Acid/Caustic Neutralization & Chemical Dosing for Semiconductor Facilities
Facilities-side neutralization, coagulation, and oxidant dosing — matched to real Blue-White calibration chemistries, not a generic pump catalog.
Same boundary as the rest of this cluster: this is facilities-side wastewater/neutralization dosing, never wafer-contact UHP chemical delivery. See the flagship guide for the full boundary explanation.
A neutralization dosing point is only as good as its chemical match. The right pump technology and wetted material for 40% ferric chloride isn't automatically right for 12.5% sodium hypochlorite — and picking one generic "chemical metering pump" for every dosing point on a treatment train is exactly the kind of assumption that shows up as a failure months later, not on day one.
What Blue-White's MS6 Flow Meter Is Factory-Calibrated For
The MS6 ultrasonic flow meter ships pre-calibrated for eight real chemicals — not a marketing list, the actual factory calibration set:
| Factory-Calibrated Chemical | Typical Fab Dosing Point |
|---|---|
| Water | Baseline / rinse-loop verification |
| Aqueous Ammonia 10% | Ammonia-based neutralization streams |
| Ammonium Hydroxide 30% | pH-up trim, ammonia-based treatment |
| Ferric Chloride 40% | Coagulation dosing ahead of clarification |
| Sodium Hypochlorite 12.5% | Oxidation, disinfection dosing |
| Sodium Permanganate 40% | Oxidation dosing |
| Hydrofluorosilicic Acid 25% | Fluoride-adjacent dosing points |
| Ammonium Sulfate 10% | Coagulation/precipitation support |
A chemical outside this list isn't a hard stop — Blue-White offers factory custom calibration on the same PVDF/PEEK hardware. No published standing price/lead-time exists for that path; treat it as request-driven, not a catalog guarantee.
Real Wetted-Material Ratings, Not Assumed Compatibility
Blue-White rates its own tube and diaphragm materials via 28-day immersion testing (E/G/F/U scale — Excellent/Good/Fair/Not Recommended). For sodium hypochlorite, one of the most common oxidant-dosing chemistries on a fab treatment train:
| Flex-A-Prene® (peristaltic tube) | Sodium hypochlorite, 12.5–25% | E — Excellent |
| Flex-A-Chem® (peristaltic tube) | Sodium hypochlorite, 12.5–25% | E — Excellent |
| DiaFlex® / PVDF (diaphragm) | Sodium hypochlorite, 25% | E — Excellent |
This is a real vendor-published rating, not an assumption carried over from a different chemical family — a rating for 12.5% sodium hypochlorite doesn't automatically transfer to a different concentration or a different oxidant without checking.
P-03 CHEM-FEED® C-1500N dosing 43% NaOH — the FLEXFLO M9 pH transmitter alongside it reads the actual process condition (7.24 pH) at the injection point, not just a pump-on signal.
Frequently Asked Questions
What chemicals is Blue-White's MS6 flow meter factory-calibrated for?
Eight, ships-ready: water, aqueous ammonia 10%, ammonium hydroxide 30%, ferric chloride 40%, sodium hypochlorite 12.5%, sodium permanganate 40%, hydrofluorosilicic acid 25%, and ammonium sulfate 10%. If a fab's actual chemistry isn't on that list, that's not a hard no — Blue-White offers factory custom calibration on the same PVDF/PEEK wetted hardware, but there's no published standing price/lead-time for it, so it's a request-driven confirmation, not a catalog guarantee.
Is peristaltic or diaphragm metering the right choice for a neutralization dosing point?
It depends on pressure and priming tolerance, not on the chemical alone. Peristaltic (FLEXFLO) has no valves or seals in the wetted path, is self-priming, and handles off-gassing chemicals like sodium hypochlorite cleanly — but tops out lower on pressure. Diaphragm (CHEM-FEED) reaches higher pressure (up to 180 psi on CD1/MD1) but requires priming. Neither is universally correct; the actual duty point decides it.
Does a sodium hypochlorite compatibility rating from Blue-White match what other vendors report?
Yes — Blue-White's own 28-day immersion testing rates Flex-A-Prene® and Flex-A-Chem® tube materials, and DiaFlex®/PVDF diaphragm material, all "Excellent" against 12.5–25% sodium hypochlorite. That's consistent with independent ratings already documented elsewhere in LibertyCES's material-compatibility data for the same chemical.
Does this replace the specific dosing equipment already specified in the fluoride or CMP wastewater guides?
No. This covers general acid/caustic and oxidant/coagulant dosing points on a facilities-side neutralization train. The fluoride treatment train's calcium reagent/pH-trim dosing (ProMinent Sigma series) and the CMP train's slurry-duty transfer pumps (Schurco Slurry) are their own specialized equipment, documented on their own guides — this page is a complementary, general-purpose dosing platform, not a replacement for either.
Match the pump and material to your actual chemistry
Ready to buy or need a fast answer? Call, text, or email James directly — (559) 395-5500 · [email protected].