From "Metal Injection Molding Process Research Experiments of Tungsten Electrodes - Degreasing And Sintering" to N-Heptane MSDS - Ⅵ
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- Category: Tungsten Information
- Published on Wednesday, 02 September 2015 17:42
- Written by Yahong
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N-heptane, acting a kind of liquid material in degreasing solvent process in "Metal Injection Molding Process Research Experiments of Tungsten Electrodes - Degreasing And Sintering", and the following article will introduce the MSDS (Material Safety Data Sheet)Part 9: Physical And Chemical Properties and Part 10: Stability And Reactivity relevant content, specific see below:
Part 9: Physical and Chemical Properties
The main ingredients: pure
Appearance: colorless, volatile liquid
PH: No data
Melting point: -90.5 ℃
Boiling point: 98.5 ℃
Flash Point: -4 ℃
Ignition temperature: 204 ℃
Critical temperature: 201.7 ℃
Relative density: 0.68 (water = 1)
Relative vapor density: 3.45 (Air = 1)
Vapor pressure: 5.33 kPa (22.3 ℃)
Heat of combustion: 4806.6 kJ / mol
Critical pressure: 1.62 MPa
Logarithm of the octanol / water partition coefficient: No data
Lower explosion limit: 1.1% (V / V)
Upper explosion limit: 6.7% (V / V)
Solubility: insoluble in water, soluble in alcohol, soluble in ether and chloroform.
Main application: as octane measurement standards, solvents, as well as for organic synthesis, for the preparation of laboratory reagents.
Other Properties:
Part 10: Stability And Reactivity
Stability:
Avoid: Strong oxidizing agents
Conditions to avoid: No data
Hazardous Polymerization: No data
Decomposition products: No data
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From "Metal Injection Molding Process Research Experiments of Tungsten Electrodes - Degreasing And Sintering" to N-Heptane MSDS - Ⅴ
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- Category: Tungsten Information
- Published on Wednesday, 02 September 2015 17:41
- Written by Yahong
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N-heptane, a kind of liquid material in degreasing solvent in "Metal Injection Molding Process Research Experiments of Tungsten Electrodes - Degreasing And Sintering", this article introduces the MSDS (Material Safety Data Sheet) Part 8: Exposure Controls / Personal Protection relevant content, specific see below:
Part 8: Exposure Control / Personal Protection
Occupational Exposure Limits
China MAC (mg / m3): Failure to develop standard
Former Soviet Union MAC (mg / m3): 300
TLVTN: OSHA 500ppm, 2050mg / m3; ACGIH 400ppm, 1640mg / m3
TLVWN: ACGIH 500ppm, 2050mg / m3
Monitoring Methods:
Engineering controls: The production process is sealed, and fully ventilated. Provide safety shower and eyewash equipment.
Respiratory protection: When the concentration of n-heptane is higher in air, wearing filtered gas masks (half-mask).
Eye protection: Wear safety glasses.
Physical protection: Wear antistatic uniforms.
Hand protection: Wear rubber gloves.
Other protection: No smoking at scene work. Avoid long-term repeated exposure.
Remarks:
MAC refers to the maximum allowable concentration, which is maximum allowable concentration.
(1) Toxicology MAC︰MAC refers to in the workplace air, a representative sample at any time shall not exceed the concentration measurement. At this concentration, the workers engaged in productive labor for a long-erm, does not cause any occupational acute or chronic hazard.
(2) Life environment MAC: it refers to the toxic substances limits in air, water, soil medium.
Because specific contact conditions and people are different, therefore, even it is an exogenous chemical substance, whose MAC in life and production environment is also different.
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From "Metal Injection Molding Process Research Experiments of Tungsten Electrodes - Degreasing And Sintering" to N-Heptane MSDS - Ⅲ
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- Category: Tungsten Information
- Published on Wednesday, 02 September 2015 17:37
- Written by Yahong
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N-heptane is a liquid material used in degreasing solvent in "Metal Injection Molding Process Research Experiments of Tungsten Electrodes - Degreasing And Sintering", and this article introduces the MSDS(Material Safety Data Sheet) Part 5: Fire-Fighting Measures and Part 6: Leak Emergency Treatment.
Part 5: Fire-Fighting Measures
Hazardous characteristics: (1) When contacts with oxidants, it will cause fire or a chemical reaction. (2) It is flammable, and its vapor and air can form explosive mixtures in case of fire and heat, it will have a hazard of burning and explosion. (3) After high-speed impact, mobile, stirring sparks, it will cause combustion explosion because of electrostatic spark discharge (4) Its vapor is heavier than air, so it will spread to a place where is far away, and whose fire source will fire back.
