| Product Identification | Back to Contents | 【Product Name】
Narcylen | 【Synonyms】
Acetylene (liquefied)
Ethine
Ethyne
Narcylen | 【CAS】
74-86-2 | 【Formula】
C2H2 | 【Molecular Weight】
26.04 | 【EINECS】
200-816-9 | 【RTECS】
AO9600000 | 【RTECS Class】
Human Data | 【Merck】
12,91 | 【Beilstein/Gmelin】
906677 | 【Beilstein Reference】
4-01-00-00939 | 【EC Index Number】
601-015-00-0 | 【EC Class】
Heating may cause an explosion; Explosive with or without contact with air; Extremely flammable |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
A colorless gas with a faint garlic-like odor. | 【Solubility in water】
16.6 g/L (20 C) | 【Melting Point】
-81 | 【Boiling Point】
-75 | 【Vapor Pressure】
69700 (25 C) | 【Density】
0.618 g/cm3 (-55 C) | 【pKa/pKb】
25(at 25℃) (pKa) | 【Partition Coefficient】
.37 | 【Heat Of Vaporization】
21.2 kJ/mol | 【Heat Of Combustion】
-1301 kJ/mol | 【Usage】
Illuminant, oxyacetylene welding, cutting and soldering metals, signalling, precipitating metals, manufacture of acetaldehyde, acetic acid, fuel for motor boats. | 【Odor threshold】
620 ug/L | 【Refractive Index】
1.00087 (0 C) |
| First Aid Measures | Back to Contents | 【Ingestion】
Seek medical assistance. | 【Inhalation】
Administer 100% humidified supplemental oxygen with assisted ventilation as required. If hypoxia has been severe or prolonged, carefully evaluate for neurologic sequelae and provide supportive treatment as indicated. | 【Skin】
Rewarming and a variety of topical treatments are indicated for frostbite injury. See main section for more information. | 【Eyes】
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility. |
| Handling and Storage | Back to Contents | 【Storage】
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage. | 【Handling】
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood. |
| Hazards Identification | Back to Contents | 【Inhalation】
Hyperventilation may develop. Vapors may cause dizziness or asphyxiation without warning. May be toxic if inhaled at high concentrations. | 【Skin】
Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. | 【Eyes】
Decreases in night vision, visual acuity, and visual fields (tunnel vision) may occur. Frothy mucous may be seen. | 【Ingestion】
Not expected to be a route of entry. | 【Hazards】
Vapors from liquefied gas are initially heavier than air and spread along ground. Vapors may travel to source of ignition and flash back. Containers may explode when heated. | 【UN (DOT)】
1001 |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal Protection】
Wear appropriate protective gloves, clothing and goggles. Always wear thermal protective clothing when handling refrigerated/cryogenic liquids. | 【Respirators】
Respiratory protective equipment is not normally required but self-contained type should be available for emergency and rescue use. | 【Exposure Effects】
Rapid breathing and rapid heart rate are common. In severe cases abnormally low blood pressure, apnea, and cardiac arrest develop. Various disturbances including headache, dizziness, mood disturbances, numbness of the extremities, sleepiness, mental confusion, poor judgement and coordination, and memory loss may occur. Prolonged or severe hypoxia results in unconsciousness. Prolonged asphyxia may produce CNS injury. Hemiparesis has been reported with volatile substance abuse. Cerebral edema with brainstem herniation may occur. Seizures have been reported following intentional inhalation. | 【Exposure limit(s)】
NIOSH REL: C 2500 ppm (2662 mg/m3) | 【Poison Class】
- |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
-118 | 【Autoignition】
305 | 【Fire Fighting】
Extinguish fire with flooding quantities of water or use dry chemical or carbon dioxide. | 【Upper exp. limit】
80 | 【Lower exp. limit】
2.5 | 【Fire Potential】
EXTREMELY FLAMMABLE. Will be easily ignited by heat, sparks or flames. Will form explosive mixtures with air. May ignite spontaneously in air. |
| Accidental Release Measures | Back to Contents | 【Small spills/leaks】
Make no contact with the spilled material. ELIMINATE all ignition sources, combustibles and ground all equipment. Stop leak if you can do it without risk. Do not direct water at spill or source of leak. If possible, turn leaking containers so that gas escapes rather than liquid. Isolate area until gas has dispersed. |
| Stability and Reactivity | Back to Contents | 【Stability】
High in closed containers. Highly reactive; all mixtures of C2H2 (water saturated) in air can be exploded at pressures above 2 atmospheres. | 【Incompatibilities】
Reacts with alkali metals, forming Hydrogen gas Can react explosively with bromine Reacts with silver, copper and lead to form sensitive, explosive salts. | 【Decomposition】
The gas mixes well with air, explosive mixtures are easily formed. The substance may polymerize due to heating. Decomposes on heating and increasing pressure , causing fire and explosion hazard. | 【Combustion Products】
Fire may produce irritating and/or toxic gases. |
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| Company Name: |
Spectrum Chemical Manufacturing Corp. |
| Tel: |
021-021-021-67601398-809-809-809 15221380277 |
| Fax: |
021-57711696 |
| WebSite: |
www.spectrumchemical.com/oa_html/index.jsp?minisite=10020&respid=22372&language=us |
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