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苯酚C6H5OH氣體檢測管183U PHENOL 0.5-25.0ppm，苯酚（C6H6O，PhOH），又名石炭酸、羥基苯，是Z簡單的酚類有機(jī)物，一種弱酸。常溫下為一種無色晶體。有毒。有腐蝕性，常溫下微溶于水。人口服致死量報(bào)道不一,LD為2～15g,或MLD為140mg/kg,14g/kg。國外報(bào)道酚液污染皮膚面積為25%,10分鐘死亡,血酚為0.74mmlo/L。低濃度酚能使蛋白變性,高濃度能使蛋白沉淀。對(duì)皮膚、粘膜有強(qiáng)烈的腐蝕作用,也可抑制中樞神經(jīng)系統(tǒng)或損害肝、腎功。
更新時(shí)間：2025-01-15
在線留言
苯酚C6H5OH氣體檢測管183U PHENOL 0.5-25.0ppm
1. PERFORMANCE
1） Measuring range ：0.5-25.0 ppm
Number of pump strokes 2（200ml）
2） Sampling time ：3 minutes/2 pump strokes
3） Detectable limit ：0.3 ppm
4） Shelf life ：2 years
5） Operating temperature ：10～40℃
6） Temperature compensation ：Necessary（See "TEMPERATURE CORRECTION TABLE"）
7） Reading ：Direct reading from the scale calibrated by 2 pump strokes
8） Colour change ：Pale yellow→Pale brown
2. RELATIVE STANDARD DEVIATION
RSD-low：10％ RSD-mid.：5％ RSD-high：5％
3. CHEMICAL REACTION
Cresol is oxidized and the polymer is produced.
CH3C6H4OH＋Ce4＋→CH3C6H4O→（CH3C6H4O）n
4. CALIBRATION OF THE TUBE
ABSORPTIOMETRIC METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
25.0
20.0
15.0
10.0
5.0
3.0
1.0
0.5
ppm
????
????
Tube No.
183U CRESOL
88
Substance Interference ppm Coexistence
Phenols FIG.1 Similar stain is produced. 2.5 Higher readings are given.
Ammonia White stain is produced. 200 Discolouration of gas inlet side is
FIG.2 faded and higher reading are given.
Aliphatic amines 〃50 〃
Two layers discolouration of Pale
Aromatic amines Blue stain is produced. 50 brown and blue are produced and
higher reading are given.
（NOTE）
This tube scale is calibrated based on Phenol and the same scale is available for Cresol.
0
5
15
10
Phenol〔ppm〕?
FIG.1 Influence of Phenol
Cresol indicating value 〔ppm〕
5 0
5
15
10
Ammonia〔ppm〕?
FIG.2 Influence of Ammonia
Cresol indicating value 〔ppm〕
100 200
TEMPERATURE CORRECTION TABLE
Scale True Concentration （ppm）
Readings 10℃ 15℃ 20℃ 30℃ 40℃
（ppm） （50°F） （59°F） （68°F） （95°F） （104°F）
25.0 31.2 27.8 25.0 21.8 18.8
20.0 24.5 22.3 20.0 17.5 15.0
15.0 18.4 16.7 15.0 13.1 11.3
10.0 12.3 11.1 10.0 8.8 7.5
5.0 6.1 5.6 5.0 4.4 3.8
3.0 3.7 3.3 3.0 2.6 2.3
1.0 1.2 1.1 1.0 0.9 0.8
0.5 0.5 0.5 0.5 0.5 0.5
上一篇：105SD戊胺CH3（CH2）3CH2NH2氣體檢測管105SD PENTYL AMINE 2-22ppm
下一篇：146S光氣COCl2氣體檢測管146S PHOSGENE 0.1-20ppm
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