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                    1. 韩国三级大全久久网站_色噜噜一区二区三区_高清欧美性猛交xxxx黑人猛_激情五月开心婷婷_来一水AV@lysav

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                      首頁(yè)>產(chǎn)品中心>日本光明北川式氣體檢測(cè)管>氣體快速檢測(cè)管>224SA單乙醇胺H2NCH2CH2OH氣體檢測(cè)管224SA MONOETHANOL AMINE 0.5-50

                      單乙醇胺H2NCH2CH2OH氣體檢測(cè)管224SA MONOETHANOL AMINE 0.5-50

                      簡(jiǎn)要描述:

                      單乙醇胺H2NCH2CH2OH氣體檢測(cè)管224SA MONOETHANOL AMINE 0.5-50ppm,異名 Monoethanolamine;Ethanolamine;colamine;ethylolamine CAS 41-43-5,單乙醇胺是有刺激性和腐蝕性;雖然有報(bào)道本品具有致敏反應(yīng),但當(dāng)將它用于中性注射劑和局部用制劑時(shí),通常沒(méi)有不良反應(yīng)。一般而論,單乙醇胺鹽的毒性要小于單乙醇胺。

                      更新時(shí)間:2024-12-26

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                      單乙醇胺H2NCH2CH2OH氣體檢測(cè)管224SA MONOETHANOL AMINE 0.5-50

                      單乙醇胺H2NCH2CH2OH氣體檢測(cè)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

                      韩国三级大全久久网站_色噜噜一区二区三区_高清欧美性猛交xxxx黑人猛_激情五月开心婷婷_来一水AV@lysav
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