A look inside our Barka Industrial Area warehouse: how we confirm the grade, pack, label and dispatch a chemical order, using an antifoam defoamer order as the example.
Most searches for a chemical supplier in Barka, Oman end on a directory listing with a phone number and nothing else. This page shows what happens to your order at our warehouse in Barka Industrial Area, from your first message to the loaded truck. We use an antifoam defoamer order as the example. The same steps apply when the order also carries a coolant or a rust remover for a site in Muscat, Sohar, Salalah or Duqm. To start an order, send the part number and quantity on WhatsApp to +968 77333599.
Who we are: a chemical supplier in Barka, Oman
Muscat Chemical trades as Muscat & Barka for Business Trading. Our store is in Barka Industrial Area, between Muscat and Sohar. We supply industrial chemicals under RXSOL part numbers to customers across the Sultanate.
Buyers often send us a mixed order. It might be pails of coolant for a generator fleet, drums of rust remover for a maintenance shutdown and an antifoam for the effluent plant. Each line is picked against its part number. You can see the full range on our products page.
Step 1: We confirm the grade before anything is packed
With foam control, picking the wrong grade costs you more than ordering the wrong quantity. Antifoams and defoamers lower surface tension where air meets liquid. They do not dissolve, so they spread over the bubble film and break it. An antifoam stops foam forming, and a defoamer knocks down foam that is already there.
The first question we ask is where you will dose the product. The two main families are silicone (PDMS-based) and non-silicone, which covers mineral oil, fatty alcohol, wax, polyether and ester types. Silicone types work fast at a low dose. Non-silicone types biodegrade more easily, but they usually need a higher dose and do not last as long.
If your dosing point sits ahead of RO or UF membranes, tell us when you order. Silicone defoamers can cause irreversible blockages in these membranes, and in one reported case the plant lost 40% of its permeate flow. For membrane plants and food use, we point you to a silicone-free grade such as Antifoam Defoamer Silicon Free (RXSOL-40-2066-025). For thermal seawater desalination, the grade is Antifoam Defoamer Elite M8 (RXSOL-16-2066-200). It is a blend of modified alcohols and polymerised glycol ethers made for seawater distillation plants.
For general effluent and wash water, the silicone emulsion grade Antifoam Defoamer RXSOL-16-2066-210 covers water treatment, food processing, paints and coatings, pulp and paper, oil and gas and mining. For amine and glycol dehydration units in gas plants, RXSOL-16-2066-025 is a polyether polyol based grade made to stay active when salt levels in the unit are high. Our article on antifoam defoamer for effluent and wash water in Oman goes further into choosing between them.
Step 2: Picking the part number
Once you agree the grade with us, we pick against the RXSOL part number on your quote, not against a product name. Several of our antifoams share the name Antifoam Defoamer, so the part number is what separates a silicone emulsion from a silicone-free grade. When the goods arrive, check the label against your order line.
In Oman, defoamer is commonly supplied in 210 litre drums. Tell us the container size your site can handle, for example if there is no forklift at the receiving end. We confirm what we can pack when we send the quote.
Step 3: The documents that travel with the order
The MSDS for each product is available on request. If your receiving store or your client needs a certificate of analysis or a specific delivery note format, put it on the purchase order so we can confirm it with the quote. Asking at the start saves a delivery being held at the gate.
Keeping water-based antifoam emulsions safe in Oman's heat
Typical storage and transport limits for water-based silicone antifoam emulsions are 0 °C to 40 °C. In summer, shade temperatures in Barka, Muscat and the interior go above 40 °C. A drum left in direct sun at a site gate gets hotter than the air around it. Do not let the product overheat or freeze, and check the label for the best-before date.
At your site, store drums under a roof and out of direct sun. Keep the closure tight between uses and use the oldest stock first. If an emulsion has stood for a long time, stir it gently before use and avoid high shear.
Antifoam dosage and dilution at your site
The right dose depends on your water and your foam, so start with a jar test or a short trial. A typical silicone emulsion dose is 1 to 100 ppm in water systems, or 0.05 to 1.0% of the formulation in polymer, paint and textile systems. You can dose emulsions neat or pre-dilute them by stirring gently into cold soft water, typically up to 1 part product to 9 parts water. Use the dilution promptly because it separates, and re-stir gently if it has stood more than 24 hours.
