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乙酸甲酯/醋酸甲酯CH2=CHCO2CH3氣體檢測管211U METHYL ACRYLATE 2-60ppm,丙烯酸甲酯Methyl acrylate,丙烯酸異丁酯CH2=CHCO2CH,別名:敗脂酸甲酯,中文名稱(chēng)乙酸甲酯,別名醋酸甲酯,英文名稱(chēng) methyl acetate;acetic acid methyl ester,分子式 C3H6O2;CH3COOCH3 外觀(guān)與性狀 無(wú)色透明液體,有香味,健康危害:具有麻醉和刺激作用。接觸本品蒸氣引起眼灼痛、流淚、進(jìn)行性呼吸困難、頭痛、頭暈
更新時(shí)間:2024-07-14
在線(xiàn)留言乙酸甲酯/醋酸甲酯CH2=CHCO2CH3氣體檢測管211U METHYL ACRYLATE 2-60ppm
Tube No.211U
1. PERFORMANCE
1) Measuring range :5-60 ppm
Number of pump strokes 2(200ml)
2) Sampling time :3 minutes/2 pump strokes
3) Detectable limit :0.5 ppm
4) Shelf life :2 years
5) Operating temperature :0~40℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 2 pump strokes
8) Colour change :Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:15% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
Chromium oxide is reduced.
CH2=CHCO2CH3+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
5
10
20
40
60
ppm
200ml
GAS To pump
DEHUMIDIFIER
(White)
211U METHYL ACRYLATE
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
60 88 70 60 54 48
40 54 46 40 36 32
20 28 24 20 18 16
10 14 12 10 9 8
5 7 6 5 4 3
Substance Interference Coexistence
Alcohols Similar stain is produced. Higher readings are given.
Paraffin hydrocarbons (more than C3) FIG.2 Whole reagent is changed to dark Brown. 〃
Halogenated hydrocarbons 〃〃
Esters 〃〃
Aromatic hydrocarbons FIG.1 〃〃
0
20
30
10
50
60
40
80
100
90
70
Toluene〔ppm〕?
FIG.1 Influence of Toluene
Methyl acrylate
indicating value 〔ppm〕
10 20 30 40 50 0
20
30
10
50
60
40
80
100
90
70
Hexane〔ppm〕?
FIG. 2 Influence of Hexane
上一篇:111SA醋酸甲酯CH3CO2CH3氣體檢測管111SA METHYL ACETATE 0.1-3.0%
下一篇:119LPG甲醇石油氣119LPG METHANOL IN LP GAS 氣體檢測管100-1000ppmv
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