Hazardous combustion products: carbon monoxide, carbon dioxide.
Fire fighting methods: spray water to cool containers, if possible, move containers from the scene to an empty department. If the containers at the scene has any discoloration or to there is a sound produced from the relief safety devices, you must evacuate immediately. Fire extinguishing agent: There is foam, powder, sand or carbon dioxide. It is invalid to use water to put out the fire.
Part 6: Leak Emergency Treatment:
Emergency Treatment:
A small leak: use activated carbon or other inert material to absorb the leakage. Large Leak: (1) cut off the fire source. (2) Rapid withdrawal personnel from air leakage to a safe area, and isolation and strict restrictions on access. (3) Build a causeway or trenching asylum. (4) Cover with foam, lower vapor disasters. (5) Suggest that the emergency personnel wearing Self positive pressure respirator, and wear anti-static overalls. (6) If possible, cut off the source of leakage. (7) To prevent the leakage from flowing into sewage, drainage ditch and other confined space.
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From "Metal Injection Molding Process Research Experiments of Tungsten Electrodes - Degreasing And Sintering" to N-Heptane MSDS - Ⅳ
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- Category: Tungsten Information
- Published on Wednesday, 02 September 2015 17:39
- Written by Yahong
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N-heptane, as liquid material in degreasing solvent process in "Metal Injection Molding Process Research Experiments of Tungsten Electrodes - Degreasing And Sintering", and this article introduces the MSDS (Material Safety Data Sheet) Part 7: Handling And Storage relevant content.
Part 7: Handling And Storage
Handling Precautions:
(1) The operation should be done in closed and full ventilation space.
(2) The ventilation systems and equipment used is explosion-proof. (3) All relevant operating personnel must be trained specialized knowledge and specific operation, and the operator must abide by the rules strictly.
(4) Propose that operators wearing filter respirators (half-mask), wearing rubber gloves, and safety glasses and anti-static overalls.
(5) Work field requires staying away from fire, heat, and non-smoking.
(6) Avoid contact with oxidizing agents.
(7) When filling, the flow rate should be controlled, and there is a grounding device to prevent electrostatic accumulation.
(8) To prevent vapor leakage into the workplace air.
(9) Equipped with the appropriate variety and quantity of fire equipment and emergency equipment leakage.
(10) Note that handles empty containers which may contain harmful residues.
Storage notes:
(1) Stored in a cool, and ventilated warehouse.
(2) Maintain the sealing of the container.
(3) Keep away from fire and heat.
(4) Storage temperature should not exceed 30 ℃.
(5) Should not stored mixed with the oxidizer.
(6) The explosion-proof lighting, ventilation facilities are needed.
(7) Prohibits the use of mechanical equipment and tools which are easy to produce sparks.
(8) The storage area should be equipped with spill response equipment and suitable host materials.
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From "Metal Injection Molding Process Research Experiments of Tungsten Electrodes - Degreasing And Sintering" to N-Heptane MSDS - Ⅱ
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- Category: Tungsten Information
- Published on Wednesday, 02 September 2015 17:36
- Written by Yahong
- Hits: 234
N-heptane is used as liquid material for degreasing solvent in "Metal Injection Molding Process Research Experiments of Tungsten Electrodes - Degreasing And Sintering", and this article will introduce the MSDS (Material Safety Data Sheet) Part 3: Hazards and the part 4: First Aid Measures.
Part 3: Hazards
Risk category: No data
Pathways: No data
Health hazards: This product has a narcotic effect and irritation.
Acute toxicity: Inhalation of vapors of this product may cause dizziness, nausea, anorexia, euphoria and staggering gait, and even lead to loss of consciousness and stupor. It has slight irritation to the skin.
Chronic effects: Long-term exposure can cause neurasthenia. Few people have a phenomenon of mild neutropenia, and indigestion.
Environmental hazards: No data
Explosion Hazard: This product is flammable, and irritating.
Part 4: First Aid Measures
Skin contact: Remove off the contaminated clothing of the patient; wash his skin thoroughly with water and soap.
Eye contact: Did eyelid, wash with mobile water or saline rinse and consult a doctor.
Inhalation: Rapidly from the scene to fresh air; keep the airway open; if breathing is difficult, give oxygen; if breathing stops, artificial respiration immediately and consult a doctor.
Ingestion: Drink enough water, emetic and to seek medical treatment.
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