狠狠色丁香久久综合婷婷亚洲成人福利在线-欧美日韩在线观看免费-国产99久久久久久免费看-国产欧美在线一区二区三区-欧美精品一区二区三区免费观看-国内精品99亚洲免费高清

            上海境宣實(shí)業(yè)有限公司
            中級(jí)會(huì)員 | 第17年

            17601355022

            當(dāng)前位置:上海境宣實(shí)業(yè)有限公司>>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

            參  考  價(jià)面議
            具體成交價(jià)以合同協(xié)議為準(zhǔn)

            產(chǎn)品型號(hào)224SA

            品       牌

            廠商性質(zhì)代理商

            所  在  地上海市

            更新時(shí)間:2025-04-21 18:35:50瀏覽次數(shù):1558次

            聯(lián)系我時(shí),請(qǐng)告知來自 化工儀器網(wǎng)
            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。

            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

            會(huì)員登錄

            ×

            請(qǐng)輸入賬號(hào)

            請(qǐng)輸入密碼

            =

            請(qǐng)輸驗(yàn)證碼

            收藏該商鋪

            X
            該信息已收藏!
            標(biāo)簽:
            保存成功

            (空格分隔,最多3個(gè),單個(gè)標(biāo)簽最多10個(gè)字符)

            常用:

            提示

            X
            您的留言已提交成功!我們將在第一時(shí)間回復(fù)您~
            撥打電話
            在線留言