STR 100 ACID CONCENTRATE FOR CIP SANITIZER

STR 100 Description — Acid Concentrate for CIP Sanitizer (Dual-Function Formulation Base)

At Quimiconsult we manufacture STR 100, an acid concentrate for producing dual-function CIP (Clean in Place) sanitizers. It is a formulation product (raw material), not a ready-to-use sanitizer: it is designed for manufacturers of industrial cleaning products —and for plants that formulate their own solutions on site— to make their CIP acid sanitizer by combining STR 100 with nitric acid and/or sulfuric acid. Its proprietary blend of fatty acids and low-foam surfactants provides the biocidal and descaling fraction of the finished product: in the recirculation phase, it removes scale and eliminates 100% of the remaining microorganisms, with biocidal action in seconds that penetrates even microcracks and coupling parts.

STR 100 is a colorless liquid with a minimum acidity of 25%, a pH of 1.50 to 3.50 (in a 1% solution) and a density of 0.95 to 1.50, with a low-foam profile suitable for recirculating CIP systems. With it, the formulator obtains the surfactant-biocide component of a dual-function CIP sanitizer (the same principle as STR Sanitizer, Quimiconsult's finished, ready-to-use version), and completes it with the mineral acid fraction that best suits their process and target cost.

As direct manufacturers from our plant in San Nicolás de los Garza, Nuevo León, we control every stage of production and offer formulation support to turn STR 100 into a finished CIP sanitizer. For those looking for an acid concentrate for CIP sanitizer, a formulation base for recirculating acid sanitizers, or a domestically manufactured dual-function CIP sanitizer concentrate, STR 100 is the technical answer within the Quimiconsult catalog.

STR 100 (formulation concentrate) vs. STR Sanitizer (finished product)

This is the key point for using STR 100 correctly:

• STR 100 — concentrate / formulation raw material: provides the blend of fatty acids and low-foam surfactants (the biocidal and descaling fraction). It is not applied directly to surfaces: it is combined with nitric and/or sulfuric acid to create the finished CIP sanitizer. It is intended for manufacturers and formulators of industrial cleaning products and for plants that produce their own sanitizer.
• STR Sanitizer — finished ready-to-use (RTU) product: already formulated and certified, for direct application in the end user's CIP system (food, dairy and beverage plants), at 1.5 ml/L, 4 – 10 min, 30 – 40 °C.

In short: STR 100 is for those who manufacture the sanitizer; STR Sanitizer is for those who apply it. Both share the same dual-function chemistry (descaling + sanitizing) in the acid recirculation.

Dual function: descaling and biocidal action in the same cycle

The acid CIP cycle performs two functions that are usually addressed separately: removal of mineral scale and microbiological sanitization. The chemistry STR 100 contributes to the finished product covers both at the same time:

• Descaling action: the acid fraction reacts with the calcium and magnesium carbonates, calcium phosphates and oxalate deposits that form in pasteurizers, heat exchangers, silos and piping, converting them into soluble salts that the rinse carries away —penetrating microcracks, where scale concentrates.
• Biocidal action: the short-chain surfactants act on the microorganisms remaining from the previous alkaline cycle, with biocidal action in seconds that reaches surface irregularities a surface-applied sanitizer cannot reach.
• Low foam for recirculation: its low-foam profile is a non-negotiable requirement for CIP: it prevents hydrodynamic interference, pressure drop at the nozzles and cavitation in the closed-loop pumps.

STR 100 technical specifications

Description:
Acid sanitizer concentrate for dual-function CIP formulation

Appearance:
Colorless liquid

Odor:
Characteristic

Total acidity:
Minimum 25%

pH (1.0% solution):
1.50 – 3.50

Density:
0.95 – 1.50

Active ingredient:
Proprietary blend of fatty acids and low-foam surfactants

Foam:
Low (for recirculating CIP systems)

Use:
Formulation base: combine with nitric and/or sulfuric acid

Finished product application:
1.5 ml/L, 4 – 10 min, 30 – 40 °C

Packaging:
200 kg drum and 1,000 kg tote (smaller sizes and samples on request)

CAS number:
N/A (mixture)

Quimiconsult SKU:
INMPQ062

The relatively wide density range (0.95 – 1.50) reflects the flexibility of the formulation; the exact value for each batch is stated on the Certificate of Analysis (CoA). Every delivery comes with its Technical Data Sheet (TDS) and Safety Data Sheet (SDS).

