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呋喃C4H4O氣體檢測管122SA FURAN 0.01-2.0%,健康危害:本品有麻醉和弱刺激作用。吸入后可引起頭痛、頭暈、惡心、嘔吐、血壓下降、呼吸衰竭。慢性影響:肝、腎損害。呋喃環(huán)具芳環(huán)性質(zhì),可發(fā)生鹵化、硝化、磺化等親電取代反應(yīng)。遇強酸易開環(huán)成聚合物,因而須用特殊試劑進行硝化或磺化反應(yīng)。催化氫化生成四氫呋喃,后者為重要的溶劑。
更新時間:2024-12-18
在線留言呋喃C4H4O氣體檢測管122SA FURAN 0.01-2.0%
Tube 22SA
1. PERFORMANCE
1) Measuring range :0.2-2.0% 0.01-0.9%
Number of pump strokes 1/2(50ml) 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :10 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Reading :Graduations printed on the tube are calibrated by Ethylene oxide at 1 pump stroke
and Furan concentration is determined by using a conversion chart.
7) Colour change :Orange→Black
2. RELATIVE STANDARD DEVIATION
RSD-low:15% RSD-mid.:10% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
O +Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
1.6
1.0
1.2
1.4
1.8
0.8
0.6
0.4
0.2
0.1
0.01
%
(White)
DEHUMIDIFIER
122SA C FURAN
Substance Interference ppm Coexistence
Aromatic hydrocarbons FIG.1 Similar stain is produced. Higher readings are given.
Esters FIG.2 〃〃
Ketones 〃
Alcohols FIG.3 〃〃
Halogenated hydrocarbons Whole reagent is changed to 0.5% 〃
Pale brown.
0
1.0
0.5
Toluene〔%〕?
FIG.1 Influence of Toluene
22SA Tube reading (%)?
Furan(%)?
Furan indicating value 〔%〕
0.25 0.5
Interference
0
1.0
0.5
Ethyl acetate〔%〕?
FIG.2 Influence of Ethyl acetate
Furan indicating value 〔%〕
1 2 0
2
1
Menthanol〔%〕?
FIG.3 Influence of Menthanol
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