- NEUTRALIZER / SOUR
- CONCENTRATE
Osmo Ultra Sour
Protects clothes from turning yellow and stops skin irritation.
- 1.0–2.0
- PH
- 3 ml/kg
- DILUTION
- 30L Drum
- PACK SIZES
- Laundry Acidic Sour
- TYPE
Anti-Yellowing & Fabric Protection System
Protects clothes from turning yellow and stops skin irritation.
- Neutralizes both free alkali and chlorine bleach residual
- Contains iron sequestrants to stop rust-water yellowing
- Prevents chemical skin irritation for end-users
- Restores fabric to skin-safe pH (5.5–6.5)
Features
Acidic Chemical Neutralization & Iron Sequestration
3 steps, start to finish.
- 01DoseDose into the final rinse cycle of the wash system.
- 02AllowAllow 3–5 minutes agitation time for complete neutralization.
- 03ExtractExtract water and send linens directly to drying/ironing.
Technical data
| Property | Value |
|---|---|
| Application Area | Laundry Acidic Sour |
| Form | Liquid |
| Color | Colorless |
| Function | pH Neutralizer & Anti-Yellowing Agent |
| Active Base | Organic/Inorganic Acids |
| Shelf Life | 24 Months |
| Manufacturer | Rossari Biotech |
| Temperature for use | Room Temprature |
Where it’s used
- Hospital Linen
- Hotel Bed Sheets
- Spa Towels
- Personal Wear
- Uniforms
Safety & handling
- 01Concentrated acidic liquid; causes severe skin/eye burns.
- 02Wear rubber gloves and goggles while handling concentrate.
- 03Do not mix with chlorine bleach directly.
- 04Store in corrosion-resistant containers.
Standards
- Commercial Laundry Technical Standard
Documents
Frequently asked
The questions facilities teams actually ask us.
Why do linens turn yellow?
Iron in water or leftover chlorine causes yellowing; Ultra Sour prevents both.
When should this be added?
Exclusively during the final rinse phase.
Does it help remove rust?
Yes, contains active sequestrants to dissolve rust stains.
Is it safe for skin?
Neutralizes fabrics to skin-friendly pH levels.
Often specified together
LAUNDRYHydrogen Peroxide (Osmo Oxy Bleach)
Eco-friendly oxygen-based liquid bleach engineered for color-safe stain removal, brightness enhancement, and thermal-chemical hygiene on both colored and white linens.
LAUNDRYOsmo Clean wash
Osmo Clean Wash — a laundry wash detergent dosed at 6 ml per kilogram of dry linen.
LAUNDRYOsmo Fragsoft
A concentrated liquid conditioner that makes towels soft, stops static shock, speeds up drying, and leaves a fresh flower scent.
LAUNDRYOsmo Hypo Clean
Heavy-duty liquid chlorine bleach designed for high-level destaining and hygiene on white fabrics.
Try it on one site
before you buy a pallet.
We’ll send a 30L Drum pack, the wall chart and a dosing pump, and come back in two weeks to look at the surfaces with you.