sulfuric acid, diammonium salt

sulfuric acid, diammonium salt - Names and Identifiers

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

sulfuric acid, diammonium salt - Physico-chemical Properties

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

sulfuric acid, diammonium salt - Risk and Safety

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

sulfuric acid, diammonium salt - Upstream Downstream Industry

Raw Materials	Ammonium hydroxide Sulfuric acid Ammonia Cyclohexanone oxime Sulphur Sulfuric acid Sulfuric acid Ammonia
Downstream Products	Potassium persulfate Ammonium persulfate Potassium Sulphate Sulfuric acid, aluminum ammonium salt (2:1:1) Sulfuric Acid, Ammonium Nickel Salt Ammonium magnesium sulfate Zirconium Carbonate Hydrogen peroxide

sulfuric acid, diammonium salt - Reference

Reference

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:

sulfuric acid, diammonium salt - Nature

Open Data Verified Data

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.

Last Update：2024-01-02 23:10:35

sulfuric acid, diammonium salt - Preparation Method

Open Data Verified Data

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.

Last Update：2022-01-01 09:00:42

sulfuric acid, diammonium salt - Standard

Authoritative Data Verified Data

This product contains (NH4)2S04 should be 99.0% ~ 100.

Last Update：2024-01-02 23:10:35

sulfuric acid, diammonium salt - Trait

Authoritative Data Verified Data

This product is colorless or white crystals or granules.
This product is soluble in water and insoluble in ethanol.

Last Update：2022-01-01 11:26:44

sulfuric acid, diammonium salt - Introduction

Specific gravity 1.769. Decomposition at 235 ℃. Easily soluble in water, the aqueous solution is acidic, insoluble in ethanol and acetone. In humid air, it will absorb water and agglomate, and interact with alkalis to release ammonia.. When burning, it is decomposed into ammonia and sulfuric acid.

Last Update：2022-10-16 17:28:44

sulfuric acid, diammonium salt - Use

Open Data Verified Data

for the separation of calcium and strontium and the preparation of microbial culture medium.

Last Update：2022-01-01 09:00:42

sulfuric acid, diammonium salt - Differential diagnosis

Authoritative Data Verified Data

This product of aqueous solution (1-20) ammonium salt and sulfate identification reaction (General 0301).

Last Update：2022-01-01 11:26:44

sulfuric acid, diammonium salt - Safety

Open Data Verified Data

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.

Last Update：2022-01-01 09:00:42

sulfuric acid, diammonium salt - Exam

Authoritative Data Verified Data

acidity

take this product l.Og, add water 20ml to dissolve, according to the law (General 0631),pH value should be 5.0~6.0.

chloride

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%).

nitrate

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%).

insoluble in water

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%.

ignition residue

Take 20g of this product, check according to law (General 0841), residue shall not exceed 0.005%.

Iron Salt

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 ().

Last Update：2022-01-01 11:26:45

sulfuric acid, diammonium salt - Content determination

Authoritative Data Verified Data

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.

Last Update：2022-01-01 11:26:46

sulfuric acid, diammonium salt - Category

Authoritative Data Verified Data

pharmaceutical excipients, buffers.

Last Update：2022-01-01 11:26:46

sulfuric acid, diammonium salt - Storage

Authoritative Data Verified Data

sealed storage.

