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- 电(Dian)话(Hua)/传(Chuan)真(Zhen):(?)0710-5231641
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13377973557((?)周(Zhou))(?) - 15997251688((?)王(Wang))(?)
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- 联(Lian)系(Xi)地(Di)址(Zhi):(?)湖(Hu)北(Bei)省(Sheng)襄(Xiang)阳(Yang)市(Shi)南(Nan)漳(Zhang)县(Xian)城(Cheng)南(Nan)路(Lu)132号(Hao)
五(Wu)氧(Yang)化(Hua)二(?)磷(Lin)试(Shi)剂(Ji)配(Pei)制(Zhi)方(Fang)法(Fa)是(Shi)怎(Zen)样(Yang)的(De)呢(Ne)?(?)襄(Xiang)阳(Yang)五(Wu)氧(Yang)化(Hua)二(?)磷(Lin)批(Pi)发(Fa),襄(Xiang)阳(Yang)五(Wu)氧(Yang)化(Hua)二(?)磷(Lin)厂(Chang)家(Jia)整(Zheng)理(Li)了(Liao)部(Bu)分(Fen)相(Xiang)关(Guan)内(Nei)容(Rong)一(Yi)起(Qi)来(Lai)看(Kan)看(Kan)吧(Ba):(?)
铝(Lu)酸(Suan)较(Jiao)溶(Rong)液(Ye),(?)将(Jiang)A液(Ye)(70g铝(Lu)酸(Suan)鞍(An)溶(Rong)于(Yu)53mL氨(An)水(Shui)和(He)267mL水(Shui)中(Zhong)制(Zhi)成(Cheng))慢(Man)慢(Man)地(Di)倾(Qing)入(Ru)B液(Ye)(267mL硝(Xiao)酸(Suan)与(Yu)400mL水(Shui)混(Hun)匀(Yun)而(?)成(Cheng))中(Zhong),(?)冷(Leng)却(Que)。(?)
氢(Qing)氧(Yang)化(Hua)钠(Na)标(Biao)准(Zhun)溶(Rong)液(Ye)·(?)c(NaOH)=0.lmol/L,称(Cheng)取(Qu)4g氢(Qing)氧(Yang)化(Hua)钠(Na)(优(You)级(Ji)纯(Chun))溶(Rong)于(Yu)煮(Zhu)沸(Fei)并(Bing)冷(Leng)却(Que)的(De)水(Shui)中(Zhong),(?)以(Yi)水(Shui)定(Ding)容(Rong)1L。(?)
硝(Xiao)酸(Suan)标(Biao)准(Zhun)溶(Rong)液(Ye)·(?)c(HNOO=0.lmol/L量(Liang)取(Qu)7mL硝(Xiao)酸(Suan)(优(You)级(Ji)纯(Chun))于(Yu)1L容(Rong)量(Liang)瓶(Ping)中(Zhong),(?)用(Yong)煮(Zhu)沸(Fei)并(Bing)冷(Leng)却(Que)的(De)水(Shui)定(Ding)容(Rong)。(?)
氢(Qing)氧(Yang)化(Hua)钠(Na)标(Biao)准(Zhun)溶(Rong)液(Ye)的(De)标(Biao)定(Ding):称(Cheng)取(Qu)0.5000g预(Yu)先(Xian)在(Zai)105~110°(?)C烘(Hong)干(Gan)1h的(De)邻(Lin)苯(Ben)二(?)甲(Jia)酸(Suan)氢(Qing)钾(Jia)(KHGHO).加(Jia)100mL新(Xin)煮(Zhu)沸(Fei)冷(Leng)却(Que)后(Hou)的(De)水(Shui),(?)加(Jia)3~4滴(Di)酚(Fen)溶(Rong)液(Ye)。(?)
用(Yong)氢(Qing)氧(Yang)化(Hua)钠(Na)标(Biao)准(Zhun)溶(Rong)液(Ye)滴(Di)定(Ding)至(Zhi)浅(Qian)红(Hong)色(Se)。(?)
浓(Nong)度(Du)计(Ji)算(Suan):c(NaOH)二(?)m/0.2042V(mol/L)m-称(Cheng)取(Qu)邻(Lin)苯(Ben)二(?)甲(Jia)酸(Suan)氢(Qing)钾(Jia)的(De)质(Zhi)量(Liang)g;V-标(Biao)定(Ding)所(Suo)消(Xiao)耗(Hao)的(De)氢(Qing)氧(Yang)化(Hua)钠(Na)标(Biao)准(Zhun)溶(Rong)液(Ye)体(Ti)积(Ji),(?)mLo
硝(Xiao)酸(Suan)标(Biao)准(Zhun)溶(Rong)液(Ye)的(De)标(Biao)定(Ding):取(Qu)20.00mL氢(Qing)氧(Yang)化(Hua)钠(Na)标(Biao)准(Zhun)溶(Rong)液(Ye),(?)用(Yong)新(Xin)煮(Zhu)沸(Fei)冷(Leng)却(Que)后(Hou)的(De)水(Shui)稀(Xi)释(Shi)成(Cheng)100mL,加(Jia)3~4滴(Di)酚(Fen)溶(Rong)液(Ye),(?)以(Yi)硝(Xiao)酸(Suan)标(Biao)准(Zhun)溶(Rong)液(Ye)滴(Di)定(Ding)至(Zhi)无(Wu)色(Se),(?)计(Ji)算(Suan)硝(Xiao)酸(Suan)标(Biao)准(Zhun)溶(Rong)液(Ye)的(De)浓(Nong)度(Du)。(?)