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首页>产品中心>日本光明北川式气体检测管>气体快速检测管>113SA正己烷CH3(CH2)4CH3气体检测管113SA n-HEXANE 0.05-1.32%

正己烷CH3(CH2)4CH3气体检测管113SA n-HEXANE 0.05-1.32%

简要描述:

正己烷CH3(CH2)4CH3气体检测管113SA n-HEXANE 0.05-1.32%,不溶于水,可与乙醚、氯仿混溶,溶于丙酮,在乙醇中的溶解度为100份乙醇溶解50份正己烷(33摄氏度)。用作溶剂,特别适用于萃取植物油。可由石油馏分中分出。极易挥发着火。危险标记 7(低闪点易燃液体) 主要用途 用于有机合成,用作溶剂、化学试剂、涂料稀释剂、聚合反应的介质等

更新时间:2017-07-15

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正己烷CH3(CH2)4CH3气体检测管113SA n-HEXANE 0.05-1.32%

正己烷CH3(CH2)4CH3气体检测管113SA n-HEXANE 0.05-1.32%

Tube No.113SA
1. PERFORMANCE
1) Measuring range :0.1-1.32% 0.05-0.6%
Number of pump strokes 1/2(50ml) 1(100ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :50 ppm
4) Shelf life :3 years
5) Operating temperature :10~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :Orange→Dark green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH3(CH2)4CH3+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
0.6
0.5
0.4
0.3
0.2
0.1
0.05
%
􀀀􀀀
􀀀􀀀
113SA n-HEXANE
Substance Interference ppm Coexistence
Paraffin hydrocarbons Similar stain is produced. Higher readings are given.
Acetylene 〃〃
Ethylene 〃〃
Cyclohexane 〃〃
Benzene FIG.1 Black stain is produced. 400 〃
Toluene FIG.2 〃800 〃
Xylene 〃2,000 〃
In presence of Alcohols, Ketones or Esters less than 6%, the accuracy of readings is not affected.
0
0.1
0.2
0.3
0.4
Benzene〔ppm〕�
FIG.1 Influence of Benzene
n-Hexane indicating value 〔%〕
500 0
0.1
0.2
0.3
0.4
Toluene〔ppm〕�
FIG.2 Influence of Toluene
n-Hexane indicating value 〔%〕 1000 500
TEMPERATURE CORRECTION TABLE
Scale True Concentration (%)
Readings 10℃ 15℃ 20℃ 30℃ 40℃
(%) (50°F) (59°F) (68°F) (86°F) (104°F)
0.6 0.78 0.67 0.60 0.53 0.49
0.5 0.62 0.54 0.50 0.45 0.41
0.4 0.48 0.43 0.40 0.36 0.34
0.3 0.34 0.32 0.30 0.28 0.26
0.2 0.22 0.21 0.20 0.19 0.18
0.1 0.10 0.10 0.10 0.10 0.10
(NOTE)
In case of 1 / 2 strokes, following formula is available for the actual concentration.
Actual concentration=2.2×Tmperature corrected value

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