Ultra-Pure Helium
WA：+86 132 6275 2056
WEB: std-coatings.com
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
 |
ACE Powder Coating | Introduction CategoryDetails Environmental – Zero VOC emissions– Over 95% overspray recyclability Performance &nda... |
 |
Silver Gray Color Matte Powder Coating | Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com Powder type Epoxy-Polyester, Polyester Applications Exterior Industrial, Specialized Fi... |
 |
Titanium dioxide NTR-606 | Introduction Titanium dioxide NTR-606.Super durablity universal Rutile Ti02Pigment, which is producted by the way of sulphuric acid, and it is sur... |
 |
FBE Powder Coatings | Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com Feature: -Best corrosion resistance which can resist kinds of chemical, industry wastew... |
 |
Polyester/TGIC Powder Coatings | Getaquote whats/app：+86 132 6275 2056 WEB: std-coatings.com Feature: -Good bond ability and good mechanical properties -Good overbaking resist... |
Same products
 |
Casting Grinding Balls | 卖方: 869376 | Casting Grinding Balls , so called as Casting Grinding media balls,casting grinding steel ba... |
 |
Key Quality Factors in Food Contact Paper Production | 卖方: Zhejiang Guanghe New Materials Co., Ltd. | Guanghe supplies food-grade parchment paper for commercial bakeries, food processors, restaurants... |
 |
Heat Sealing Sterilization Pouch | 卖方: Hopeway AMD | Heat Sealing Sterilization Pouch is designed for secure medical instrument packaging, supporting ... |
 |
Catalytic Converter Scrap Supplier, Catalytic Converter Scrap for Sale, , Catalytic Converter Scrap, Catalytic Scrap for Sale, Catalytic Scrap Supplier, Scrap Catalytic Supplier | 卖方: Trucont LLC | Trucont LLC 持续供应催化转化器废料，可立即装运发货。我们为全球各地的回收公司、金属加工商、汽车回收商、废料贸易商和买家提供优质的催化转化器废料。我们的催化转化器废料经过精心收集、分类... |
 |
Epimedium Extract | 卖方: Fruit Powder,Vegetable Powder | Product Name: Epimedium ExtractLatin Name: Epimedium Sagittatum Maxim.Specification: Icariin 5%, ... |