STR 100 as a formulation base: how it becomes a complete CIP sanitizer

STR 100 is not applied directly as a ready-to-use sanitizer. It is the concentrate that provides the fatty acid and biocidal surfactant fraction of an acid CIP sanitizer formulation, which is completed with nitric acid, sulfuric acid or a mixture of both depending on process requirements. This two-component formulation architecture offers concrete advantages to the sanitizer manufacturer:

• Control of total acidity: the formulator adjusts the final acidity of the sanitizer by changing the proportion of mineral acid, without altering the concentration of the biocidal and surfactant component provided by STR 100.
• Choice of acid profile by application: nitric acid is usually preferred in stainless steel systems (304 and 316L) because of its lower risk of corrosion and its passivating effect on the steel's protective layer; sulfuric acid provides greater acidity per unit volume at a lower cost. STR 100 is compatible with both and with their mixtures.
• Cost-per-liter optimization: by adjusting the ratio of STR 100 to mineral acid, the formulator finds the balance between raw material cost and finished product efficacy.
• Stability of the biocidal component: keeping the surfactant-biocide component (STR 100) separate from the mineral acid until formulation helps preserve its performance.

The Quimiconsult technical team can support the formulation design: selection of the mineral acid, blending ratios, compatibility with system materials and validation of the biocidal efficacy of the finished product.

Systems and equipment where the sanitizer formulated with STR 100 is applied

The CIP sanitizer formulated with STR 100 is indicated for the same applications as the finished product:

Pasteurizers and plate heat exchangers (dairy industry)

Pasteurizers (HTST, UHT and batch) and plate heat exchangers accumulate calcium phosphate and carbonate together with heat-denatured protein. The acid sanitizer formulated with STR 100 dissolves these deposits during acid recirculation, restores heat transfer and eliminates the microorganisms that survive the alkaline cycle, penetrating surface irregularities.

Silos and storage tanks (food and beverage)

Silos and tanks accumulate mineral deposits and biofilms on their internal surfaces. Applied through the CIP system's spray balls, the formulated sanitizer covers the internal surface and acts on deposits and microorganisms in a single recirculation cycle.

Piping, valves and process lines

In process lines with changes of direction, valves and hard-to-reach points, penetration into microcracks is where STR 100's contribution pays off most: it reaches the gaskets, valve seats and welds where biofilms form, when recirculated at a good flow velocity.

Stainless steel cooling and storage systems

Chilled water systems, chillers and cooling exchangers accumulate calcium and magnesium carbonate and harbor psychrotrophic microorganisms. The sanitizer formulated with STR 100, in periodic cycles of the CIP program, keeps these surfaces free of deposits and controls the microbial load.

Directions for use: from formulation to application

Formulation (manufacturer): combine STR 100 with nitric and/or sulfuric acid to create the finished acid CIP sanitizer, adjusting the acidity and acid profile to the target process. The Quimiconsult technical team assists with ratios and efficacy testing.

Application (finished product): after the alkaline recirculation and its rinse, apply 1.5 ml/L of the finished product over the total water volume of the system, manually or automatically, for 4 to 10 minutes at 30 – 40 °C.

STR 100 certifications, containers and packaging

STR 100 is manufactured to serve as a base for food grade CIP sanitizers, with FDA Approved documentation on its containers (bilingual ES-EN labeling), which facilitates its use in export operations and in plants subject to international audits (SQF, BRC, FSSC 22000).

