高中化学有哪些颜色的溶液,要全的

2025-02-07 04:54:39
推荐回答(2个)
回答1:

1.红色:Fe(SCN)3(红色溶液);Cu2O(红色固体);Fe2O3(红棕色固体);
红磷(暗红色固体);液溴(深红棕色);
Fe(OH)3(红褐色固体);Cu(紫红色固体);溴蒸气、NO2(红棕色);石蕊遇酸性溶液(红色);
品红溶液(红色);在空气中久置的苯酚(粉红);石蕊遇酸性溶液(红色);酚酞遇碱性溶液(红色)。2.紫色:石蕊在中性溶液中(紫色);
Fe3+与苯酚反应产物(紫色);
I2(有金属光泽紫黑色固体);KMnO4固体(紫黑色);
MnO4—(紫红色溶液);固态O3(紫黑色)
钾的焰色反应(紫色)
I2蒸气、I2在非极性溶剂中(紫色)3.橙色:溴水(橙色);K2Cr2O7溶液(橙色)4.黄色:AgI(黄色固体);AgBr(淡黄色固体);Ag3PO4(黄色固体);
FeS2(黄色固体);Na2O2(淡黄色固体);
S(黄色固体);
Au(金属光泽黄色固体);I2的水溶液(黄色);;久置的KI溶液(黄色)(被氧化为I2);
碘酒(黄褐色)Na的焰色反应(黄色);工业浓盐酸(黄色)(含有Fe3+);NaNO2(无色或浅黄色晶体);
Fe3+的水溶液(黄色);
硝基苯中溶有浓硝酸分解的NO2时(黄色)久置的浓硝酸(黄色)(溶有分解生成的NO2);
浓硝酸粘到皮肤上(天然蛋白质)(显黄色);5.绿色:
Cu2(OH)2CO3(绿色固体);
Fe2+的水溶液(浅绿色);K2MnO4(绿色)FeSO4•7H2O(绿矾);
Cl2、氯水(黄绿色);F2(淡黄绿色);
CuCl2的浓溶液(蓝绿色);7.棕色:FeCl3固体(棕黄色);
CuCl2固体(棕色)6.蓝色:Cu(OH)2、CuSO4•5H2O、Cu2+在水溶液中(蓝色);
氢气、甲烷、乙醇在空气中燃烧(淡蓝色火焰);
一氧化碳在空气中燃烧(蓝色火焰);淀粉遇I2变蓝色;
Cu(OH)2溶于多羟基化合物(如甘油、葡萄糖等)的水溶液中(绛蓝色);
O3(气态——淡蓝色;液态——深蓝色;固态——紫黑色)。7.黑色:FeO;Fe3O4;FeS;
CuO;u2S;
MnO2;C粉;
Ag2S;
Ag2O
PbS;gCl、AgBr、AgI、AgNO3光照分解均变黑;绝大多数金属在粉末状态时呈黑色或灰黑色。8.白色:常见白色固体物质如下(呈白色或无色的固体、晶体很多):AgCl;
Ag2CO3;
Ag2SO4;
Ag2SO3;
BaSO4;
BaSO3;
;Ba3(PO4)2;
BaHPO4;
CaO;Ca(OH)2;
CaCO3;
MgO;
Mg(OH);MgCO3;
Fe(OH)2;
AgOH;
PCl5;
SO3;
三溴苯酚;uSO4铵盐(白色固体或无色晶体);Fe(OH)2沉淀在空气中的现象:白色→(迅速)灰绿色→(最终)红褐色pH试纸:干燥时呈黄色;中性时呈淡绿色;酸性时呈红色,酸性越强,红色越深;碱性时呈蓝色,碱性越强,蓝色越深。红色石蕊试纸:红色(用于检验碱性物质)
蓝色石蕊试纸:蓝色(用于检验酸性物质)淀粉试纸:白色(用于检验碘单质)
KI—淀粉试纸:白色(用于检验氧化性物质)石蕊:pH<5时呈红色;pH介于5~8时呈紫色;pH>8时呈蓝色。酚酞:pH<8.2时呈无色;pH介于8.2~10时呈粉红色;pH>10时呈红色。甲基橙:
pH<3.1时呈红色;pH介于3.1~4.4时呈橙色;pH>4.4时呈黄色。甲基红:
pH<4.4时呈红色;pH介于4.4~6.2时呈橙色;pH>6.2时呈黄色。

回答2:

溶液中,
铁离子,显黄色
铜离子,显蓝色
高锰酸根离子,显紫红色
亚铁离子,显浅绿色
重铬酸根,Cr2O7 2- ,橙色
铬酸根:CrO4 2-,黄色

而浓度的大小对于溶液的盐酸是有影响的,一般记住这些颜色就可以了

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