Aluminium Sulphate Granular (Iron Free)
Stocked or sourced on request — ask the counter.
Water is the scarcest input on any Namibian mine — bought at industrial tariffs, hauled from borefields, or reclaimed from tailings returns — and every cubic metre needs chemistry. Swachem supplies the mine-water train: alum and polyelectrolyte for clarification, lime and caustic for pH, SDIC and hypochlorite for camp potable supplies, hexametaphosphate against the scale that hard groundwater inflicts on cooling and process circuits.
Potable-water chemicals are supplied in grades appropriate for drinking-water treatment (iron-free alum, stabilised chlorine) with SDS and dosing documentation for site water-safety plans.
Namib-desert operations lose chlorine to heat faster than any dosing table predicts — store SDIC in the coolest container on site and buy quarterly, not annually. Your residual tests will thank you.
The lines mining buyers draw from this category most.
Stocked or sourced on request — ask the counter.

Flocculant aid dosed in small amounts to bind pin-floc into fast-settling floc.
Pack sizes on request
In stock: Windhoek & Walvis Bay

Stabilised chlorine granules/tablets — transportable disinfection for remote sites.
Pack sizes on request
In stock: Windhoek & Walvis Bay

Sequestrant that holds hardness in solution — protects geysers, boilers and drip lines.
Pack sizes on request
In stock: Windhoek & Walvis Bay
Stocked or sourced on request — ask the counter.
Stocked or sourced on request — ask the counter.
Polyelectrolyte dosed at the thickener or return-water dam is the core — tiny doses binding fines into fast-settling floc so return water re-enters the process clear. Alum or ferric assists where colloidal clays resist. Because return water concentrates under our evaporation rates, jar-test quarterly rather than annually; the dose that worked in April misbehaves by October.
SDIC is the remote-site answer: stabilised chlorine granules that survive hot storage and dose predictably through simple feeders, unlike liquid hypochlorite that fades in transit. Pair it with test strips so any operator can verify residuals daily. We pack camp-scale quantities with dosing charts — no water chemist required.
Sequestration ahead of the problem: sodium hexametaphosphate holds calcium in solution through the temperature rise that would otherwise plate it onto heat-exchange surfaces, and specialised treatments like Hydrex 4102 handle boiler-side programmes. Blowdown discipline matters as much as chemistry under our evaporation rates — we will help you set both.
Yes — clarification, pH, disinfection, softening and boiler lines all sit on one floor, so a single monthly order covers the thickener, the cooling towers and the camp kitchens. One manifest, one delivery, and pack sizes matched per point of use: pallets for the plant, 25 kg bags for the camp.
Swachem Windhoek · 2-8 Walter Street, Southern Industrial Area, Windhoek · Tel 061 235 051 · Monday – Friday, 08:00 – 17:00
Served primarily from Swachem Windhoek — 061 235 051. SDS, grades and delivery scheduling included in the quote.