Name | Ammonium sulfate |
Synonyms | (NH4)2 SO4 actamaster Wasfcaguite Ammoniasulfate AMMNIUM SULPHATE Ammonium sulfate sulfate, ammonium ammonium sulphate diammonium sulfate AMONIUM SHLPHATE, TECH ammonium sulfate, solution AMMONIUM SULPHATE TECHNOLOGY sulfuric acid, diammonium salt AMMONIUM SULPHATE SOLUTION NO 2 |
CAS | 7783-20-2 |
EINECS | 231-984-1 |
InChI | InChI=1/2H3N.H2O4S/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4) |
InChIKey | BFNBIHQBYMNNAN-UHFFFAOYSA-N |
Molecular Formula | H8N2O4S |
Molar Mass | 132.14 |
Density | 1.77 g/mL at 25 °C (lit.) |
Melting Point | >280 °C (dec.) (lit.) |
Flash Point | 26°C |
Water Solubility | 77 g/100 mL (25 ºC) |
Solubility | H2O: 1M at20°C, clear, colorless |
Vapor Presure | <1 Pa (25 °C) |
Appearance | White crystalline powder |
Specific Gravity | 1.769 |
Color | Yellow to orange |
Odor | Slight odor of ammonia |
Maximum wavelength(λmax) | ['λ: 260 nm Amax: ≤0.037', , 'λ: 280 nm Amax: ≤0.030'] |
Merck | 14,555 |
PH | 5.0-6.0 (25℃, 1M in H2O) |
Storage Condition | room temp |
Stability | Stable. Contact with strong oxidizers may cause fire or explosion. Incompatible with strong bases. |
Sensitive | Easily absorbing moisture |
Refractive Index | n20/D 1.396 |
MDL | MFCD00003391 |
Physical and Chemical Properties | The pure product is a colorless transparent orthorhombic crystal. The relative density is 1.769(50 ℃) The solubility is easily soluble in water (70.6g/100ml water at 0 ℃ and 103.8g/mL water at ℃), the aqueous solution was acidic. Insoluble in alcohol, acetone and ammonia. |
Use | Used as a fertilizer, can also be used as a flux, fabric fire retardant, medicine as a salting out agent, osmotic pressure regulator, etc |
Risk Codes | R10 - Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. R22 - Harmful if swallowed |
Safety Description | S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 1 |
RTECS | BS4500000 |
TSCA | Yes |
HS Code | 31022100 |
Toxicity | LD50 orally in Rabbit: 2840 mg/kg |
Reference Show more | 1. Dehai Li, Xiaoran Zhu, Lu Wang, et al. Salting-out assisted enzymatic extraction of Aralia saponin and its antioxidant activity [J]. Modern food science and technology, 2018, v.34;No.232(12):31 135-142. 2. Zhang Xifeng, Liu Xiaoyan, Ma Yinshan, etc. Saccharification extraction and inhibition of advanced glycation end products of polyphenols from Lycium barbarum L. [J]. Fine Chemicals, 2018, 035(003):395-401. 3. Wei, Yulong, et al. "Exploring the biochemical properties of three polyphenol oxides from blueberry (Vaccinium corymosum L.) no." Food Chemistry 344 (2021): 128678.https://doi.org/10.1016/j.foodchem.2020.128678 4. [IF = 1.718] HUA Li Yue et al."Determination of SOD in black ginger extract and its effect on the liver of rats with type 2 diabetes."Food Sci Tech-Brazil. 2022 Mar;42: |
colorless crystals or translucent orthogonal crystals or white particles. Soluble in water, insoluble in ethanol, acetone. It is decomposed into ammonia and sulfuric acid when heated to 28 °c. The relative density was 1. 77. 0.Imol/L aqueous solution pH 5.5. Reaction with sodium hypochlorite produces explosive nitrogen trichloride. By high heat decomposition, release of toxic smoke. Solubility in water (g/10g H20):70.6(0 °c);76.7(25 °c);103.8(100 °c). This product is non-flammable and irritating.
ammonium sulfate was dissolved in cold water to a relative density of 1.20. An appropriate amount of ammonia water was added to adjust the pH value of the solution to 8-9, and the solution was allowed to stand, and the supernatant was extracted. A small amount of activated carbon was added to the supernatant, and the solution was heated and boiled, and kept at 60 °c. Additional aqueous ammonia was added to a pH of 9 to 10. Let stand and cool to room temperature. After filtration, the filtrate was evaporated to precipitate crystals and dried at 70 ° C. To obtain pure ammonium sulfate.