Note on NSF and Kosher certifications: this information must be confirmed before publishing. The current specification sheet on your site shows "Certifications: N/A" for STR 100, while the brief indicates NSF and Kosher. See the clarification at the end; I will adjust the wording based on what you confirm.

Packaging (per TDS): 20 kg jerrycan, 200 kg drum and 1,000 kg tote (container); in addition, according to the site record, there are 20 kg and 50 kg pail sizes and a sample for formulation development, all in FDA Approved ES-EN containers.

STR 100 safety, handling and storage

STR 100 is an acid concentrate (minimum total acidity 25%; pH 1.50 – 3.50 in a 1% solution) that must be handled according to the recommendations of its current Safety Data Sheet (SDS). The use of acid-resistant gloves, eye protection (safety glasses or face shield) and protective clothing is recommended; in case of contact with skin or eyes, rinse with plenty of water for several minutes and seek medical attention.

Incompatibilities: do not mix directly with strong bases (NaOH, KOH) or concentrated alkalis —abrupt neutralization generates heat and splashing— or with chlorinated alkaline products. When formulating with nitric or sulfuric acid, follow the recommended procedure and mixing order, with appropriate protective equipment, given the energy released when mixing concentrated acids. See Section 10 of the current SDS for the complete reactivity and incompatibility classification.

Storage: at room temperature, in the original closed container, in a cool, dry, ventilated place, away from heat sources and direct sunlight, and separated from incompatible materials. Store in high-density polyethylene (HDPE) containers; avoid carbon steel for the concentrate. Classified and labeled in accordance with the Globally Harmonized System (GHS); the complete classification, H statements and precautionary statements must be taken from the current SDS.

Quimiconsult formulation support: from concentrate to finished CIP sanitizer

STR 100 is a raw material for formulating CIP sanitizers, not a final product: its success depends on the formulation being correctly designed for the system and for the type of scale and microorganisms in the process. The Quimiconsult team in San Nicolás de los Garza, N.L., can support this process: selection of the complementary mineral acid (nitric, sulfuric or a mixture), determination of ratios, evaluation of compatibility with CIP system materials (stainless steel, rubbers, plastics) and validation of the biocidal efficacy of the formulated sanitizer through microbiological testing. We can also develop STR 100 variants with different profiles if the application requires it.

To start the formulation process or request a quote for STR 100 as a raw material, call us at +52 (81) 8105 0063.

STR 100 compared with other options

STR 100 (formulation concentrate) vs. STR Sanitizer (finished product): STR 100 is the raw material the manufacturer incorporates into its own formulation together with mineral acids; STR Sanitizer is the finished product ready to apply in the end user's CIP system. Different links in the chain: one for formulators, the other for plants.

STR 100 vs. a pure mineral acid (nitric or sulfuric alone): a pure acid only descales; STR 100 also provides the low-foam surfactant fraction with biocidal action and penetration into microcracks. That is why it is combined with the mineral acid: STR 100 provides the biocidal, low-foam function; the mineral acid provides the descaling power and total acidity.

STR 100 vs. imported concentrates: it guarantees a specified profile, in-house manufacturing with batch-to-batch control and CoA, FDA Approved containers, direct formulation support and domestic availability, without the logistical dependence of an imported product.

STR 100 frequently asked questions

Is STR 100 used directly, or does it need to be formulated first?

It is not applied directly to surfaces. It is a formulation concentrate that is combined with nitric and/or sulfuric acid to prepare the finished acid CIP sanitizer. The exact ratio depends on the target total acidity, the chosen mineral acid and the application profile; our technical team assists with the formulation design.

What ingredients does STR 100 contain?

Its active ingredient is a proprietary blend of fatty acids and low-foam surfactants, which provides the low-foam biocidal and descaling action. For the finished sanitizer, this base is combined with nitric and/or sulfuric acid, which provide the mineral acidity and descaling power.

What is the difference between STR 100 and STR Sanitizer?

