<生产厂家价格>

硫酸铵

硫酸铵用途

硫酸铵,≥99.0%,AR是一种用于分子生物学的无机硫酸盐[1]。

硫酸铵名称

[ CAS 号 ]:
7783-20-2

[ 中文名 ]:
硫酸铵

[ 英文名 ]:
ammonium sulphate

[中文别名 ]:

硫酸胺

[英文别名 ]:

Ammonium sulfate
MFCD00003391
EINECS 231-984-1
ammonium sulphate

硫酸铵生物活性

[ 描述 ]:

硫酸铵,≥99.0%,AR是一种用于分子生物学的无机硫酸盐[1]。

[ 相关类别 ]:

研究领域 >> 其他

硫酸铵物理化学性质

[ 密度 ]:
1.76

[ 沸点 ]:
330ºC at 760 mmHg

[ 熔点 ]:
280ºC

[ 分子式 ]:
H₈N₂O₄S

[ 分子量 ]:
132.139

[ 闪点 ]:
26 °C

[ 精确质量 ]:
132.020477

[ PSA ]:
86.22000

[ LogP ]:
0.75190

[ 外观性状 ]:
白色结晶粉末

[ 折射率 ]:
n20/D 1.396

[ 储存条件 ]:
库房通风低温干燥,与硝酸钾,亚硝酸钾分开存放

[ 稳定性 ]:
Stable. Contact with strong oxidizers may cause fire or explosion. Incompatible with strong bases.

[ 水溶解性 ]:
H2O: 1 M at 20 °C, clear, colorless | 77 g/100 mL (25 ºC)

硫酸铵MSDS

详细MSDS(安全技术说明书)

硫酸铵毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: BS4500000

CAS REGISTRY NUMBER :: 7783-20-2

LAST UPDATED :: 199710

DATA ITEMS CITED :: 11

MOLECULAR FORMULA :: O4-S.2H4-N

MOLECULAR WEIGHT :: 132.16

WISWESSER LINE NOTATION :: Z&2 S-O4

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Human - man

DOSE/DURATION :: 1500 mg/kg

TOXIC EFFECTS :: Gastrointestinal - hypermotility, diarrhea Gastrointestinal - nausea or vomiting Gastrointestinal - other changes

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 42(2),100,1977

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 2840 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - muscle contraction or spasticity Lungs, Thorax, or Respiration - other changes

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 53(2),93,1988

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 640 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - muscle contraction or spasticity Lungs, Thorax, or Respiration - other changes

REFERENCE :: GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 53(2),93,1988

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 610 mg/kg

TOXIC EFFECTS :: Behavioral - tremor Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - dyspnea

REFERENCE :: UCPHAQ University of California, Berkeley, Publications in Pharmacology. (Berkeley, CA) V.1-3, 1938-57. Discontinued. Volume(issue)/page/year: 2,1,1941

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - domestic

DOSE/DURATION :: 3500 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - mydriasis (pupillary dilation) Behavioral - tremor Lungs, Thorax, or Respiration - respiratory stimulation

REFERENCE :: AJVRAH American Journal of Veterinary Research. (American Veterinary Medical Assoc., 930 N. Meacham Rd., Schaumburg, IL 60196) V.1- 1940- Volume(issue)/page/year: 32,1229,1971 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 80158 No. of Facilities: 5059 (estimated) No. of Industries: 67 No. of Occupations: 72 No. of Employees: 55229 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 80158 No. of Facilities: 8713 (estimated) No. of Industries: 100 No. of Occupations: 82 No. of Employees: 159582 (estimated) No. of Female Employees: 47852 (estimated)

硫酸铵安全信息

[ 个人防护装备 ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ 危害码 (欧洲) ]:
Xi:Irritant

[ 风险声明 (欧洲) ]:
R36/37/38

[ 安全声明 (欧洲) ]:
S26-S37/39

[ 危险品运输编码 ]:
UN 1170 3/PG 3

[ WGK德国 ]:
1

[ RTECS号 ]:
BS4500000

[ 危险类别 ]:
3.0

[ 海关编码 ]:
3102210000

硫酸铵制备

1.中和法氨与硫酸约在100℃下进行中和反应，生成的硫酸铵晶浆液经离心分离、干燥，制得硫酸铵成品。其

回收法由炼焦炉气回收氨气，再与硫酸进行中和反应而得。
2.将硫酸铵溶于冷水中，至相对密度为1.20。加入适量氨水调节溶液ph值至8～9，静置，吸取上清液，在清液中加入少量活性炭，加热煮沸，于60℃保温。再补加氨水至ph值为9～10。静置，冷至室温。过滤，蒸发滤液至析出结晶，于70℃干燥，得纯品硫酸铵。

