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上海境宣實業有限公司
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2-異丙氧基乙醇檢測管(CH3)2HCO(CH2)2COH 5-350ppm

參  考  價面議
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產品型號190U

品       牌

廠商性質代理商

所  在  地上海市

更新時間:2024-11-20 13:17:16瀏覽次數:829次

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乙二醇乙醚(乙基溶纖劑)中文名稱:二乙二醇乙醚;二甘醇二乙醚;二乙基卡必醇,二甘醇乙醚,二乙二醇一乙醚,乙氧基二乙二醇醚,二乙二醇獨乙醚,一縮二乙二醇單乙醚,二甘醇一乙醚,二乙二醇乙醚,二甘醇單乙醚,卡必醇,(CH3)2HCO(CH2)2COH 無色;吸水性穩定的液體,可燃。有中等程度令人愉快的氣味,微粘。2-異丙氧基乙醇,乙二醇單異丙基醚,乙二醇異丙基醚,2-異丙氧基乙醇; 乙二醇單異丙基醚; β-羥乙基異丙基醚;

ETHYL CELLOSOLVE (CH3)2HCO(CH2)2COH 5-350ppm

Tube 90U
0
30
40
50
20
10
Ethanol〔ppm〕?
FIG.1 Influence of Ethanol
Ethyl cellosolve indicating value 〔ppm〕
100 200 300 400 500
(300ml)? (100ml)?
0
300
400
500
200
100
1,1,1-Trichloroethane〔ppm〕?
FIG.2 Influence of 1,1,1-Trichloroethane
Ethyl cellosolve indicating value 〔ppm〕
100 200 300 400 500 600
(300mR)?
1. PERFORMANCE
1) Measuring range :5-500 ppm
Number of pump strokes 3(300ml)
2) Sampling time :4.5 minutes/3 pump strokes
3) Detectable limit :2 ppm
4) Shelf life :2 years
5) Operating temperature :10~35℃
6) Temperature compensation :Necessary(See "TEMPERATURE CORRECTION TABLE")
7) Reading :Direct reading from the scale calibrated by 3 pump strokes
8) Colour change :Yellow→Pale blue
2. RELATIVE STANDARD DEVIATION
RSD-low:10% RSD-mid.:10% RSD-high:10%
3. CHEMICAL REACTION
Chromium oxide is reduced.
C2H5OCH2CH2OH+Cr6++H2SO4→Cr3+
4. CALIBRATION OF THE TUBE
GAS CHROMATOGRAPHY
5. INTERFERENCE AND CROSS SENSITIVITY
GAS To pump
500
400
500
200
150
100
50
20
5
300ml
ppm
(White)
DEHUMIDIFIER
?? ?? ??
190U ETHYL CELLOSOLVE
Substance Interference Coexistence
Alcohols FIG.1 Similar stain is produced. Higher readings are given.
Ethers 〃〃
(Pmaroarfefi nth haynd Cro3c)arbons Whole reagent is changed to Brown. 〃
Aromatic hydrocarbons 〃〃
Esters 〃〃
Ketones 〃〃
Halogenated hydrocarbons FIG.2 〃〃
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 10℃ 15℃ 20℃ 25℃ 30℃ 35℃
(ppm) (50°F) (59°F) (68°F) (77°F) (80°F) (95°F)
500 800 620 500 410 335 265
400 620 490 400 325 260 200
300 450 365 300 245 195 145
200 290 245 200 160 125 95
150 215 185 150 120 90 70
100 145 125 100 80 60 45
50 75 65 50 40 30 25
20 30 25 20 15 12 10
5 10 7 5 4 3 2

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