For Elite M8 in seawater distillation, the dose is typically in the range 0.05 to 0.1 mg/l in the seawater feed stream, depending on feed water quality. Its activity is not dependent on temperature, so you do not need to change the dose when the top brine temperature changes.
Do not overdose. Too much defoamer can leave oily films on heat exchangers and foul membranes, and mixing incompatible defoamer chemistries can cause deposits or new foam. In cooling towers, foam often comes from overcycling, surfactants in the biocide programme, biofilm breakdown or oil leaking in from a heat exchanger. Fix the cause as well as dosing. Our antifoam dosage and safety guide covers the dosing method in more detail.
| Part number | Grade | Typical use | Dosage | Technical data |
|---|---|---|---|---|
| RXSOL-16-2066-210 | Antifoam Defoamer, silicone emulsion | Water treatment, effluent, food processing, paints, pulp and paper, oil and gas, mining | Typical for silicone emulsions: 1 to 100 ppm in water systems; confirm by jar test | Liquid, faint odour; may be used as received or diluted |
| RXSOL-16-2066-200 | Antifoam Defoamer Elite M8 | Seawater distillation and desalination plants | 0.05 to 0.1 mg/l in the seawater feed stream, depending on feed water quality | Clear to pale yellow liquid; water content 4-5% w/w; specific gravity at 25°/25°C: 1 |
| RXSOL-40-2066-025 | Antifoam Defoamer Silicon Free | Gas plants, amine units; uses where silicone must be avoided | Confirm by jar test or trial | Liquid, clear, faint odour; pH 7; flash point closed cup 229.4 C (444.9 F) |
| RXSOL-16-2066-025 | Antifoam Defoamer, polyether polyol based | Amine and glycol dehydration units, gas recovery and LNG plants | Confirm by jar test or trial | Liquid, clear, faint odour; pH 7; boiling point >85°C; flash point closed cup 229.4°C (444.9°F) |
| All grades | MSDS on request | |||
Delivery from Barka to Muscat, Sohar, Salalah and Duqm
Barka sits between Muscat and Sohar, so we reach both by road from our warehouse. Salalah and Duqm are longer runs to the south. We give you the dispatch date with the quote. If the order is urgent for a plant shutdown, a rig or a vessel at berth, say so in your first message and we will tell you at once what is possible.
For buyers in the north, the same RXSOL-16-2066-210 grade is listed on Sohar Chemical. In Dhofar, you can find it on Salalah Chemical.
Where to buy in Muscat and across Oman
Muscat Chemical (Muscat & Barka for Business Trading), Barka Industrial Area, Sultanate of Oman. Phone +968 77333599, WhatsApp +968 77333599, email muscatchem@gmail.com. We supply from the Barka warehouse to Muscat, Sohar, Salalah, Duqm and other sites in Oman. Tell us your delivery site and we confirm what is possible with the quote.
Send us the part number, the quantity, the delivery site and any documents you need. We reply with the quote and the dispatch date. Request a quote on WhatsApp at +968 77333599 or through our contact page.
Frequently asked questions
Is there a chemical supplier with stock in Barka, Oman?
Our warehouse is in Barka Industrial Area. Send the RXSOL part number and the quantity on WhatsApp to +968 77333599. We confirm availability and the dispatch date with the quote.
How fast can a chemical order from Barka reach Muscat, Sohar, Salalah or Duqm?
Muscat and Sohar are a short road run from Barka, and Salalah and Duqm take longer. We give you the dispatch date with the quote. If the order is urgent for a shutdown, rig or vessel, say so in your first message.
What is the difference between an antifoam and a defoamer?
An antifoam is dosed to stop foam forming. A defoamer knocks down foam that is already there. Neither dissolves: both spread over the bubble film and break it.
Silicone or non-silicone defoamer: which one should I use?
Silicone types work fast at a low dose, typically 1 to 100 ppm in water systems. Use a silicone-free grade ahead of RO or UF membranes and in food applications, because silicone can cause irreversible membrane blockages. Non-silicone types usually need a higher dose.
How should I store antifoam in Oman's summer heat?
Typical storage limits for water-based silicone antifoam emulsions are 0 °C to 40 °C. Keep drums under a roof and out of direct sun, do not let the product overheat or freeze, and check the label for the best-before date.