Last Update：2022-01-01 11:26:46

sulfuric acid, diammonium salt - Reference Information

pH range of acid-base indicator discoloration	5 - 6
LogP	-5.1 at 25℃
EPA chemical substance information	information provided by: ofmpeb.epa.gov (external link)
nitrogen fertilizer	ammonium sulfate, also known as ammonium sulfate, is the earliest production and use of a nitrogen fertilizer at home and abroad. It is usually used as a standard nitrogen fertilizer, nitrogen content between 20% to 30%. Ammonium sulfate is a strong acid and weak base salt, and the aqueous solution is acidic. Ammonium sulfate is inorganic fertilizer in the nitrogen fertilizer, acid fertilizer, long-term use of a single, so that soil acidification hardening, the need for improvement. Ammonium sulfate cannot be used for the production of organic fertilizers. And acid fertilizer can not be used together with alkaline fertilizer, double hydrolysis is easy to lose the effect of fertilizer. In the 60s of the 20th century, ammonium sulfate was the main variety of nitrogen fertilizer, and was also one of the main sources of nutrient element sulfur in crops. Ammonia and sulfuric acid neutralization was used as the first step, but the proportion of by-product ammonium sulfate became larger and larger later. Now the domestic production is basically all from other industries, such as Coking Industry, caprolactam, sulfuric acid tail gas desulfurization, power plant desulfurization, acrylonitrile and methyl methacrylate, zinc oxide and other by-products. The by-product ammonium sulfate follows the principle of "treating waste with waste", realizes the comprehensive utilization of waste, and achieves the purpose of energy saving and emission reduction. In particular, with the breakthrough of ammonia desulfurization project technology, the production of by-product ammonium sulfate in power plant desulfurization will increase significantly in the future. pure ammonium sulfate is a white crystal, which begins to decompose into ammonia and ammonium hydrogen sulfate when heated to 100 ℃. The by-product is yellowish or gray in color, with small hygroscopicity and difficult to agglomerate, so it is easy to store, and soluble in water, insoluble in ethanol and acetone. ammonium sulfate is a physiologically acidic available nitrogen fertilizer, which is generally suitable for wheat, corn, rice, cotton, sweet potato, hemp, fruit trees, vegetables and other crops. For soil, ammonium sulfate is most suitable for neutral soil and alkaline soil, but not for acidic soil. It is also used as an analytical reagent (precipitant, masking agent), supporting electrolyte in electrochemical analysis, microbial culture medium and ammonium salt preparation.
application method	(1) was used as basal fertilizer. When ammonium sulfate is used as basal fertilizer, soil should be deeply applied to facilitate the absorption of crops. (2) as topdressing. This is the most suitable method of application. According to different soil types to determine the amount of ammonium sulfate topdressing. For soil with poor water and fertilizer conservation performance, it is necessary to apply it by stages, and the dosage should not be too much for each time; For soil with good water and fertilizer conservation performance, the dosage can be appropriately increased. How much soil moisture also has a greater impact on fertilizer efficiency, especially in dry land, the application of ammonium sulfate must pay attention to timely watering. As for the paddy field as topdressing, should be the first drainage to dry, and should pay attention to the combination of The Rake at the same time. In addition, there are also significant differences in the application of ammonium sulfate in different crops. For example, when used in fruit trees, it can be applied by furrow, ring or hole. (3) more suitable for seed fertilizer. Because ammonium sulfate had no adverse effect on seed germination.
note	(1) should not be contacted or mixed with other alkaline fertilizers or alkaline substances to prevent reducing fertilizer efficiency. (2) it is not appropriate to apply ammonium sulfate on the same piece of farmland for a long time, otherwise the soil will become acidic and cause hardening. If it is necessary to apply, it can be appropriate with the application of some lime or organic fertilizer. However, attention must be paid not to mix with lime to prevent decomposition of ammonium sulfate and nitrogen loss. In general, the cooperation of the two is separated by 3 to 5 days. (3) not suitable for application on acid soil.
solubility in water (g/100ml)	grams dissolved per 100ml of water at different temperatures (℃): 70.6g/0 ℃;73g/10 ℃;75.4g/20 ℃;78g/30 ℃;81g/40 ℃ 88g/60 ℃;95g/80 ℃;103g/100 ℃
identification test	positive for ammonium salt test (IT-3) and sulfate test (IT-29).
content analysis	a sample of 2G is precisely weighed, dissolved in ml of water, and placed in a ml flask. 40ml of a mixed solution (previously neutralized with 1mol/L sodium hydroxide solution, using phenolphthalein test solution (TS-167) as an indicator) in which formaldehyde and water were mixed by an equal volume was added and mixed. Stand for 30min. Titrate to the pink end point with 1mol/L sodium hydroxide and maintain for 5min. Each ml of 1mol/L sodium hydroxide solution is equivalent to 66.06mg of ammonium sulfate [(NH4)2SO4].
toxicity	LD50 orally in Rabbit: 2840 mg/kg
usage limit	Baked Goods 0.15%; Gelatin and pudding products 0.1%(FDA,§ 184.1143,2000).
Use	is mainly used as fertilizer, suitable for all kinds of soil and crop used as analytical reagent, also used to precipitate protein used as a flux, fabric fire retardant, etc. used as a fertilizer, can also be used as a flux, fabric fire retardant, pharmaceutical as a salting out agent, The chemical industry is used as raw materials for the production of hydrogen peroxide, ammonium alum and ammonium chloride, and the welding industry is used as flux. The textile industry is used as a fire retardant for fabrics. The electroplating industry is used as an additive for electroplating baths. It is used as nitrogen fertilizer in agriculture and is suitable for general soil and crops. Food-grade products are used as dough conditioners, yeast feed. dough conditioner; Yeast feed. As a nitrogen source for yeast culture in the production of fresh yeast, the dosage is not specified. About 10% (about 0.25% of the amount of wheat flour) is used as yeast in bread. GB 2760-90 is classified as a processing aid. biologics, precipitated proteins, Chromatography Reagents, urinalysis, media prepared in haploid breeding. Medicine used as salting out agent, food sauce color catalyst and for fresh yeast production yeast culture. It is also used as a dyeing aid for acid dyes and as a de-ashing agent for leather. Production of hydrogen peroxide used for the preparation of ammonium persulfate, and electroplating.
production method	is obtained by neutralization of ammonium hydroxide and sulfuric acid, crystallization, centrifugation and drying. neutralization ammonia and sulfuric acid were neutralized at about 100 ° C., and the resulting ammonium sulfate crystal slurry was centrifuged and dried to obtain a final ammonium sulfate product. The 2NH3 H2SO4 →(NH4)2SO4 recovery method is obtained by recovering ammonia from coke oven gas and then carrying out neutralization reaction with sulfuric acid.
category	toxic substances
toxicity grade	poisoning
Acute toxicity	oral-rat LD50: 3000 mg/kg; Intraperitoneal-mouse LD50: 610 mg/kg
explosive hazard characteristics	white light from heating with potassium chlorate;
flammability hazard characteristics	flammable; Toxic nitrogen oxides generated by heat, sulfur oxide and ammonia smoke
storage and transportation characteristics	The warehouse is ventilated and dried at low temperature; It is stored separately from potassium nitrate and potassium nitrite
fire extinguishing agent	dry powder, foam, sand, carbon dioxide, water mist
toxic substance data	information provided by: pubchem.ncbi.nlm.nih.gov (external link)

Last Update：2024-04-10 22:29:15

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sulfuric acid, diammonium salt

Ammonium sulfate

CAS: 7783-20-2

Molecular Formula: H8N2O4S

sulfuric acid, diammonium salt - Names and Identifiers

sulfuric acid, diammonium salt - Physico-chemical Properties

sulfuric acid, diammonium salt - Risk and Safety

sulfuric acid, diammonium salt - Upstream Downstream Industry