This product contains (NH4)2S04 should be 99.0% ~ 100.
for the separation of calcium and strontium and the preparation of microbial culture medium.
This product of aqueous solution (1-20) ammonium salt and sulfate identification reaction (General 0301).
rat oral LDso:3000mg/kg. It has a stimulating effect on the eyes, skin, mucous membranes and upper respiratory tract. Staff should be protected. If the skin and eyes are touched, they should be immediately rinsed with flowing water. Products stored in a cool, ventilated warehouse to prevent moisture and rain. Keep away from fire and heat source. It should be stored separately from acids and alkalis, and mixed storage and transportation should not be avoided.
take this product l.Og, add water 20ml to dissolve, according to the law (General 0631),pH value should be 5.0~6.0.
take 2.0g of this product and check it according to law (General rule 0801). Compared with the control solution made of 0.0005% of standard sodium chloride solution, it should not be more concentrated ().
phosphate
take 4. 0g of this product, add 25ml of 0.5mol/L sulfuric acid solution to dissolve, add ammonium molybdate sulfuric acid solution (take 5g of ammonium molybdate, put it in a 100ml measuring flask, add 0.5mol/L sulfuric acid to dissolve and dilute to the scale, shake to obtain) and p-aminophenol sulfate solution (take p-aminophenol sulfate 0.2g, add water 100ml, add sodium bisulfite 20g, stir to dissolve, that's right. In a closed container, can be stored for 1 month) each lml, placed at room temperature for 2 hours, such as color, and standard phosphate solution (precision weighing 105C dry 2 hours of potassium dihydrogen phosphate 0.1433G, in a 1000ml measuring flask, add water to dissolve and dilute to the scale, and shake. Take 10ml, put it in a 100ml measuring flask, dilute it to the scale with water, and shake it well. Each lm l is equivalent to 10 meshes of P04)2 .0ml of the control solution prepared by the same method, and should not be deeper (0.0005%).
take this product l. Add 10% vaporized potassium solution (0.4ml) and 0.1% diphenylamine sulfuric acid solution (0.1 ml) to the test tube, add water (5ml) to dissolve the solution, cool the solution in an ice bath, and slowly add sulfuric acid (5ml) dropwise, shake well, place the test tube in a water bath at 50°C for 15 minutes, and produce a solution of blue and standard nitrate [take potassium nitrate 0.163G, add water to dissolve and dilute to 100ml, shake well, accurately take lml, dilute to 100ml with water, shake well, then get (each lml is equivalent to 10f/gNO3)] 1.0, add 4ml of nitrate-free water, the color comparison after treatment with the same method shall not be deeper (0.001%).
Take 20g of this product, put it in a beaker, add 200ml of water to dissolve it, and heat it on a water bath for 1 hour. While hot, the solution is filtered through a constant-weight G2 vertical melting funnel, and the beaker and funnel are washed with hot water and dried at 105°C to a constant weight. The remaining residue should not exceed 0.005%.
Take 20g of this product, check according to law (General 0841), residue shall not exceed 0.005%.
take 0807g of this product, add water 40ml, hydrochloric acid 2ml, check according to law (General rule 0.0005%), compared with the control solution made of standard iron solution, not deeper ().
take about 1.25g of this product, precision weighing, put it in a 250ml Erlenmeyer flask, add 50ml of water to dissolve, Precision Add 25ml of sodium hydroxide titration solution (lmol/L), put the glass funnel in the mouth of the bottle, boil for 15-20 minutes, until the ammonia in the solution completely escapes (make litmus test paper neutral), let it cool, add 3 drops of Thymol blue indicator solution, titrate with sulfuric acid titrant (0.5mol/L) and correct the results with a blank test. Each 1 ml sulfuric acid titration solution (0.5mol/L) is equivalent to 66.07mg (NH4 )2S04.
pharmaceutical excipients, buffers.
sealed storage.