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JW-ZQ-V corrosion-resistant steam adsorption instrument
Product Overview: Steam Generator 1 Steam Adsorption Test Position (1/0.1Torr) Micro Pore Adsorption Test Position (1/0.1Torr) Cold Trap 0-50 ° C Cons
Product details
Product Overview
| steam generator | 1 piece |
| Steam adsorption test position (1/0.1 Torr) | |
| Microporous adsorption test site (1/0.1 Torr) | |
| Cold trap | |
| 0-50 ° C constant temperature water bath | |
| 1L liquid nitrogen cup | |
| 3L liquid nitrogen cup |
Product Features
| Equipped with a steam generator as the source of adsorption gas |
| Stainless steel module for external air chamber, equipped with a constant temperature box (room temperature -50 ° C) |
| Steam adsorption system, passing through a cold trap during vacuum pumping |
| The sealing element adopts a fully fluorinated O-ring |
PRODUCT FUNCTION
| Low temperature nitrogen adsorption method, specific surface area and pore size distribution testing |
| Adsorption isotherm testing of various gases and vapors |
| Equivalent adsorption heat determination |
| Determination of gas selective adsorption coefficient |
method comparison
| Comparison content | Volumetric method | gravimetric method |
|---|---|---|
| First-principles methods | Capacity method, pressure sensor gas equation calculation | The weight method and ultra-high precision balance allow for direct reading, making it intuitive |
| Sample testing system | Small size, compact structure, easy to maintain constant temperature, and not prone to corrosion | Large volume, poor temperature uniformity, and easy corrosion of the balance |
| function | When the pressure is P/P0<0.1, there are multiple adsorption curves; Use small amounts of steam in microliters; The test is not affected by airflow and the data is stable; Capable of BET and pore size testing; |
P/P0<0.1 cannot be tested; At least one hundred milliliters of gas is required; The balance is easily affected by airflow, resulting in data fluctuations; This function is not available; |
| pretreatment | Can be pre processed in situ | Cannot perform in-situ preprocessing |
| efficiency | Fast testing speed Multiple testing pressure points |
Slow testing speed Less testing pressure points |
| environmental condition | demand moderately | Very sensitive to small vibrations in the environment |
| steam consumption | Very low consumption | High consumption |
| price | Simple structure and low cost | Complex structure and high cost |
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