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NOVATEST Confezione Fenolftaleina

Chemical indicator of carbonation of concrete

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NOVATEST

Falconara Marittima, Italy
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Overview
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Name of product/article

Confezione Fenolftaleina

Type

Chemical indicator of carbonation of concrete

Design Year
2012

@ Import url (http://admin.archipassport.com/Load.ashx?type=style&file=SyntaxHighlighter.css) @ import url (http://www.archiproducts.com/styles/productssheetsections.css); @ import url (/ styles / editors / rteditor.css); A cement mix properly proportioned presents a strongly alkaline (pH13) that inhibits oxidation reactions of the reinforcement. The conglomerate, however, is permeable to which carbon dioxide can diffuse through it by reacting with substances that meets giving rise to the phenomenon of carbonation (environment pH9) and dimensional variations that lead to the cracking. The cracking promotes the penetration of the carbon dioxide is both water vapor which in turn triggers the oxidation process of the rebars. The measure of the depth of carbonation can be determined by spraying on the surface of the cement mix a solution of 1% phenolphthalein in ethanol. The test may be carried out directly on the structural element (removing, for example, the concrete cover in an edge) or on a cylindrical specimen extracted by coring element itself.
Normative reference: UNI 9944:1992: Corrosion and protection of concrete reinforcement. Determination of carbonation depth and profile of penetration of chloride ions in the concrete.

Further info from manufacturer on Confezione Fenolftaleina
Further details
DESCRIPTION
A properly proportioned concrete has a strong alkaline environment (pH13), which inhibits the oxidation of the reinforcement.
The conglomerate, however, is permeable to which carbon dioxide can diffuse through it reacts with the substances it encounters, giving rise to the phenomenon of carbonation (pH9 environment) and changes dimensional determination of the breakthrough.
Breakthrough promotes the penetration of both carbon dioxide and water vapor priming to turn the process of oxidation of the reinforcement bars.
The measure of the depth of carbonation can be determined by spraying the surface of the cement mix a solution of 1% phenolphthalein in ethyl alcohol.
The test can be performed directly on the structural (removed, for example, concrete cover in a corner) or on a cylindrical specimen extracted by coring element itself.
Normative reference:
UNI 9944:1992: Corrosion of concrete and armor. Determination of the depth of carbonation and the profile of penetration of chloride ions in concrete.
Packages available:
- 100 ml (4 pcs.)
- 1 lt
Complete with dispenser, sprayer and cap evaporation.
TECHNICAL FEATURES
Product details:
- Molecular formula: C20 H14 O4 Alcohol solution
- Trade name: Phenolphthalein 1%
- MSDS number: CH0448
- Application of the substance / the preparation: Laboratory chemicals
- Hazard: Toxic
- Information concerning particular hazards for human and environment:
- R45 May cause cancer
- R10 Flammable
- R68 Possible risk of irreversible effects
- Classification system: The product has to be labeled due to the calculation procedure of the "General EU Classification of Substances", Dir. 67/548 / EC in the latest valid version, and of the "General Community on the classification of preparations ", Dir. 1999/45 / EC, in the latest valid version.
Prevention:
- P210 Keep away from heat / sparks / open flames / hot surfaces
- P241 Use electrical / ventilating / lighting / explosion-proof
- P280 Wear protective gloves / protective clothing / eye protection and face
- Disposal: P501 Dispose of contents / container in accordance with local / regional / national / international
Physical and chemical properties:
- Molecular weight:
- Form: Liquid
- Color: Colorless
- Smell: Sweetish
- Change in condition:
- Melting point / Melting range: undetermined
- Boiling point / Boiling range: 78 ° C
- Flash point: 40 ° C
- ignition temperature: 425 ° C
- Self-igniting: Not applicable
- Danger of explosion: Product is not explosive, however, formation of mixtures of explosive air / vapor
Solubility in / Miscibility with:
- Water: Soluble
- Organic solvents: 50%
- Solids content: 1%
Stability and reactivity:
- Decomposition and reactivity: No decomposition if used according to specifications.
- Conditions to avoid: Heat, flames and sparks
- Dangerous reactions No dangerous reactions known
- Hazardous decomposition products: Carbon monoxide, carbon dioxide
- Primary irritant effect:
- on the skin: May be fatal if absorbed through the skin
- on the eye: Irritating
- Ingestion: May be fatal if swallowed
- Inhalation: Inhalation may result in spasm, inflammation and edema of the larynx and brocchi, chemical pneumonitis and pulmonary edema.
Material is extremely destructive to the tissue of the mucous membranes and upper respiratory tract.
- Additional toxicological information: Carcinogenic
- Recommendation: Must not be disposed of with household waste. Do not empty into drains.
Recycle if possible or contact a for industrial waste disposal.

Test on Concrete Collection by NOVATEST
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