STR 100 is the formulation raw material (for sanitizer manufacturers); STR Sanitizer is the finished ready-to-use product (for plants that apply it directly in their CIP system). They share the same dual-function chemistry.

Which mineral acids is it compatible with?

Nitric acid and sulfuric acid, the two most common in acid CIP sanitizers. Nitric acid is usually preferred for stainless steel because it is less aggressive and has a passivating effect; sulfuric acid provides more acidity per volume at a lower cost. STR 100 works with both and with their mixtures.

At what dosage is the finished product applied?

The formulated sanitizer is applied at 1.5 ml/L over the total water volume of the system, for 4 to 10 minutes, at 30 – 40 °C, after the alkaline recirculation and rinse.

What packaging sizes are available?

200 kg drum and 1,000 kg tote (per TDS); in addition, according to the site record, 20 and 50 kg pails and a development sample, in FDA Approved ES-EN containers. Available from Monterrey, Nuevo León, with shipping throughout Mexico.

Where can I buy STR 100 in Mexico?

At Quimiconsult we are direct manufacturers, with inventory in Monterrey, Nuevo León, and shipping throughout Mexico. Contact us at +52 (81) 8105 0063 for a volume quote, a technical sample or to start the formulation process.

Other names and terms related to STR 100

STR 100 is a Quimiconsult brand. It is identified in abbreviated form as STR 100, STR-100 or CIP 100, and in purchase requests, specification sheets and online searches it is commonly referenced by functional descriptions:

STR 100, STR-100, CIP 100, acid concentrate, concentrated acid, CIP sanitizer concentrate, concentrated CIP sanitizer, acid concentrate for CIP sanitizer, formulation base for CIP sanitizer, dual-function CIP sanitizer concentrate, raw material for CIP sanitizer, fatty acid and low-foam surfactant concentrate, CIP sanitizer, STR 100 pH, STR 100 Quimiconsult, CIP sanitizer concentrate Monterrey, CIP sanitizer concentrate manufacturer Mexico.

These variations help manufacturers of industrial cleaning products, formulators, purchasing managers and technical managers identify STR 100 as Quimiconsult's in-house manufactured formulation concentrate for CIP sanitizers.

Why buy STR 100 from Quimiconsult?

Quimiconsult is a Mexican company with more than 30 years of experience in specialty chemicals and a direct manufacturer of a complete family of detergents, sanitizers and concentrates for industrial and food cleaning. When you buy STR 100 from Quimiconsult you get:

• An acid formulation concentrate with a dual-function (descaling + biocidal) blend of fatty acids and low-foam surfactants, with a specified profile and a CoA for every batch.
• Formulation support to turn STR 100 into your finished CIP sanitizer: mineral acid selection, ratios, material compatibility and efficacy validation.
• FDA Approved (ES-EN) containers for export operations and international audits.
• In-house manufacturing with batch-to-batch control, availability from Monterrey, Nuevo León, and shipping throughout Mexico.
• The complete product family (STR 100 concentrate, finished STR Sanitizer, and the CIP program of alkaline and acid detergents) from a single domestic supplier.

Are you a manufacturer of industrial cleaning products, or do you want to formulate your own CIP sanitizer? Contact us at +52 (81) 8105 0063: we will analyze your application and support you through formulation based on STR 100.

Related products

STR 100 is part of Quimiconsult's industrial cleaning and sanitation portfolio. Related products within the line and the CIP program:

• STR Sanitizer — the finished ready-to-use product based on the same dual-function chemistry; for plants that apply the sanitizer directly in their CIP system.
• CLK Premium — chlorinated alkaline detergent for the alkaline CIP cycle (dairy and protein-rich soils).
• Lactac LF — low-foam acid detergent for the acid CIP cycle.
• Anticel Peracetic Acid (5% / 15%) — broad-spectrum oxidizing sanitizer based on peracetic acid, for disinfecting surfaces and equipment.

Looking to formulate your own CIP sanitizer or put together a complete cleaning and sanitation program? Contact us and we will review the options in our catalog for your application.