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管>>氣體快速檢測管>> 119SA甲醇CH3OH氣體檢測管119SA METHYL ALCOHOL(METHANOL) 0.05-6%

            甲醇CH3OH氣體檢測管119SA METHYL ALCOHOL(METHANOL) 0.05-6%

            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)119SA

            品       牌

            廠商性質(zhì)代理商

            所  在  地上海市

            更新時(shí)間:2025-04-21 17:37:27瀏覽次數(shù):1826次

            聯(lián)系我時(shí),請告知來自 化工儀器網(wǎng)
            同類優(yōu)質(zhì)產(chǎn)品更多>
            甲醇CH3OH氣體檢測管119SA METHYL ALCOHOL(METHANOL) 0.05-6.0%,甲醇系結(jié)構(gòu)Z為簡單的飽和一元醇,化學(xué)式CH3OH。又稱“木醇"或“木精"。是無色有酒精氣味易揮發(fā)的液體。有毒,誤飲5~10毫升能雙目失明,大量飲用會(huì)導(dǎo)致死亡。甲醇易燃,其蒸氣與空氣能形成爆炸混合物,甲醇*燃燒生成二氧化碳和水蒸氣,同時(shí)放出熱量。方程式:2CH3OH+3O2=2CO2+4H2O 工業(yè)制法和儲(chǔ)備工業(yè)上用一氧化碳和氫氣的混合氣(合成氣)在一定的條件下制備甲醇

            甲醇CH3OH氣體檢測管119SA METHYL ALCOHOL(METHANOL) 0.05-6.0%

            Tube 19SA

            1. PERFORMANCE
            1) Measuring range :0.05-6.0%
            Number of pump strokes 1(100ml)
            2) Sampling time :1.5 minutes/1 pump stroke
            3) Detectable limit :100 ppm
            4) Shelf life :3 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 :Yellow orange→Pale green
            2. RELATIVE STANDARD DEVIATION
            RSD-low:10% RSD-mid.:5% RSD-high:5%
            3. CHEMICAL REACTION
            Potassium dichromate is reduced
            CH3OH+Cr6++H2SO4→Cr3+
            4. CALIBRATION OF THE TUBE
            GAS CHROMATOGRAPHY
            5. INTERFERENCE AND CROSS SENSITIVITY
            0.05
            0.1
            0.5
            1.0
            2.0
            3.0
            4.0
            5.0
            6.0
            %
            GAS To pump
            DEHUMIDIFIER
            (White)
            119SA
            METHYL ALCOHOL
            (METHANOL)
            Substance Interference ppm Coexistence
            Paraffin (morefi nth haynd Cro3c)arbons FIG.1 Similar stain is produced. Higher readings are given.
            Alcohols FIG.2 〃〃
            Esters 〃50 〃
            Ketones 〃〃
            Aromatic hydrocarbons 〃〃
            Reagent is discoloured to If the top of the discolouration can
            Halogenated hydrocarbons Brown slightly. ibneg so bist aninoet da,fftehcet eadc.curacy of read-
            (NOTE)
            Although the top of light green stain changes to Brown gradually, read the concentration on the top of the light
            green stain shortly.
            0
            5
            6
            3
            4
            Hexane〔%〕?
            FIG.1 Influence of Hexane
            Methanol indicating value 〔%〕
            0.1 0.2 0.3
            2
            1
            0
            5
            6
            3
            4
            Ethanol〔%〕?
            FIG.2 Influence of Ethanol
            Methanol indicating value 〔%〕
            0.1 0.2 0.3 0.4 0.5
            2
            1
            Coexistence
            Interference
            TEMPERATURE CORRECTION TABLE
            Scale True Concentration (%)
            Readings 0℃ 10℃ 20℃ 30℃ 40℃
            (%) (32°F) (50°F) (68°F) (86°F) (104°F)
            6.0 6.0 4.3 3.3
            5.0 5.0 3.7 2.8
            4.0 4.0 3.0 2.3
            3.0 5.1 3.0 2.3 1.8
            2.0 3.0 2.0 1.6 1.2
            1.0 2.7 1.4 1.0 0.8 0.6
            0.5 1.0 0.7 0.5 0.4 0.3
            0.1 0.1 0.1 0.1 0.1 0.1

            會(huì)員登錄

            ×

            請輸入賬號(hào)

            請輸入密碼

            =

            請輸驗(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