Storage age

It belongs to the first-class flammable dangerous goods, stored in a cool and ventilated place to prevent collision during transportation.

MIBK

Chinese name: methyl isobutyl ketone; 4- methyl -2- pentanone; MIBK

English name: methyl isobutyl ketone; ; 4- methyl -2- pentanone

Molecular formula: C6H 12O.

Molecular weight: 100. 16

Si Nuo. : 108- 10- 1

RTECS number: SA9275000

Un number: 1245

Dangerous goods number: 32075

IMDG rule page 3257

physicochemical property

Appearance and properties: water-like transparent liquid with pleasant ketone fragrance.

Main uses: used as solvent for painting, nitrocellulose, some fiber ethers, camphor, grease, natural and synthetic rubber.

Melting point: -83.5

Boiling point: 1 15.8

Relative density (water = 1): 0.80 (25℃)

Relative density (air = 1): 3.45.

Saturated vapor pressure (kpa): 2. 13 (20℃)

Solubility: Slightly soluble in water, easily soluble in most organic solvents.

Critical temperature (℃): 298.2

Critical pressure (MPa): 3.27

Flammability: Flammable

Classification of building codes and fire risks

Flash point (℃): 15.6

Autoignition temperature (℃): Ignition temperature (℃): 459.

Lower explosion limit (v%): 1.35.

Upper explosion limit (V%): 7.5

Hazard characteristics: its vapor forms an explosive mixture with air, which will cause combustion and explosion when exposed to open flame and high heat energy. Can react strongly with oxidant. Its vapor is heavier than air, and it can spread to a considerable distance at a lower place, which will lead to tempering when it meets an open flame. In case of high heat, the internal pressure of the container rises, which is in danger of rupture and explosion. Dissolve some plastics, resin and rubber.

Combustibility (red): 3

Reactivity (yellow): 1

Combustion (decomposition) products: carbon monoxide and carbon dioxide.

Stability: stability

Danger of aggregation: it won't happen.

Taboo: strong oxidant, strong reductant and strong alkali.

Fire extinguishing methods: anti-soluble foam, carbon dioxide, dry powder and sand. If the substance or contaminated liquid enters the waterway, notify the downstream users of potential water pollution, and notify local health and fire officials and pollution control departments. Outside the safe explosion-proof distance, use atomized water to cool the exposed container.

Packaging: steel drum with small opening; Ordinary wooden cases outside ampoules; Screw-capped glass bottles, iron-capped glass bottles, plastic bottles or ordinary wooden cases outside metal barrels (cans).

Storage and transportation: transport vehicles should be equipped with corresponding varieties and quantities of fire fighting equipment and leakage emergency treatment equipment. The best luck is in the morning and evening in summer. The tank (tank) truck used for transportation should have a grounding chain, and a perforated partition can be set in the tank to reduce static electricity generated by vibration. It is strictly prohibited to transport with oxidants, reductants, alkalis and edible chemicals. Exposure, rain and high temperature should be prevented during transportation. Stay away from fire sources, heat sources and high temperature areas during stopovers. The exhaust pipe of the vehicle carrying this article must be equipped with a fire retardant device, and it is forbidden to use mechanical equipment and tools that are easy to generate sparks for loading and unloading. Highway transportation shall follow the prescribed route and shall not stay in residential areas and densely populated areas. When transporting by rail, it is forbidden to slip. It is forbidden to transport in bulk by wooden boats and cement boats.

Hazard category: flammable liquid with flash point of 3.2.

Dangerous goods packaging mark: 7

Packing category: Ⅱ

Precautions for storage and transportation: Store in a cool and ventilated warehouse. Stay away from fire and heat sources. The warehouse temperature should not exceed 30℃. Avoid direct sunlight. Keep the container sealed. Should be stored separately from oxidant. Lighting, ventilation and other facilities in the storage room should be explosion-proof. Fire and explosion-proof technical measures should be taken when storage tanks are stored. It is forbidden to use mechanical equipment and tools that are easy to generate sparks. When handling, handle with care to prevent the packaging and containers from being damaged. ERG guide: 127 ERG guide classification: flammable liquid (polarity/water miscibility)

Toxic hazard

Exposure limit: China MAC: former Soviet MAC: 1mg/m3 US TLV-TWA: 50ppm US TLV-STEL: 75ppm.

Invasion route: inhalation, ingestion and percutaneous absorption.

Toxicity: LD50:2080/kg (oral), LC50:32720/m3 (inhalation) for 4 hours.

