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S-655 developer
2019-09-23 543
1、 Overview Developer s-655# is a kind of developer specially used for high-quality solder proof ink / line dry filmThe main components are high-purity potassium carbonate, fiber dissolving agent, wa
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H-382# lead free tin spraying flux
2019-09-23 523
1、 Overview 1. The effect of soldering aid is good, and the wettability of tin alloy layer is good. 2. The lead and tin on the surface of the printed board are uniform, smooth and bright, and have g
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102# acid etching additive
2019-09-23 565
1、 Nature It is suitable for acidic copper chloride etching solution to replace hydrogen peroxide to regenerate the etching solution. The chemical reaction is mild and the risk is low. The etching r
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Ferrous sulfate heptahydrate
2019-09-23 549
1、 Overview: Molecular formula: FeSO4 • 7h 2O, molecular weight: 278.05 Ferrous sulfate is monoclinic crystal of sky blue or green, with specific gravity of 1.898 and melting point of 64 ℃. It chang
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Sodium sulfide
2019-09-23 522
1、 Overview The molecular formula is Na2S and the molecular weight is 78.04. Properties: sodium sulfide is a reddish brown sheet or block solid with odor. The specific gravity of anhydrous sodium su
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Ro-300 bactericide
2019-09-23 556
1、 Overview Ro-300 bactericide is a compound broad-spectrum and efficient bactericide. It has good bactericidal effect on Gram-positive bacteria, negative bacteria, fungi, sulfate reducing bacteria,
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Ro-200 scale inhibitor
2019-09-23 539
1、 Overview Ro-200 scale inhibitor is a high-efficiency scale inhibitor / dispersant for membrane, which is used to prevent reverse osmosis membrane blockage caused by scale formation of metal hydrox
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Ro-100 reducing protective agent
2019-09-23 570
1、 Overview Ro-100 reducing protective agent is a general reducing agent for protecting reverse osmosis membrane. Its main function is to eliminate the damage of oxidizing substances in water (such a
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