Fengfan Cas 1606-79-7 Butynediol Propoxylate Nickel plating BMP

Product Overview

Butynediol propoxylate is an alkynol brightener and leveling agent for nickel electroplating baths. It arrives as a liquid intermediate and is added at a low rate alongside the carrier, the wetting agent and the other brightener components that make up a working nickel package.

Bright nickel plating is where most of it goes. The deposit has to come out glossy across the whole part — on the faces that sit closest to the anode and in the recesses that see the least current — and it has to stay that way through a long production run instead of dulling after a shift or two. This grade works on both halves of that job: it lifts the gloss, and it levels, smoothing the fine roughness that would otherwise be cut back on a polishing wheel.

Placement matters. The product belongs to electro nickel plating, not to the electroless line: the addition goes into the nickel electrolyte itself, and the working figure is set on the bath you actually run rather than copied from another shop's process sheet.

Buyers are usually decorative plating shops, formulators who blend their own brightener systems, and distributors stocking intermediates for a region.

Specifications

How It Performs in the Bath

• Brightening. The addition lifts the gloss of the nickel deposit, so a bright nickel plating bath needs less work downstream to reach the finish the customer signed off on.
• Levelling. It works on micro-roughness rather than on the shape of the part: the deposit reads flat and even, which is what shortens or removes mechanical finishing on decorative work.
• Lasting action. The leveling effect is a lasting one — it holds through a production cycle instead of fading after the first hours and pushing the operator into repeated top-ups.
• A small addition. The working range sits in milligrams per litre, so one drum treats a large volume of electrolyte and the daily addition is easy to weigh accurately.
• Liquid handling. There is no dissolving step: the grade is a transparent liquid that can be weighed or metered straight into a moving bath.
• Repeatable across orders. For a shop supplying nickel plating services, whether the work is decorative or wear-resistant nickel plating, the figure written on the bath card is what keeps the finish the same from one order and one operator to the next.

Dosing and Bath Control

1. Note the working volume of the bath and the brightener package already in it before anything is added.
2. Set the first addition inside the 20–120 mg/L range; as a scale check, 1,000 L of electro nickel plating bath takes between 20 g and 120 g of the product.
3. Add it slowly into a moving bath rather than as a single slug into a still tank, and keep the addition point away from the anode baskets.
4. Pull a Hull cell panel across the current density band you plate at, and read brightness and leveling from one end of the panel to the other before the addition goes into production.
5. Write the figure that gives the finish you want on the bath card, then top up on a fixed schedule instead of waiting for the deposit to dull.
6. Re-check that figure after any change to the plating process — a new carrier, a different wetting agent or a temperature shift moves where the brightener sits.

Applications in Nickel Plating

Decorative bright nickel plating is the main home for this grade. Steel, brass and zinc die castings going through a copper–nickel–chrome sequence are the classic case: the nickel layer carries the gloss, and a level deposit means less buffing between the nickel and the chrome.

Job shops that supply nickel plating services on a mixed order book use it the same way from one order to the next — the product does not care what the part is, only how the bath is running.

It is not an electroless product. Lines that also run electroless nickel plating services keep that chemistry and its additives separate, and this grade stays on the electrolytic side.

Functional parts use it too. Where the nickel is specified as wear-resistant nickel plating rather than for show, the leveling action still matters: it holds an even deposit across the part, and uneven thickness is where wear and corrosion start first.

Compatibility and Substitution Notes

• Not the same as the ethoxylated grade. The ethoxylated butynediol sold as BEO is a different molecule; the two are not interchangeable gram for gram, and a switch has to be trialled rather than calculated.
• One component at a time. Keep the carrier, the wetting agent and the other levelers unchanged while you trial this one — change two things at once and you cannot tell which part of the plating process moved the finish.
• Product pH is not bath pH. The pH in the table describes the liquid in the drum, not a setting for your tank; set the working pH of the electrolyte to your own process specification.
• Ask with the CAS number. When you request a match, quote 1606-79-7 together with your current additive list, and a nickel plating company or a local distributor can check the grade against what they stock.
• Electrolytic only. If the line is set up for electroless nickel plating services, this is not the additive for that bath, and no addition level will make it one.

Handling and Storage

Treat it as a concentrated additive. Wear the gloves and eye protection named on the safety data sheet, keep the drum closed between additions, keep ventilation running where the bath is made up, and do not decant into an unlabelled bottle.

Store drums in a cool, dry, ventilated area out of direct sunlight, with the original label and batch number on the container. Rotate stock so the oldest drum is used first, and keep drums off a damp floor.

Before the first delivery, ask your sales contact for the safety data sheet for your market and keep a copy where the drums are stored. If a drum arrives with a damaged closure or a label you cannot read, set it aside and tell us rather than adding it to a bath.

Packing, Ordering and Delivery

• Payment: 100% T/T in advance.
• Lead time: 2 weeks.
• Minimum order quantity: varies by chemical; confirmed with our sales team per order.
• Packing: 10 kg/box; 25 kg or 50 kg/bag; 20 kg/25 kg/30 kg/200 kg/drum; 1000 kg/IBC drum.
• Standard pack for this grade: 25 kg plastic drum.
• Shipping: per the terms agreed in the current contract.
• Documentation: an inspection certificate is issued after delivery stating the batch number and the warranty period.
• Volume planning: if you supply nickel plating services and run more than one bath, give your sales contact the monthly consumption so the order quantity and delivery rhythm can be agreed.

Other Products in the Range

Shops that run more than one finishing line often buy several intermediates from the same place. Alongside this nickel brightener, the range covers the SZ-30B brightener system for sulphate acid zinc plating, ZN 50 bright zinc for rack and barrel work, the ZN-500 brightener for cyanide-free alkaline zinc plating, the Phoenix EB 204A-204B divalent tin salt electrolytic colouring additive, the Phoenix Seal 149-L and 149-T mid-temperature sealing agents for aluminium anodizing, the FI-970 bright acid copper process, FF-4219 wood, stone and concrete nano-protective, Nickel Purify P3, and the FF-116 environmentally friendly chrome mist inhibitor.

Buyers who run several of these lines usually put them on one order, placed direct or through the nickel plating company or distributor they already buy from, so the paperwork and the delivery dates stay together.

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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