Knowde Enhanced TDS
Identification & Functionality
- Chemical Name
- CASE Ingredients Functions
- Plastics & Elastomers Functions
- Technologies
Features & Benefits
- Labeling Claims
- CASE Ingredients Features
- Materials Features
- Features and Benefits
- The flame-retarding action is based mainly upon the endothermic decomposition of metal hydroxide (heat-sink effect) and simultaneous release of water vapor and CO2. This reaction starts at about 240°C. Securoc® C 10 is used in applications where processing temperatures exceed 200 oC, making ATH unsuitable. The main uses are in PVC and chloroprene wire & cable compounds and PVC/NBR foams.
- Development of Halogen Free Flame Retardant (HFFR) products is one of the on-going high priority areas of the industry. The application of mineral based flame-retardant fillers is one of the options to replace the traditional halogenated FR-products that are in the process of new regulatory measures from the authorities. Hot topics are the persistency of halogenated flame retardants in the environment and the formation of poly-halogenated toxic compounds during thermal degradation of certain halogenated flame-retardants.
- Securoc® C 10 products are utilized as effective and economical flame retardants and/or smoke suppressants. They are not classified as a dangerous substance (DSD and CLP) and do not contain Substances of Very High Concern (SVHC), including their decomposition products from fire.
- Product Background
- Securoc C10 and Securoc D10 products are different blends of two minerals: Huntite and Hydromagnesite
- Huntite particles have a platy morphology and the particles are usually about 1 μm or less in diameter, much smaller than hydromagnesite particles. It has the following chemical formula and thermally decomposes between about 450°C and 750°C in two stages, releasing only carbon dioxide, leaving a solid residue of magnesium oxide and calcium oxide: Mg3Ca(CO3)4 → 3MgO + CaO + 4CO2
- The solid residue is called “char” and is critical to obtain smoke suppression . Char coming from Huntite has better mechanical properties than char generated by the thermal decomposition of hydromagnesite (which only consists of MgO)
- Natural hydromagnesite particles have a “blocky” morphology and once processed the majority of the particles are usually between 1 and 10 μm in diameter depending on the processing.
- It thermally decomposes between about 220°C and 550°C in two stages, initially releasing water then carbon dioxide, leaving a solid residue of magnesium oxide: Mg5(CO3)4(OH)2·4H2O → 5MgO + 4CO2 + 5H2O
Applications & Uses
- Markets
- Applications
- Compatible Polymers & Resins
- Plastics & Elastomers End Uses
Properties
- Physical Form
- Physical Properties
- Particle Size Distribution
- Chemical Analysis
| Value | Units | Test Method / Conditions | |
| Surface Area | 11.0 | m²/g | BET |
| Color (D65;10º, L*) | 97.4 | — | CIELAB Spectrophotometer |
| Color (D65;10º, a*) | 0.0 | — | CIELAB Spectrophotometer |
| Color (D65;10º, b*) | 1.2 | — | CIELAB Spectrophotometer |
| Moisture Content (at 105°C) | 0.5 | % | Moisture analyser |
| pH | 10.0 | — | ISO 787/9 |
| Density | 2.7 | g/cm³ | He pycnometer |
| Loose Apparent Density | 0.4 | g/cm³ | Internal method |
| Hardness | 2 - 3 | — | Mohs’ scale |
| Refractive Index | 1.61 – 1.64 | — | — |
| Thermal Stability | approx. 240 | °C | DSC |
| Value | Units | Test Method / Conditions | |
| Percentage Passing on Individual Sieve (45 μm) | 0.01 | % | Alpine air jet sieved |
| Particle Size (D10) | 1.0 | μm | — |
| Particle Size (D50) | 4.0 | μm | Laser diffraction Sympatec |
| Particle Size (D50) | 0.6 | μm | Sedigraph D 5000 |
| Particle Size (D90) | 10.0 | μm | — |
| Particle Size (D97) | 16.0 | μm | — |
| Value | Units | Test Method / Conditions | |
| Magnesium Oxide (MgO) | 36.0 | wt% | XRF |
| Calcium Oxide (CaO) | 9.9 | wt% | XRF |
| Silicon Dioxide | 0.19 | wt% | XRF |
| Ferric Oxide (Fe₂O₃) | 0.015 | wt% | XRF |
| Fatty acid | 3.0 | wt% | Titrimetric |
| Loss on Ignition (1000°C, 1 hour) | 53.4 | wt% | XRF |
Regulatory & Compliance
- Certifications & Compliance
Packaging & Availability
- Regional Availability