Harcryl® 1228 M

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Description

Harcryl® 1228 M is a chemical product manufactured by Harcros Chemicals Inc. It's a free acid phosphate ester of 2-HEMA (hydroxyethylmethacrylate). Here's an overview:

Composition: Harcryl® 1228 M mainly consists of the monoalkyl phosphate ester, making it easily incorporated into various polymer systems. Its hydrophilic nature is due to the ratio of mono-alkyl to dialkyl phosphate.

Inhibition: Inhibited with 400ppm of added hydroquinone.

Functionality: The phosphate functional group promotes adhesion to a variety of surfaces, reducing the need for pretreatments. It enhances corrosion resistance and reduces the need for additional inhibitors. The acrylic backbone allows easy incorporation into many coating systems.

Benefits:

Adhesion Promotion: Reduces the need for pretreatments, saving time and reducing coating layers.
Corrosion Resistance: Enhances corrosion resistance, reducing the need for additional inhibitors.
Versatile Incorporation: Easily integrates into various coating systems.

Usage: Harcryl® 1228 M should not be used as a straight additive. As a monomer, it should be fed separately or in the monomer pre-mix. It has a shelf life of 1 year from the manufacturing date.

Handling & Storage: Should be stored out of sunlight in stainless steel, lined, or plastic vessels. Listed as a DOT corrosive.

Features:

Suitable for concrete, metals (aluminum, galvanized steel, iron-phosphated steel, zinc-phosphated steel, rolled steel, and stainless steel), and polymers (acrylic, styrene/acrylic, VEOVA/acrylic, and polyurethanes).
Contains a reactive methacrylic group and a phosphate active group.
Promotes adhesion and provides corrosion resistance.

Typical Properties:

Appearance: Yellow viscous liquid
Activity: 99% min
Moisture: 1% Max
Acid #1 (mgKOH/gm): 5.5 pH 312
Acid #2 (mgKOH/gm): 9.5 pH 580-590
pH (1% aqueous): 1.5-2.5
Flash Point: >93°C
Specific Gravity @ 25°C: 1.250-1.350

Files

Harcryl-1228-M-TDS.pdf View

Application

Paints & Coatings

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Hazards Identification
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- Hazard Statements:
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WALOCEL™ CRT 10000 G Sodium Carboxymethylcellulose is a specific type of sodium carboxymethylcellulose (CMC) produced by The Dow Chemical Company. Here's a detailed overview based on the provided sales specification:
Product Overview:
- Product Name: WALOCEL™ CRT 10000 G
- Chemical Name: Sodium Carboxymethylcellulose
- Specification Number: 000000127502
- Previous Specified Material: 00160302
- Trademark: WALOCEL™ (Trademark of The Dow Chemical Company)
Specifications and Testing Requirements:
1. Active Content (Dry Basis):
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  - Method: CE-55.4
  - Test Frequency: Audit basis
2. Substitution Degree:
  - Range: 0.82 — 0.95
  - Method: CE-28.4
3. Moisture Content (As Packaged):
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  - Method: CE-7.1
4. pH Value (1% Aqueous Solution):
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  - Method: CE-8.1
5. Total Salt Content (Dry Basis):
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  - Method: CE-15.4
  - Test Frequency: Audit basis
6. Viscosity (Brookfield, LVT, SP.3, 30 RPM, 1% Aqueous Solution, Dry Basis, 25°C):
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  - Method: CE-5.15
Product Characteristics:
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- Degree of Substitution: Refers to the extent to which the cellulose molecule has been substituted with carboxymethyl groups. This affects the solubility and viscosity.
- Moisture Content: The amount of water present in the product. This can affect the product’s handling and performance.
- pH Value: Measures the acidity or alkalinity of a 1% aqueous solution of the product.
- Total Salt Content: Indicates the amount of salt present, which can influence the viscosity and stability of the product.
- Viscosity: A measure of the product's thickness or resistance to flow in an aqueous solution. This is important for its functionality in various applications.
Usage and Safety:
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Product Overview:
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- Chemical Formula: C3H7O[CH2(CH)CH3O]2H (Major isomer)
- CAS Number: 29911-27-1
Description:
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Physical Properties:
- Molecular Weight: 176.2 g/mol
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- Flash Point (Setaflash Closed Cup): 88°C (190°F)
- Freezing Point: <-75°C (<-103°F)
- Vapor Pressure at 20°C: 0.08 mmHg (0.11 mbar)
- Specific Gravity (25/25°C): 0.919
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  - @ 25°C: 0.916 g/cm³ (7.65 lb/gal)
- Viscosity at 25°C: 11.4 cP (mPa•s)
- Surface Tension at 25°C: 27.8 dynes/cm (mN/m)
- Specific Heat at 25°C: 1.94 J/g/°C
- Heat of Vaporization at Normal Boiling Point: 265 J/g
- Net Heat of Combustion at 25°C: 29.7 kJ/g
- Autoignition Temperature: 205°C (401°F)
- Evaporation Rate:
  - n-Butyl Acetate = 1.0: 0.014
  - Diethyl Ether = 1.0: 903
- Solubility at 25°C:
  - Solvent in Water: 17.2 g/100 g (15 wt%)
  - Water in Solvent: 22.5 g/100 g (18.5 wt%)
Hansen Solubility Parameters:
- Dispersion (d): 15.0 (J/cm³)^(1/2)
- Polar (p): 3 (J/cm³)^(1/2)
- Hydrogen Bonding (h): 9.6 (J/cm³)^(1/2)
Flammable Limits (Vol.% in Air):
- Lower: 0.68%
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Product Overview:
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- Manufacturer: Evonik Operations GmbH
Description:
TEGO® Airex 902 W is a highly effective and compatible deaerator emulsion based on polyether siloxane technology. It is particularly effective against both micro-foam and macro-foam.
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Harcryl® 1228 M

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Manufacturer

Main Actions

Description

Files

Categories

Application

Add a review

Leave a Reply · Cancel reply

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