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Nickel sulfamate solution and its analytical method

2022-03-03 431

INickel sulfamate concentrate

Nickel sulfamate is a main salt of nickel plating which has developed rapidly in the world in recent years.因其內應力低,沉積速度快,而在汽車、摩托車、冶金、電子、鎳網、鋁合金等行業得到了廣泛應用.該工藝最關鍵之處是Nickel sulfamate concentrate(NICKEL SULFAMATE SOLUTION)of高純度;在嚴格控制條件下生產ofNickel sulfamate concentrate無需任何添加劑就能產生低應力之鍍層;如配合添加劑of使用,則能得到外觀更佳,內應力更低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

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

proportiong/mLtwo5℃)

1.5three0-1.600

> one point five four


1.54-1.58

PH valuetwo5℃)

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計測定(1.550-1.556)
two.PH值:酸度計測定
three.雜質含量(Fe,Pb,Cu,Zn,Ca,Mn):AA測定
4. Determination of nickel content
1)在室溫two0When, 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標準溶液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,溫度設定70,如果看不到沉淀出現,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 minutestwo小時,使沉淀完全干燥,準確稱其重量,精確到0.0001g——Mtwo(g);
7)計算: 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)