SODIUM THIOCYANATE
Sodium thiocyanate (NaSCN) is used in concrete as a setting/strength accelerator, mainly in cold weather. Sodium Thiocyanate is an organic sodium salt which is the monosodium salt of thiocyanic acid. It contains a thiocyanate.It is an odorless white solid. Sodium thiocyanate is the chemical compound with the formula NaSCN.
Application
Sodium thiocyanate (NaSCN) is used in concrete as a setting/strength accelerator, mainly in cold weather.
Here are general industry guidelines (not a site-specific prescription):
Recommended Dosage (General)
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0.2% – 1.0% by weight of cement
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Typical effective range: 0.3% – 0.6%
Example
If cement = 100 kg
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Minimum: 200 g (0.2 kg)
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Common use: 300–600 g
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Maximum (do not exceed): 1 kg
How to Use
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Dissolve sodium thiocyanate completely in mixing water
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Then add to the concrete mix
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Ensure uniform mixing
Construction Industry : Sodium thiocyanate is used in the cement industry as an initial strengthening agent. The chemical enhances and strengthens bonding and acts as a grinding helper. Also, the use of sodium Thiocyanate prolongs the lifespan of cement. When preparing concrete, the chemical aidsin accelerating hardening. So, it’s a critical setting accelerator in concrete admixtures.
Technical Specification
| Appearance | Deliquescent colorless crystals |
| Melting point | 287 °C (549 °F; 560 K) |
| Boiling point | 307 °C (585 °F; 580 K) decomposes |
| Density | 1.735 g/cm3 |
| pH | 4,8 at 1.070 g/l at 20,1 °C |