Soluble potash glass
potassium silicate
CAS: 1312-76-1
Molecular Formula: K2O3Si
Soluble potash glass - Names and Identifiers
Soluble potash glass - Physico-chemical Properties
| Molecular Formula | K2O3Si |
| Molar Mass | 154.28 |
| Density | 1.203-1.209 g/cm3 |
| Melting Point | >300°C |
| Boling Point | > 100℃ |
| Water Solubility | Soluble in water. |
| Appearance | Crystalline powder |
| Color | White |
| Merck | 14,7668 |
| Storage Condition | Room Temprature |
| Sensitive | Easily absorbing moisture |
| MDL | MFCD00145152 |
| Physical and Chemical Properties | Character viscous liquid. solubility soluble in water and acid. Insoluble in alcohol. |
| Use | Mainly used in electronic instrument industry (picture tube), detergent, electrode, etc |
Soluble potash glass - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R37/38 - Irritating to respiratory system and skin. R41 - Risk of serious damage to eyes |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S39 - Wear eye / face protection. |
| WGK Germany | 3 |
| TSCA | Yes |
Soluble potash glass - Upstream Downstream Industry
| Raw Materials | Silicon dioxide Potassium carbonate |
Soluble potash glass - Nature
Open Data Verified Data
viscous liquid. Soluble in water and acid, and free of colloidal silicic acid, the higher the potassium content is more soluble. Insoluble in alcohol.
Last Update：2024-01-02 23:10:35
Soluble potash glass - Preparation Method
Open Data Verified Data
melting method: silica sand and caustic potash are mixed in a certain proportion and then added to a melting furnace, and heated to 1200~1400 ℃ with heavy oil or electricity. When a completely molten transparent body is formed, after cooling and solidification from the furnace, it is put into the autoclave and pressurized steam (0. 2MPa) dissolution. The solution was left to stand for clarification to remove impurities, and the clarified solution was concentrated to obtain a potassium silicate finished product.
Last Update：2022-01-01 11:03:42
Soluble potash glass - Introduction
It's hygroscopic. There is a strong alkaline reaction. Decomposition in acid to precipitate silica. Slowly soluble in cold water or almost insoluble in water (depending on its composition), insoluble in ethanol.
Last Update：2022-10-16 17:13:14
Soluble potash glass - Use
Open Data Verified Data
It is used for the production of an electrode, an electrode for welding, a vat dye, and a flame retardant. Used as a fluorescent screen phosphor binder and soap filler.
Last Update：2022-01-01 11:03:41
Soluble potash glass - Safety
Open Data Verified Data
packed in iron or plastic barrels with a net weight of 300kg per barrel. Storage in the general warehouse, or tank storage. The temperature should not be lower than -5 ℃ during storage and transportation. The container must be sealed and protected from rain. It is not allowed to be stored and mixed with acid articles. In case of fire, it can be suppressed by water and various fire-retardants.
Last Update：2022-01-01 11:03:42
Soluble potash glass - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | used for vat dyes, fire retardant, welding electrodes, soap, etc. used for welding electrodes, welding electrodes, vat dyes, fire retardant manufacturing. Used as fluorescent powder binder and soap filler for fluorescent screen. as an adhesive for catalyst and fluorescent screen mainly used for electron beam tube fluorescent screen coating, can also be used as an auxiliary material for manufacturing fluorescent powder and conductive graphite emulsion mainly used in electronic instrument industry (picture tube), detergent, welding rod, etc. protective coating (to prevent "frosting" that is, salt surface crystallization). Catalyst. Adhesive. Used as a detergent in the manufacture of glass and ceramics. The phosphor is glued to the picture tube and coated with an electric welding rod to overcome splashing. |
| production method | melting method: silica sand and caustic potash are mixed in a certain proportion, then added to a melting furnace, heated to 1200~1400 ℃ with heavy oil or electricity, when a completely molten transparent body is formed, cooled and solidified from the furnace, then put into an autoclave, and dissolved by pressurized steam (0.2MPa). Let the solution stand for clarification, remove impurities, and concentrate the clarification solution to obtain potassium silicate finished product. Its 2KOH Nso2 → K2O @ nSiO2 H2O |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:06
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Product Name: potassium silicate Request for quotation
CAS: 1312-76-1
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Raw Materials for Soluble potash glass