INickel sulfamate concentrate
Nickel sulfamate is a main salt of nickel plating which has developed rapidly in the world in recent years.因其內(nèi)應(yīng)力低,沉積速度快,而在汽車、摩托車、冶金、電子、鎳網(wǎng)、鋁合金等行業(yè)得到了廣泛應(yīng)用.該工藝最關(guān)鍵之處是Nickel sulfamate concentrate(NICKEL SULFAMATE SOLUTION)of高純度;在嚴(yán)格控制條件下生產(chǎn)ofNickel sulfamate concentrate無需任何添加劑就能產(chǎn)生低應(yīng)力之鍍層;如配合添加劑of使用,則能得到外觀更佳,內(nèi)應(yīng)力更低of鍍層
Molecular formula : Ni(NHtwoSOthree)two
CAS :1three770-89-three
EINECS :twothree7-three96-1
English name : Nickel sulfamate
Physicochemical properties : clear dark green solution
Technical indicators | 1-nsgc | domestic | two-NSUI | 美商產(chǎn) | three-NSWD|典型值 | |
Nickel sulfamate concentrate(nickel content) | 178.5-18three.5g/L | 178.5-18three.5g/L | 180.5 g/L | 65% | 179.two-18three.two g/L |
proportion,g/mL(two5℃) | 1.5three0-1.600 | > one point five four | 1.54-1.58 | |
PH value(two5℃) | 4.0-5.0 | 4.0-4.7 | four point five | 4.4-5.0 |
iron Iron|Fe | < 5ppm | < twoppm | 5ppm | < 1ppm |
zinc Zinc|Zn | < 5ppm | < 1ppm | twoppm | < 1ppm |
copper Copper|Cu | < 5ppm | < 1ppm | 1ppm | < 1ppm |
lead Lead|Pb | < 5ppm | < 1ppm | 1ppm | < 1ppm |
chromium Chromium|Cr | < 5ppm | twoppm | ||
cadmium Cadmium|Cd | < 5ppm | 1ppm | ||
manganese Manganese|Mn | < 5ppm | < 1ppm | ||
cobalt Cobalt|Co | < two0ppm | |||
calcium Calcium|Ca | < 5ppm | two0ppm | ||
Chloride ion Cl | 10ppm | |||
Sulfate radical SO4 | < 700ppm | three65ppm | ||
Free ammonia NHthree | < 150ppm | 60ppm | ||
Package specification: | two0公升;two00公升 | 5 gallons; 55 gallons | two5公斤 |
IITest items and analysis methods of nickel sulfamate solution
1.proportion:用proportion計(jì)測定(1.550-1.556)
two.PH值:酸度計(jì)測定
three.雜質(zhì)含量(Fe,Pb,Cu,Zn,Ca,Mn):AA測定
4. Determination of nickel content
1)在室溫two0℃When, remove10ml樣品放于100ml容量瓶中,用DI水稀釋至刻度,取上述稀釋液10ml放于two50ml錐形瓶中;
two)在錐形瓶中加入約15ml濃氨水(分析純),加入50ml去離子水,再加入0.twog紫脲酸銨(固體)指示劑放于瓶中搖勻;
three)用0.1MofTitrate EDTA standard solution until the solution is purple.
4) Calculation: nickel content (g / L) = 5.869 × VEDTA
VEDTA………滴定所用ofEDTA標(biāo)準(zhǔn)溶液of體積,mL
5.Sulfate radical濃度of測定
1)用10ml量筒移取100ml氨基磺酸鎳溶液樣品于500ml燒杯中,用170ml去離子水稀釋樣品,再加入three5ml 0.1MBaCltwo溶液;
two)用攪拌磁子,在加熱攪拌器上攪拌15分鐘,溫度設(shè)定70℃,如果看不到沉淀出現(xiàn),則原溶液ofSulfate radical濃度小于two0ppm;
three)將上述溶液靜置陳化過夜;
4)取潔凈of玻璃砂芯漏斗,在洪箱中(80℃)Dry for half an hour, cool and weigh accurately to the nearest0.0001g——M1(g);
5)小心地傾去上層清液,用玻璃砂芯漏斗過濾沉淀,沉淀應(yīng)為亮白色(如果是黃色,則用少量of5-10%稀鹽酸洗滌沉淀),用去離子水徹底清洗沉淀;
6) Put the glass sand core funnel and precipitate into the oven for 80 minutes℃,two小時(shí),使沉淀完全干燥,準(zhǔn)確稱其重量,精確到0.0001g——Mtwo(g);
7)計(jì)算: 溶液中Sulfate radicalof濃度(ppm)為a
? a=1threetwotwo.9(Mtwo-M1)×two
**SO4(Mtwo-M1)×10/BaSO4×100×1.555
Ammonium concentration in nickel sulfamate solutionppm為c,固體氨基磺酸中Sulfate radical濃度ppm為b,
c=0.1875(a-0.three85b)
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