Ultra-Pure Helium
Product Details
Product Names
Ultra-Pure Helium
Purity
Ultra-Pure Helium: ≥99.9999%
High-Purity Helium: ≥99.999%
Impurity Content (ppm)
| Impurity | Ultra-Pure Helium | High-Purity Helium |
|---|---|---|
| Water (H₂O) | ≤0.5 | ≤3 |
| Oxygen (O₂+Ar) | ≤0.1 | ≤1 |
| Nitrogen (N₂) | ≤0.5 | ≤2 |
| Carbon Monoxide (CO) | ≤0.1 | ≤0.5 |
| Carbon Dioxide (CO₂) | ≤0.1 | ≤0.5 |
| Hydrocarbons (THC) | ≤0.1 | ≤0.5 |
Packaging
Filled in steel cylinders of 40L, 49L, 50L, and also available in smaller cylinders of 8-10L upon customer request.
Applications
Helium is widely used in military, scientific research, petrochemical, refrigeration, medical, semiconductor, pipeline leak detection, superconductivity experiments, metal manufacturing, deep-sea diving, precision welding, and optoelectronic product manufacturing.
Safety Information
CAS Number: 7440-59-7.
Physical and Chemical Properties: Colorless and odorless inert gas. Insoluble in water and ethanol. Melting point (℃): -272.1; Boiling point (℃): -268.9; Relative density (water=1): 0.15 (-271℃); Relative density (air=1): 0.14; Saturation vapor pressure (kPa): 202.64 (-268℃); Flash point (℃): Not applicable; Combustion heat (kJ/mol): Not applicable; Critical temperature (℃): -267.9; Critical pressure (MPa): 2.3; Upper explosion limit (v%): Not applicable; Lower explosion limit (v%): Not applicable; Ignition temperature (℃): Not applicable.
Combustion and Explosion Hazards: Non-flammable. Under high heat, the pressure inside the container may increase, posing a risk of rupture and explosion.
Firefighting Methods: Non-flammable. Remove containers from the fire area if possible. Spray water to keep the containers cool until the fire is out. Evacuate people to the upwind side and isolate the contaminated area. Emergency personnel should wear self-contained positive pressure breathing apparatus and general work clothes. Cut off the leak source if possible. Ensure adequate ventilation to disperse the gas. Handle the leaking container properly, repair and inspect before reuse.
Health Hazards: Inert gas, high concentrations can reduce oxygen partial pressure and pose a risk of asphyxiation. Symptoms include increased breathing rate, lack of concentration, ataxia, followed by fatigue, restlessness, nausea, vomiting, coma, convulsions, and potentially death.
First Aid Measures: Inhalation: Quickly move to a fresh air area. Keep the airway clear. If breathing is difficult, administer oxygen. If breathing stops, perform artificial respiration immediately. If breathing and heartbeat stop, perform artificial respiration and external chest compressions immediately.
在线联系供应商
Other supplier products
 |
High-Purity Hydrogen (H₂) | Introduction High-purity hydrogen (H₂), typically defined as hydrogen with a purity level of 99.999% or higher, is a critical resource in various ... |
 |
Medical Powder Coating | Introduction We are a Chinese factory with over 20 years of export experience, supplying premium coatings to hospitals, medical equipment manufact... |
 |
Gasoline hydrogenation inhibitor STD-18 | Gasoline hydrogenation inhibitor STD-18 has the functions of anti-oxidation, anti-polymerization, cleaning and dispersing, and can effectively inhi... |
 |
Anti-Slip / Non-Skid Powder Coatings | Anti-slip powder coatings are specially formulated textured coatings designed to increase surface friction and prevent slipping. They are ideal for... |
 |
Dark Gray Powder Coating | Product Description Description Powder coating Another Name Powder paint,Electrostatic powder coating, thermosetting powder coating ... |
Same products
 |
Easy-cleaning Silicone-Modified Waterborne UV Resin | 卖方: Guangzhou Human New Material Science and Technology Co., Ltd | LUV533 is a high-performance, silicone-modified hexafunctional waterborne UV resinengineered to d... |
 |
Water-based Soft-Touch Resin for Consumer Electronics | 卖方: Guangzhou Human New Material Science and Technology Co., Ltd | Water-based Soft-Touch Resinis an advanced coating material formulated to deliver a luxurious, ve... |
 |
Conformal Coatings | 卖方: Guangzhou Human New Material Science and Technology Co., Ltd | The conformal coatingsprovide good adhesion to metal, PCB and other substrates after curing at ro... |
 |
Metalized & Laser Transfer coating | 卖方: Guangzhou Human New Material Science and Technology Co., Ltd | Metallized and laser transfer coatingsare designed with sustainability in mind, ensuring minimal ... |
 |
Hydrophilic coatings for Air Conditioner | 卖方: Guangzhou Human New Material Science and Technology Co., Ltd | A water-based coating combination applied on the surface of aluminum foil, which forms a layer wi... |
