Twelve water sulfate potassium, also known as: alum, alum, potassium alum, potassium aluminum alum, potassium alum, is a sulfur of potassium and aluminum sulfate with crystal water. The colorless cubic crystal, the appearance is often an octagonal body, or a polycase is formed with the cube, diamond duodang , sometimes the {111} surface is attached to the container wall and looks like a six -square plate shape, which belongs to alum alum. Salt, there are glass . The density is 1.757g/cm3, and the melting point is 92.5 ° C. At 64.5 ℃, 9 molecular crystalline water is lost, and at 200 ° C In the 12 molecular crystal water, dissolved in water, and insoluble in ethanol. Alum is sour, cold, toxic. Therefore, there are antibacterial functions, convergence, etc., can be used as Chinese medicine. Alum can also be used to prepare aluminum salt, magotate, paint, tannin , clarification agent, media dye, papermaking, waterproofing agent, etc. Molecular measurement: 474.3247 Chemical formula: KAL (SO4) 2 · 12H2O
The melting point 92 ° C boiling point 200 ° C water solution: soluble (solubility: about 5.90g)
Twelve water sulfate potassium, also known as: alum, alum, potassium alum, potassium aluminum alum, potassium alum, is a sulfur of potassium and aluminum sulfate with crystal water. The colorless cubic crystal, the appearance is often an octagonal body, or a polycase is formed with the cube, diamond duodang , sometimes the {111} surface is attached to the container wall and looks like a six -square plate shape, which belongs to alum alum. Salt, there are glass . The density is 1.757g/cm3, and the melting point is 92.5 ° C. At 64.5 ℃, 9 molecular crystalline water is lost, and at 200 ° C In the 12 molecular crystal water, dissolved in water, and insoluble in ethanol. Alum is sour, cold, toxic. Therefore, there are antibacterial functions, convergence, etc., can be used as Chinese medicine. Alum can also be used to prepare aluminum salt, magotate, paint, tannin , clarification agent, media dye, papermaking, waterproofing agent, etc. Molecular weight: 474.3247 Chemical formula: KAL (SO4) 2 · 12H2O
KAL (SO4) 2 Chinese names of aluminum sulfate potassium; alum; potassium alum; alum; fiber potassium alum. The aluminum sulfate potassium, colorless crystals or powder. No smell, slightly sweet and astringent, convergence. Lost crystal water in the dry air stroke, and dissolved in the humid air. It is easy to dissolve in glycerin, can solve water, and the aqueous solution is acidic reaction. After hydrolysis, there will be aluminum hydroxide glue. Insperlble in alcohol and acetone. The melting point is 92.5 ° C. 60-65 ° C lost 9 molecular water when the sulfuric acid was dry. At 200 ° C, the twelve crystal water was completely lost, and the higher temperature decomposed sulfur dioxide. [Precautions] 1. Use of precautions . This product is commonly used as a acid agent in a composite puff agent, and is combined with sodium bicarbonate. The dough stick containing aluminum sulfate potassium The fritters containing aluminum sulfate and potassium ⑵ The amount of this product can make food astringent, and even cause vomiting and diarrhea. After investigation, aluminum is not good for the human body, so you should pay attention to control. ) The thick solution of this product is corrosive. 2. The scope and amount of usage . China "Sanitary Standards for Food Additives" (GB2760-2014) stipulates that it can be fried food, aquatic products, soy products, flexible biscuits, puffed foods, puffed foods In the shrimp film, it is used in moderation according to production. The residue of aluminum shall be less than 100mg/kg of the aluminum sample.
Twelve water sulfate potassium, also known as: alum, alum, potassium alum, potassium aluminum alum, potassium alum, is a sulfur
of potassium and aluminum sulfate with crystal water. The colorless cubic crystal, the appearance is often an octagonal body, or a polycase is formed with the cube, diamond duodang
, sometimes the {111} surface is attached to the container wall and looks like a six -square plate shape, which belongs to alum alum. Salt, there are glass
. The density is 1.757g/cm3, and the melting point is 92.5 ° C. At 64.5 ℃, 9 molecular crystalline water is lost, and at 200 ° C
In the 12 molecular crystal water, dissolved in water, and insoluble in ethanol. Alum is sour, cold, toxic. Therefore, there are antibacterial
functions, convergence, etc., can be used as Chinese medicine. Alum can also be used to prepare aluminum salt, magotate, paint, tannin
, clarification agent, media dye, papermaking, waterproofing agent, etc.
Molecular measurement: 474.3247 Chemical formula: KAL (SO4) 2 · 12H2O
The melting point 92 ° C boiling point 200 ° C water solution: soluble (solubility: about 5.90g)
Twelve water sulfate potassium, also known as: alum, alum, potassium alum, potassium aluminum alum, potassium alum, is a sulfur
of potassium and aluminum sulfate with crystal water. The colorless cubic crystal, the appearance is often an octagonal body, or a polycase is formed with the cube, diamond duodang
, sometimes the {111} surface is attached to the container wall and looks like a six -square plate shape, which belongs to alum alum. Salt, there are glass
. The density is 1.757g/cm3, and the melting point is 92.5 ° C. At 64.5 ℃, 9 molecular crystalline water is lost, and at 200 ° C
In the 12 molecular crystal water, dissolved in water, and insoluble in ethanol. Alum is sour, cold, toxic. Therefore, there are antibacterial
functions, convergence, etc., can be used as Chinese medicine. Alum can also be used to prepare aluminum salt, magotate, paint, tannin
, clarification agent, media dye, papermaking, waterproofing agent, etc.
Molecular weight: 474.3247 Chemical formula: KAL (SO4) 2 · 12H2O
KAL (SO4) 2 Chinese names of aluminum sulfate potassium; alum; potassium alum; alum; fiber potassium alum.
The aluminum sulfate potassium, colorless crystals or powder. No smell, slightly sweet and astringent, convergence. Lost crystal water in the dry air stroke, and dissolved in the humid air. It is easy to dissolve in glycerin, can solve water, and the aqueous solution is acidic reaction. After hydrolysis, there will be aluminum hydroxide glue. Insperlble in alcohol and acetone. The melting point is 92.5 ° C. 60-65 ° C lost 9 molecular water when the sulfuric acid was dry. At 200 ° C, the twelve crystal water was completely lost, and the higher temperature decomposed sulfur dioxide.
[Precautions]
1. Use of precautions
. This product is commonly used as a acid agent in a composite puff agent, and is combined with sodium bicarbonate.
The dough stick containing aluminum sulfate potassium
The fritters containing aluminum sulfate and potassium
⑵ The amount of this product can make food astringent, and even cause vomiting and diarrhea. After investigation, aluminum is not good for the human body, so you should pay attention to control.
) The thick solution of this product is corrosive.
2. The scope and amount of usage
. China "Sanitary Standards for Food Additives" (GB2760-2014) stipulates that it can be fried food, aquatic products, soy products, flexible biscuits, puffed foods, puffed foods In the shrimp film, it is used in moderation according to production. The residue of aluminum shall be less than 100mg/kg of the aluminum sample.