硫酸铝

规格或纯度: 99.95% metals basis,无水

CAS编号: 10043-01-3
分子式: Al₂O₁₂S₃
分子量: 342.15
EC号: 233-135-0
MDL号: MFCD00003423
PubChem编号: 24850

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货号 (SKU)	包装规格	是否现货
A101186-1g	1g	现货
A101186-5g	5g	现货
A101186-25g	25g	现货
A101186-100g	100g	现货
A101186-500g	500g	现货

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基本描述

规格或纯度	99.95% metals basis,无水
英文名称	Aluminum sulfate
别名	明矾
英文别名	ALUMINUM SULFATE\|10043-01-3\|Dialuminum trisulfate\|Dialuminum sulfate\|Aluminum sulfate anhydrous\|Aluminum alum\|Filter Alum\|Pickle Alum\|Aluminum sesquisulfate\|Papermaker's Alum\|Aluminum sulfate (2:3)\|Pearl Alum\|Aluminum trisulfate\|Dialuminum sulphate\|Sulfur
储存温度	充氩,干燥
运输条件	常规运输
产品介绍	产品介绍：在空气中长期存放易吸结块，脱水温度为86.5℃，能溶于水、酸和碱，不溶于醇，水溶液呈酸性，具有酸而涩的味道。加热到530℃时开始分解，860℃分解结束，分解最终产物为r-Al2O3,、高纯硫酸铝在水解过程中，首先生成中间产物碱式盐，然后生成氢氧化铝。产品应用：硫酸铝是核固红溶液的成分之一。它是一种凝结剂，用于从水中除去砷酸盐。硫酸铝已可用于制备核固红溶液，用于组织学和细胞学方案中的红核复染。它可以作为催化剂，催化乳酸发生脱羰基反应，生成乙醛。硫酸铝可用于与石墨烯水凝胶形成多孔复合吸附剂，用于从水中除去氟化物。 Product Application： Aluminum sulfate is one of the components of Nuclear Fast Red solution.It is a coagulant used for arsenate removal from water. Aluminum sulfate has been used in the preparation of the nuclear-fast red solution for red nuclear counterstaining in histology and cytology protocols. It may be used as a catalyst for the conversion of lactic acid to acetaldehyde via decarbonylation. Aluminum sulfate may be used to form a porous composite adsorbent with graphene hydrogel to be used for fluoride removal from water.

名称和标识符

EC号	233-135-0
IUPAC Name	dialuminum;trisulfate
INCHI	InChI=1S/2Al.3H2O4S/c;;31-5(2,3)4/h;;3(H2,1,2,3,4)/q2*+3;;;/p-6
InChi Key	DIZPMCHEQGEION-UHFFFAOYSA-H
Canonical SMILES	[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[O-]S(=O)(=O)[O-].[Al+3].[Al+3]
WGK Germany	1
RTECS	BD1700000
PubChem CID	24850
分子量	342.15

化学和物理性质

溶解性	溶于水，不溶于乙醇等。
密度	2.71
敏感性	易吸潮
折光率	1.47
熔点	770°C

安全和危险性（GHS）

象形图	Corrosive
信号词	Danger
危险声明	H315: Causes skin irritation H335: May cause respiratory irritation H412: Harmful to aquatic life with long lasting effects H318: Causes serious eye damage
预防措施声明	P261,P305+P351+P338,P273,P280
WGK Germany	1
RTECS	BD1700000
个人防护装备	dust mask type N95 (US),Eyeshields,Gloves