Health hazards: Inhalation (4. 1g/m3) will cause central nervous system depression and anesthesia; Inhalation (0.4 1 ~ 2.05g/m3) can cause nausea, vomiting, loss of appetite, abdominal pain and respiratory irritation. When it is lower than 84mg/m3, there is no discomfort. Idlh: 500 ppm olfactory threshold: 0. 12 1ppm Mosha table Z- 1 air pollutant: NIOSH standard document: NIOSH 78 ~ 173, ketone health hazard (blue): 2.

first aid

Skin contact: Take off contaminated clothes and rinse with running water. Pay attention to keep the patient warm and quiet. Ensure that medical personnel understand the personal protection knowledge related to the substance and pay attention to their own protection.

Eye contact: immediately open the upper and lower eyelids and rinse with flowing water 15 minutes. See a doctor.

Inhalation: Leave the site and go to a place with fresh air. Oxygen is given when breathing is difficult. When breathing stops, give artificial respiration immediately. See a doctor.

Ingestion: people who take it by mistake should drink enough warm water to induce vomiting and seek medical advice.

Emergency treatment: quickly evacuate the personnel in the leaked and polluted area to a safe area, isolate them, and strictly restrict access. Cut off the fire. It is recommended that emergency personnel wear self-contained positive pressure breathing apparatus and protective clothing. Cut off the leakage source as much as possible. Prevent it from flowing into confined spaces such as sewers and flood discharge ditches. Small amount of leakage: absorbed by sand, vermiculite or other inert substances. A large number of leaks: damming or digging holes to contain them. Cover with foam to reduce steam disaster. Spray-like water or foam cools and dilutes steam to protect field personnel. Use explosion-proof pump to transfer it to tank car or special collector, and recycle it or transport it to waste disposal site for treatment.

Precautions for operation: closed operation and comprehensive ventilation. Operators must be specially trained and strictly abide by the operating procedures. Operators are advised to wear filter gas masks (half masks), chemical safety glasses, gas permeable work clothes and rubber oil-resistant gloves. Stay away from kindling and heat sources, and smoking is strictly prohibited in the workplace. Use explosion-proof ventilation system and equipment. Prevent the steam in the workplace from leaking into the air. Avoid contact with oxidants, reductants, acids and bases. When handling, handle with care to prevent the packaging and containers from being damaged. Equipped with corresponding varieties and quantities of fire fighting equipment and leakage emergency treatment equipment. Empty containers may leave harmful substances behind.

Precautions for storage: Store in a cool, dry and well-ventilated incombustible warehouse. Stay away from fire and heat sources. The reservoir temperature should not exceed 30℃. Keep the container sealed. Should be stored separately from oxidant, reducing agent, acid, alkali, etc. , and should not be mixed. Adopt explosion-proof lighting and ventilation facilities. It is forbidden to use mechanical equipment and tools that are easy to generate sparks. The storage area should be equipped with emergency response equipment for leakage and suitable accommodation materials.

protective measure

Engineering control: close the operation and pay attention to ventilation.

Respiratory system protection: it is recommended to wear a gas mask when it may come into contact with its vapor. Self-contained breathing apparatus should be worn in high concentration environment. NIOSH/OSHA500ppm: respirator with medicine box to prevent organic vapor, full-face respirator with organic vapor filter box (gas mask), electric air purification respirator with organic vapor filter box, air supply respirator and self-carrying respirator. Emergency or planned entry into an area with unknown concentration, or in an immediate life-threatening or health-threatening situation: self-contained positive pressure full-face respirator, air-supplied positive pressure full-face respirator supplemented by auxiliary self-contained positive pressure respirator. Escape: air purification type full-face respirator (gas mask) with organic vapor filter box and self-carried escape respirator.

Eye protection: Wear chemical safety glasses when chemicals may come into contact with its vapor.

Protective clothing: wear anti-static work clothes.

Hand protection: Wear protective gloves when exposed to high concentrations.

Others: Smoking is strictly prohibited in the workplace. Avoid long-term repeated contact.

Leakage treatment: cut off the fire source. Wear self-contained breathing apparatus and general fire protection clothing. Stop plugging when safety is ensured. Spray can reduce evaporation. Rinse with plenty of water and put the diluted lotion into the wastewater system. If there is a large amount of leakage, it will be contained by dike, and then collected, transported, recovered or discarded after harmless treatment. Environmental information: Law on Prevention and Control of Air Pollution: Harming Air Pollutants (Article 1 A12). EPA hazardous waste code: U 16 1. Law on Resource Protection and Restoration: 26 1, toxic substances or no other provisions. Resource protection and recycling law: it is forbidden to store waste on land. Resource protection and recovery method: the general standard wastewater treatment is 0.1.4 mg/l; Non-liquid waste 33 mg/kg. Safe drinking water method: main table (55FRl470). Emergency plan and community right to know law: the quantity reported in paragraph 304 is 2270 kg. Emergency plan and community right to know law: the minimum reportable concentration in table R in paragraph 3 13 is 1.0%. Toxic substances control act: 40 CFR 7 16. 120 (a).