VITEC

Vitec® 5100

Antiscalant

Vitec® 5100 is a liquid antiscalant/dispersant blended to inhibit scale and disperse colloidal particles in cellulose acetate and thinfilm membrane separation systems. The formulation has been certified by the National Sanitation Foundation (NSF) under ANSI/NSF Standard 60 for use in producing potable water.

This formulation is its compatible with Avista Technologies organic coagulants.

Performance:

Vitec® 5100 antiscalant offers a variety of performance and application benefits:

• Powerful inhibitor against a variety scales including:

  CaCO3	CCPP > 900 (LSI >2.8)
  CaSO4	3.0 x Ksp
  BaSO4	105 x Ksp
  SrSO4	20 x Ksp
  CaF	1000 x Ksp
  SiO2	120 ppm

• Highly effective at low dose rates in a wide range of feedwater types and pH ranges.
• Compatible with polyelectrolyes.
• Provides both scale and inorganic fouling control.
• Compatible with all membrane types.

Application:

Optimum Vitec® 5100 performance is achieved when the chemical is injected upstream of the membrane system and where possible of cartridge filters.

Dosing Guidelines:

The typical dosage range is between 2 to 10 ppm. A site-specific dose can be determined using th Avista Advisor computer program. Please contact the Avista customer service department for site specific dosing instructions.

Dilution:

If dilution is required, Vitec® 5100 should be diluted with demineralized water or RO permeate. If neither of these water sources is available, softened water may be substituted. The dilution for Vitec® 5100 should not exceed 10% by weight.

Packaging and Storage:

Standard regional pack sizes are listed below. Custom packaging can be provided worldwide to meet customer needs. Information on drumless or bulk tanker delivery is available on request.

Specifications Appearance: Clear yellow liquid pH (2% solution): 5.0 — 6.5 Specific Gravity@20°C: 1.1 ± 0.05

Packaging Formats Americas EMEA Pails 45 lbs 23 kg Drums 500 lbs 230 kg IBC's (totebins) 2500 lbs 1100 kg

DRINKING WATER TREATMENT ADDITIVES CLASSIFIED BY NSF INTERNATIONAL TO NSF/ANSI 60 ON SEPTEMBER 2004 AS STANDARD DRINKING WATER TREATMENT CHEMICAL FOR USE IN REVERSE OSMOSIS SYSTEMS AT A MAXIMUM LEVEL OF 7 mg/l.

08/10