【正文】 ........................................................................................................ 1 第 1 章 甘油醚簡(jiǎn)介 .............................................................................................. 2 表示方法 ............................................................................... 2 功能及用處 ............................................................................ 2 第二章 羥值測(cè)定 ..................................................................................................... 3 方法提要 ................................................................................ 3 儀器及試劑 ............................................................................ 3 步驟及原理 ........................................................................... 4 注意事項(xiàng) ................................................................................ 4 第三章 氫氧化鈉標(biāo)準(zhǔn)滴定溶液的配制、標(biāo)定和儲(chǔ)存 ....................................... 5 3． 1 飽和氫氧化鈉溶液配制 ..................................................... 5 3． 2 各濃度氫氧化鈉標(biāo)準(zhǔn)滴定溶液的配制 ................................... 5 3． 3 標(biāo)定 ................................................................................... 5 3． 4 計(jì)算 .................................................................................... 6 3． 5 精密度 ............................................................................. 6 3． 6 穩(wěn)定性 .............................................................................. 6 第四章 酚酞 ..................................................................................... 7 酚酞 ....................................................................................... 7 主要用途 ............................................................................... 8 ． 在不同條件下的顏色 ............................................................ 9 注意事項(xiàng)： ........................................................................... 9 第五章 PH 電機(jī) ....................................................................................................... 9 特點(diǎn) ....................................................................................... 9 規(guī)格 ..................................