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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>224SA单乙醇胺H2NCH2CH2OH气体检测管224SA MONOETHANOL AMINE 0.5-50

单乙醇胺H2NCH2CH2OH气体检测管224SA MONOETHANOL AMINE 0.5-50

简要描述:

单乙醇胺H2NCH2CH2OH气体检测管224SA MONOETHANOL AMINE 0.5-50ppm,异名 Monoethanolamine;Ethanolamine;colamine;ethylolamine CAS NO.141-43-5,单乙醇胺是有刺激性和腐蚀性;虽然有报道本品具有致敏反应,但当将它用于中性注射剂和局部用制剂时,通常没有不良反应。一般而论,单乙醇胺盐的毒性要小于单乙醇胺。

更新时间:2017-07-24

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单乙醇胺H2NCH2CH2OH气体检测管224SA MONOETHANOL AMINE 0.5-50

单乙醇胺H2NCH2CH2OH气体检测管224SA MONOETHANOL AMINE 0.5-50ppm

Tube No.224SA

1. PERFORMANCE
1) Measuring range :1-50 ppm 0.5-25 ppm
Number of pump strokes 1(100ml) 2(200ml)
2) Sampling time :1 minute/1 pump stroke
3) Detectable limit :0.2 ppm(200ml)
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 1 pump stroke
8) Colour change :Pink→Pale purple
2. RELATIVE STANDARD DEVIATION
3. CHEMICAL REACTION
By reacting with Sulphuric acid, PH indicator is discoloured.
H2NCH2CH2OH+H2SO4→(HOC2N5NH3)2SO4
4. CALIBRATION OF THE TUBE
COLOURIMETRY METHOD
5. INTERFERENCE AND CROSS SENSITIVITY
1
3
5
10
15
20
25
30
40
50
ppm
GAS To pump
224SA MONOETHANOL AMINE
Substance Interference Coexistence
Other amines Brownish yellow stain is produced. Double-stain layer(Brownish yellow
FIG.1 and Pale purple)is produced.
ammonia Similar stain is produced. Double-stain layer(Yellow and Pale
FIG.2 purple)is produced.
Hydrazine 〃〃
(ACtmOo2s+phHe2rOic) air 〃
0
40
20
Methyl amine〔ppm〕�
FIG.1 Influence of Methyl amine
Monoethanol amine
indicating value 〔ppm〕
20 40
Coexistence
Interference
0
40
20
Ammonia〔ppm〕�
FIG.2 Influence of Ammonia
Monoethanol amine
indicating value 〔ppm〕
5 10
Coexistence
Interference
(NOTE)
1)In case of 2 pump strokes, following formula is available for the actual concentration.
Actual concentration=1/2×Temperature corrected value
2)In any case, Pale purple stain only is indicated concentration of Monoethanal amine. Other discolourations
may be disregarded.
TEMPERATURE CORRECTION TABLE
Scale True Concentration (ppm)
Readings 0℃ 10℃ 20℃ 30℃ 40℃
(ppm) (32°F) (50°F) (68°F) (86°F) (104°F)
50 - - 50 35 29
40 - 65 40 30 25
30 - 49 30 23 20
25 - 39 25 20 17
20 65 30 20 16 14
15 45 22 15 12 10
10 29 14 10 8 7
5 12 7 5 4 3
3 6 4 3 3 2
1 1 1 1 1 1

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