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首頁(yè)>產(chǎn)品中心>日本光明北川式氣體檢測管>氣體快速檢測管>119SA甲醇CH3OH氣體檢測管119SA METHYL ALCOHOL(METHANOL) 0.05-6%

甲醇CH3OH氣體檢測管119SA METHYL ALCOHOL(METHANOL) 0.05-6%

簡(jiǎn)要描述:

甲醇CH3OH氣體檢測管119SA METHYL ALCOHOL(METHANOL) 0.05-6.0%,甲醇系結構Z為簡(jiǎn)單的飽和一元醇,化學(xué)式CH3OH。又稱(chēng)“木醇"或“木精"。是無(wú)色有酒精氣味易揮發(fā)的液體。有毒,誤飲5~10毫升能雙目失明,大量飲用會(huì )導致死亡。甲醇易燃,其蒸氣與空氣能形成爆炸混合物,甲醇*燃燒生成二氧化碳和水蒸氣,同時(shí)放出熱量。方程式:2CH3OH+3O2=2CO2+4H2O 工業(yè)制法和儲備工業(yè)上用一氧化碳和氫氣的混合氣(合成氣)在一定的條件下制備甲醇

更新時(shí)間:2024-07-14

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甲醇CH3OH氣體檢測管119SA METHYL ALCOHOL(METHANOL) 0.05-6%

甲醇CH3OH氣體檢測管119SA METHYL ALCOHOL(METHANOL) 0.05-6.0%

Tube 19SA

1. PERFORMANCE
1) Measuring range :0.05-6.0%
Number of pump strokes 1(100ml)
2) Sampling time :1.5 minutes/1 pump stroke
3) Detectable limit :100 ppm
4) Shelf life :3 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 1 pump stroke
8) Colour change :Yellow orange→Pale green
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:5% RSD-high:5%
3. CHEMICAL REACTION
Potassium dichromate is reduced
CH3OH+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
0.05
0.1
0.5
1.0
2.0
3.0
4.0
5.0
6.0
%
GAS To pump
DEHUMIDIFIER
(White)
119SA
METHYL ALCOHOL
(METHANOL)
Substance Interference ppm Coexistence
Paraffin (morefi nth haynd Cro3c)arbons FIG.1 Similar stain is produced. Higher readings are given.
Alcohols FIG.2 〃〃
Esters 〃50 〃
Ketones 〃〃
Aromatic hydrocarbons 〃〃
Reagent is discoloured to If the top of the discolouration can
Halogenated hydrocarbons Brown slightly. ibneg so bist aninoet da,fftehcet eadc.curacy of read-
(NOTE)
Although the top of light green stain changes to Brown gradually, read the concentration on the top of the light
green stain shortly.
0
5
6
3
4
Hexane〔%〕?
FIG.1 Influence of Hexane
Methanol indicating value 〔%〕
0.1 0.2 0.3
2
1
0
5
6
3
4
Ethanol〔%〕?
FIG.2 Influence of Ethanol
Methanol indicating value 〔%〕
0.1 0.2 0.3 0.4 0.5
2
1
Coexistence
Interference
TEMPERATURE CORRECTION TABLE
Scale True Concentration (%)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(%) (32°F) (50°F) (68°F) (86°F) (104°F)
6.0 6.0 4.3 3.3
5.0 5.0 3.7 2.8
4.0 4.0 3.0 2.3
3.0 5.1 3.0 2.3 1.8
2.0 3.0 2.0 1.6 1.2
1.0 2.7 1.4 1.0 0.8 0.6
0.5 1.0 0.7 0.5 0.4 0.3
0.1 0.1 0.1 0.1 0.1 0.1

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