3.在搅拌和有冰水冷却的条件下，向270mL浓氮水(相对密度为0.91)中加入850mL 20%的H2SO4。硫酸加完后，溶液还应具有氨味，否则需补加氨水。将所得溶液煮沸后过滤。滤液按上述方法进行蒸发和结晶。

4.硫酸铵的提纯方法：将150g工业品硫酸铵溶解在260mL水中，并加热至沸,加入1～2g过二硫酸铵或30%的过氧化氢。继续煮沸几分钟，直至二价的铁被完全氧化为止。可以用K3［Fe(CN)6］溶液检验溶液中二价铁是否氧化完全，若加入K3［Fe(CN)6］溶液，无蓝色沉淀生成，则表明已氧化完全，否则还需补加过二硫酸铵或过氧化氢。氧化完全后，向溶液中加入氨水，使溶液的pH值约为80。煮沸后过滤除去沉淀物。向滤液中加入少量EDTA溶液后，加热蒸发浓缩至有大量结晶出现。冷却至室温后抽滤，并用冷蒸馏水洗涤几次，然后在30～50℃下干燥。

5.氢氧化铵和硫酸中和后，结晶、离心分离并干燥而得。

6.将300kg蒸馏水加到200kg工业硫酸铵中，并通蒸汽加热，搅拌至全部溶解。将溶解好的溶液冷却
到50℃，根据原料中重金属，铁、砷含量加入适量硫化铵溶液，搅拌均匀，静置3～4h，检验重金属硫化物沉淀完全后，过滤。在所得滤液中加入硫酸至ph＝2，充分搅拌，使溶液中砷离子沉淀反应完全，加入200克活性炭进行脱色，检验砷含量合格后进行抽滤或压滤。将澄清的滤液加热至70～80℃以
除去硫化氢，静置冷却，冷到50～60℃时，加入氨水，搅拌均匀，调节ph＝9，再加入200g活性炭，检验铁合格后，抽滤或压滤，将清液加热蒸发浓缩结晶，结晶离心甩干，于100℃烘箱内烘干即可。
母液可回收利用。若要得到高纯硫酸铵，只需采用分析纯硫酸铵、电导水、高纯硫化铵、高纯硫酸、高纯氨水和经过处理的活性炭，按此过程制备即可。

7.用高纯硫酸中和高纯氨水制得高纯硫酸铵：

将盛1350ml密度为0.9的高纯氨水的硬质烧杯放在冰浴中静置15min，在搅拌下慢慢滴入4350ml20%的高纯稀硫酸。制得的溶液应保持有氨的气味。将溶液蒸发浓缩到糖浆状时停止加热，冷却结晶，抽滤后用电导水洗涤一次，然后烘干，即得高纯硫酸铵。

硫酸铵海关

[ 海关编码 ]: 3102210000

硫酸铵文献

Analysis of cytochrome P450 CYP119 ligand-dependent conformational dynamics by two-dimensional NMR and X-ray crystallography.

J. Biol. Chem. 290(16) , 10000-17, (2015)

Defining the conformational states of cytochrome P450 active sites is critical for the design of agents that minimize drug-drug interactions, the development of isoform-specific P450 inhibitors, and t...

Inducible, tightly regulated and growth condition-independent transcription factor in Saccharomyces cerevisiae.

Nucleic Acids Res. 42(17) , e130, (2014)

The precise control of gene expression is essential in basic biological research as well as in biotechnological applications. Most regulated systems available in yeast enable only the overexpression o...

Structural basis of Ets1 activation by Runx1.

Leukemia 28(10) , 2040-8, (2014)

Runx1 is required for definitive hematopoiesis and is well known for its frequent chromosomal translocations and point mutations in leukemia. Runx1 regulates a variety of genes via Ets1 activation on ...

更多文献

硫酸铵相关知识

硫酸铵是什么？有什么用途？如何制备和提纯？

2022-05-26 19:12:59

硫酸铵是一种分子生物无机盐，一般以白色结晶粉末存在，如果是纯品的话，则通常是无色透明斜方晶系结晶，无气味。其化学结构式为H8N2O4S，相对分子量132.139。280℃以上，硫酸铵会分解，闪点26℃。硫酸铵在水中的溶解度随温度变化而有不同，每100g水中，0℃时可以溶解70.6g，25℃可以溶解...

硫酸铵