, it is recommended to wear self-contained breathing apparatus.

Eye protection: protection has been made in respiratory system protection.

Body protection: wear polyethylene Antivirus clothing 。

Hand protection: wear Rubber gloves 。

Other protection: smoking, eating and drinking are prohibited at the work site. After work, take a shower and change clothes. Keep good hygiene habits.

Physical and chemical properties

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Main ingredients: pure

Appearance and property: white crystal, odorless, with Deliquescence 。

pH：

melting point (℃): no data

boiling point (℃): no data

relative density (Water=1): 2.48

Relative vapor density (air=1): no data

Saturated vapor pressure (kPa): no data

Heat of combustion (kJ/mol): meaningless

critical temperature (℃): meaningless

critical pressure (MPa): meaningless

Octanol /Water partition coefficient Logarithmic value of: no data

flash point (℃): meaningless

Pilot temperature (℃): meaningless

Upper explosive limit %(V/V): meaningless

Lower explosive limit %(V/V): meaningless

Solubility : Soluble in water, insoluble in ethanol 。

Main use: as bleaching agent Oxidant , photographic drugs Analytical reagent , polymerization accelerator, etc.

Other physical and chemical properties: 100

stability

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stability ：

Prohibitions: strong reducing agent, active metal powder Strong base , water alcohols 。

Conditions to avoid contact: humid air.

Polymerization hazard:

Decomposition products:

Toxicological data

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acute toxicity ： LD50：802 mg/kg( Rat Oral)

LC50 : No data

Subacute and Chronic toxicity ：

thrill:

Sensitization ：

Mutagenicity ：

Teratogenicity ：

carcinogenicity ：

Ecological data

Ecotoxicological toxicity:

Biodegradability ：

Non biodegradable:

Bioconcentration or Bioaccumulation Sex:

Other harmful effects: no data available.

Waste disposal

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Waste nature:

Waste disposal method: dispose according to relevant national and local regulations. Or contact the manufacturer or manufacturer to determine the disposal method.

Disposal precautions:

Transport information

Dangerous goods No.: 51504

UN No.: 1492

Packing mark ：

Packing group: O53

Packaging method: plastic bag Or two layers of cowhide paper bag Outer full opening or middle opening steel drum; Ordinary wooden case outside plastic bag or two-layer kraft paper bag; Screw mouth glass bottle, iron cap pressure mouth glass bottle, plastic bottle or ordinary wooden case outside metal bucket (can).

Precautions for transportation: during railway transportation, the dangerous goods shall be loaded in strict accordance with the dangerous goods loading table in the Dangerous Goods Transportation Rules of the Ministry of Railways. It shall be transported separately, and the container shall not leak, collapse, fall or be damaged during transportation. The transport vehicles shall be equipped with corresponding types and quantities of fire-fighting equipment. It is forbidden to mix with acids, inflammables, organics reducing agent 、 spontaneous combustion material 、 Inflammable materials in wet condition Wait for parallel transportation. During transportation, the speed should not be too fast, and forced overtaking is not allowed. Transport vehicles shall be thoroughly cleaned before and after loading and unloading. It is forbidden to mix organics combustible And other impurities.

Regulatory information

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Regulations Information Regulations on the Safety Management of Dangerous Chemicals (issued by the State Council on February 17, 1987), Rules for the Implementation of the Regulations on the Safety Management of Dangerous Chemicals (HLF [1992] No. 677), Regulations on the Safe Use of Chemicals in the Workplace (LBF [1996] No. 423) and other regulations have made corresponding provisions on the safe use, production, storage, transportation, loading and unloading of dangerous chemicals; The classification and marks of commonly used hazardous chemicals (GB 13690-92) classify the substance as Category 5.1 Oxidant 。

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