水溶性金封孔剂SSILTAN-GS
(Au,Ag Anti-Oxidant)
产品说明:
金封孔剂SSILTAN-GS是通过简单浸渍在室温下的Au和Ag的抗变色化学品。经过SSILTAN-GS处理后,能使镀金、银、仿金镀层的抗氧化能力提高数倍,此外对焊接和电阻和抗蚀性没有任何改变;在H2S气体测试中非常突出无变色。
产品颜色:
SSILTAN-GS金封孔剂
(外观:白色酸性浑浊液体,使用时请摇均匀再使用)
设备要求
1. 1.设备槽体: PP、PE
2.加热器和冷却器:铁氟龙或石英管
3.循环:连续循环
金封孔剂SSILTAN-GS使用方法及条件:
材料名称 标准ml/L 范围ml/L
金封孔剂SSILTAN-GS ml/L 100 80-200
纯净水 ml/L 900 800-920
温度(℃) 45 25—70
PH值 4.2 3.8-6.5
浸渍时间(分钟) 8 0.5-10
搅拌 机械搅拌循环
维护及补充:
1. 补充量约为:
每平方米补加SSILTAN-GS金保护20ml,主要取决于带出消耗。
每次大处理后,都需要分析补加。
2.浸渍后检查金属表面
浸渍和水洗后,如果金属表面没有圆形水滴和混浊层,这意味着浓度较低。
化学分析法
1.需要药水
1. 酚酞指示剂
2. 1N NaOH溶液
2.步骤
1. 用吸管吸取100mlSSILTAN-GS溶液加入200ml锥形瓶中
2. 加3-6滴酚酞指示剂
3. 用1N NaOH溶液滴定直至药水颜色从无色变为淡粉色停止滴定
4. 测定SSILTAN-GS的浓度
SSILTAN-GS(%)= 1N NaOH(ml) ⅹ 3.84 – 0.36
3.标定数据
1N NaOH用量(ml)
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SSILTAN-GS浓度(%)
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SSILTAN-GS含量(ml/L)
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4.0
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15
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150
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2.7
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10
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100
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2.2
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8
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80
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防变色试验
1.氯化铵5%以上30分钟,无变色;(在氯化铵的8%,超过20分钟-没有变色)
2.K2S的5%以上5分钟,无变色。
3.镀金镀层96小时盐雾测试无腐蚀
包装
SSILTAN-GS 5L/20L/桶
英文版本:
SSILTAN-GS
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(Au,Ag Anti-Oxidant)
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INTRODUCTION
Anti-Oxidant SSILTAN-GS is anti-tarnish chemical of Au & Ag by simply dipping at room temperature. After treatment of SSILTAN-GS, the appearance of Ag & Au is not changed.
Also, Soldering & Current Resist are not changed. No discoloration at H2S gas test.
MAKE-UP CHEMICAL REQUIRED
SSILTAN-GS Chemical
( Appearance : White acidic liquid )
EQUIPMENT
1. Tanks
Polypropylene, PE
2. Heater and cooler
Teflon or Porcelain
3. Circulation
Needed
MAKE-UP FORMULATION
Ⅰ. STANDARD MAKE-UP FORMULATION
SSILTAN-GS 10 %
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D.I. Water 90 %
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OPERATING CONDITIONS
Item
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STD
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Range
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SSILTAN-GS
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ml/L
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100
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80 - 200
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Temperature
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(℃)
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45
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25 – 70
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Dipping Time
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Sec.
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Over 20
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20 - 300
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Circulation
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Mechanical
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Mechanical
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MAINTENANCE CONDITIONS
The replenishment depends on drag-out volume.
Replenishing volume is approx. 20ml of SSILTAN-GS per m2.
Every 1 turn-over, New Make-Up should be done.
* CHECKING METAL SURFACE AFTER DIPPING
After dipping & W/R, if there are no round water drop & turbid layer on the metal surface, this mean the concentration is low.
In the same condition, good chemical do not make turbid layer on the metal surface
* CHECKING WATER DROP THROWING TEST
We can check relative concentration by water drop throwing test.
In the same condition, big angle on metal surface means high concentration of chemical.
CHEMICAL ANALYSIS METHOD
1) Pipette 20ml of working solution into 250ml of Flask
2) Add 20ml of 0.1N Iodine solution
3) Leaving for 10 min.
4) Titrate with 0.1N-Sodium Thiosulfate Solution up to Slight yellow
5) And add 1ml of Starch Indicator(1%).
6) Titrate with 0.1N-Sodium Thiosulfate
End point : Clear
Calculation : SSILTAN-GS = 150 x (20-Titrate volume) / 7.5
ANTI-TARNISHING TEST CONDITION.
1) Over 30 min in 5% of Ammonium Chloride, No discoloration
( at 8% of Ammonium Chloride, Over 20 min – No discoloration )
2) Over 5 min in 5% of K2S, No discoloration
PACKING
SSILTAN-GS
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(Plastic tank)
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Net 5、20L
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