Fengfan CAS 125678-52-6 Diethylamino propyne formic acid salt PABS

Product Overview

Diethylamino propyne formic acid salt, CAS 125678-52-6, is a single-component liquid brightener for nickel plating baths, whether a shop runs its own line or sells nickel plating services. The diethylamino propyne active group is supplied in formate form, so the product arrives as a transparent, yellowish to brownish yellow liquid that dissolves completely in water and can be measured by volume straight from the drum.

In the tank it works as a top brightener and lasting leveling agent, added in millilitres per litre. That makes it part of the finish-shaping layer of a bright nickel plating formula: carriers and base brighteners, dosed in grams per litre, set the broad character of the deposit, while a top brightener and leveling agent decides how evenly the nickel reflects and how well it covers fine polishing marks left by the substrate.

We supply the grade to any nickel plating company, brightener formulator or importer who wants one liquid component they can meter consistently, drum after drum. It suits both routes — dosed directly into a working bath, or built into a proprietary top-brightener blend sold under a formulator's own label.

One point worth flagging before anyone converts an existing plating process recipe: this is the formate salt, not the free amine and not the sulfate of the same active group. An addition figure written around another salt should be rechecked against a panel before it is copied into a production tank.

Specifications

Deposit Brightness and Leveling

For a shop offering nickel plating services, a top brightener earns its place by what the finished part looks like. On an electro nickel plating line the deposit has to reflect evenly across the whole component, not only where the current density is highest, and it has to do that shift after shift rather than just in the first days after a new make-up.

Brightness. The additive lifts the lustre of the nickel layer so the part reads as bright metal instead of a grey matte surface. Where nickel is the final finish, that is what the customer inspects; where chrome follows, the nickel underneath sets how deep the chrome appears.

Leveling. Fine grinding marks, polishing lines and light substrate roughness are filled rather than copied into the deposit. In practice that reduces the mechanical polishing done before the metal plating process, and the rework caused by a coating that follows every scratch on the workpiece.

Persistence. "Lasting" refers to the working life of the bath: the leveling effect is meant to hold through a production campaign instead of fading after a few days, so panels pulled at the end of a run can be matched to panels pulled at the start, with fewer corrective additions in between.

Clean addition. Being a water-soluble liquid, the product disperses quickly and leaves no undissolved particles behind. Undissolved brightener is a familiar source of roughness in a plating process, and a component that is already in solution takes that risk out of the dosing step.

Applications

• Decorative bright nickel before chrome. Tube, furniture hardware, sanitary fittings and appliance trim: the nickel layer carries the reflectivity and the chrome on top only adds a blue-white cast, so brightness that drifts between batches shows up as mismatched sets on the same order.
• Zinc die-cast components. Cast surfaces are expensive to polish, so more of the smoothing has to come from the metal plating process; a leveling top brightener helps the nickel cover the fine texture of the casting instead of amplifying it.
• Brass and copper fittings. Nickel over brass or copper is a familiar decorative build, and an even, bright nickel layer decides whether a nickel plating company sends the part straight to assembly or back to the polishing bench.
• Functional nickel on working parts. Shafts, pins, rollers and hydraulic components need a smooth, uniform surface for fit and service life, not only for appearance — the same leveling property, used for a different reason.
• Shops selling nickel plating services. A job shop running several nickel tanks can hold one liquid top brightener for all of them and dose by volume per tank instead of weighing powder for each one.
• Brightener formulators. The formate grade can serve as the leveling component inside a proprietary top-brightener blend, alongside the wetting agents and secondary brighteners a formulator already works with.

Grade Comparison

Bath Make-up and Dosing

1. Work out the addition from the bath volume and the 5–40 ml/L window, then treat that figure as the starting point for a panel test rather than a final setting for the nickel plating tank.
2. Pre-dilute the measured volume in water before it goes in. Because the product is fully water-soluble, a diluted addition spreads through the bath faster than a neat one poured at the rim.
3. Add slowly with the bath under the normal agitation for your plating process, and let the bath circulate before the next panel is pulled.
4. Pull a Hull cell panel and read brightness and leveling across the current density band your parts actually see on the electro nickel plating line. That panel, not a rule of thumb, decides whether the next addition goes up or down.
5. Record the addition, the panel result and the date against the batch number on the drum. Over a few weeks the record gives you the consumption rate of your own bath, which is worth more than a general figure copied from another nickel plating company.
6. Recheck after a tank clean-out or a change of carrier. The same millilitre figure can read differently on a fresh bath, and a panel costs far less than a rejected batch.

Packing and Storage

• 25 kg drum. The product ships as a liquid, ready to measure by volume; there is no powder to dissolve and no pre-mix step at goods-in.
• Batch-marked. Each drum carries the batch number of its lot, so a panel result can be traced back to the drum it came from.
• Cool, dry storage. Keep the drum closed and out of direct sun in a cool, dry store — the condition the product is supplied for.
• Clean measuring. Use a clean measure and close the drum again after each addition; a liquid grade keeps the mixing area free of dust and spilled powder.
• Keep the label legible. Note the batch number against the panels it produced. If a brightness question ever comes up, that note is what turns a general complaint into a solvable case.

Ordering and Delivery

1. Tell us the grade, the pack format and the quantity you need. Minimum order quantity varies by chemical and is confirmed with our sales team for each order.
2. Packing. This product is supplied in 25 kg drums; across our chemical range we also pack 10 kg/box, 25 kg or 50 kg/bag, 20 kg/25 kg/30 kg/200 kg/drum and 1,000 kg/IBC drum, so tell us which format fits your store and your dosing.
3. Lead time. Factory production is 2 weeks.
4. Payment. 100% T/T in advance.
5. Shipping. Arranged per the terms agreed in the current contract.
6. Documents. After delivery we issue an inspection certificate stating the batch number and the warranty period for that lot.

Technical Support & Model Matching

Choosing the right match is where most sourcing decisions stall. As a trading supplier, we keep one point of contact from first enquiry to after-sales: tell us what you are making and the conditions you work under, and we shortlist the closest matches from our supplier network, compare specifications and arrange samples before you commit to a bulk order. If something does not behave as expected, we work with the supplying partner on the cause and a practical fix, and stay with the case until it is settled. Email, WeChat or WhatsApp enquiries get a reply within 24 hours.

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