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参考文献

1. Clint S Schmidt,C Jo White,Ashraf S Ibrahim,Scott G Filler,Yue Fu,Michael R Yeaman,John E Edwards,John P Hennessey. (2012-10-27) NDV-3, a recombinant alum-adjuvanted vaccine for Candida and Staphylococcus aureus, is safe and immunogenic in healthy adults.. Vaccine, 30 ((52)): (7594-7600). [PMID:23099329]
2. Minqing Gong,Jun Zhou,Chunting Yang,Yao Deng,Guangyu Zhao,Yonghui Zhang,Yue Wang,Yusen Zhou,Wenjie Tan,Honglin Xu. (2012-11-03) Insect cell-expressed hemagglutinin with CpG oligodeoxynucleotides plus alum as an adjuvant is a potential pandemic influenza vaccine candidate.. Vaccine, 30 ((52)): (7498-7505). [PMID:23116697]
3. Eric Dumonteil,Maria Elena Bottazzi,Bin Zhan,Michael J Heffernan,Kathryn Jones,Jesus G Valenzuela,Shaden Kamhawi,Jaime Ortega,Samuel Ponce de Leon Rosales,Bruce Y Lee,Kristina M Bacon,Bernhard Fleischer,B T Slingsby,Miguel Betancourt Cravioto,Roberto Tapia-Conyer,Peter J Hotez. (2012-11-16) Accelerating the development of a therapeutic vaccine for human Chagas disease: rationale and prospects.. Expert review of vaccines, 11 ((9)): (1043-1055). [PMID:23151163]
4. J Madrid,M J López,J Orengo,S Martínez,M Valverde,M D Megías,F Hernández. (2012-12-12) Effect of aluminum sulfate on litter composition and ammonia emission in a single flock of broilers up to 42 days of age.. Animal : an international journal of animal bioscience, 6 ((8)): (1322-1329). [PMID:23217236]
5. P B Delaune,P A Moore. (2012-12-25) 17β-estradiol in runoff as affected by various poultry litter application strategies.. The Science of the total environment, 444 (): (26-31). [PMID:23262322]
6. Y Shen,Y Cui,W Yuan. (2013-01-31) Flocculation optimization of microalga Nannochloropsis oculata.. Applied biochemistry and biotechnology, 169 ((7)): (2049-2063). [PMID:23361974]
7. Amy S McKee,Matthew A Burchill,Michael W Munks,Lei Jin,John W Kappler,Rachel S Friedman,Jordan Jacobelli,Philippa Marrack. (2013-03-01) Host DNA released in response to aluminum adjuvant enhances MHC class II-mediated antigen presentation and prolongs CD4 T-cell interactions with dendritic cells.. Proceedings of the National Academy of Sciences of the United States of America, 110 ((12)): (E1122-E1131). [PMID:23447566]
8. Ying-Chien Chung,Li-Chun Wu,Chih-Yu Chen. (2013-03-28) The removal of kaolinite suspensions by acid-soluble and water-soluble chitosans.. Environmental technology, 34 ((1-4)): (283-288). [PMID:23530342]
9. Zakir Khan,Christophe Combadière,Fran?ois-Jér?me Authier,Valérie Itier,Fran?ois Lux,Christopher Exley,Meriem Mahrouf-Yorgov,Xavier Decrouy,Philippe Moretto,Olivier Tillement,Romain K Gherardi,Josette Cadusseau. (2013-04-06) Slow CCL2-dependent translocation of biopersistent particles from muscle to brain.. BMC medicine, 11 (): (99-99). [PMID:23557144]
10. M Pihl,L Akerman,S Axelsson,M Chéramy,M Hjorth,R Mallone,J Ludvigsson,R Casas. (2013-04-23) Regulatory T cell phenotype and function 4 years after GAD-alum treatment in children with type 1 diabetes.. Clinical and experimental immunology, 172 ((3)): (394-402). [PMID:23600827]
11. S Sekar,K Sasirekha,S Krishnakumar,T P Sastry. (2013-05-11) A novel cross-linked human amniotic membrane for corneal implantations.. Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine, 227 ((3)): (221-228). [PMID:23662337]
12. Jacqui Wise. (2013-05-25) Campaigners criticise report into Camelford water poisoning.. BMJ (Clinical research ed.), 346 (): (f3376-f3376). [PMID:23704142]
13. Mitch Leslie. (2013-07-06) Solution to vaccine mystery starts to crystallize.. Science (New York, N.Y.), 341 ((6141)): (26-27). [PMID:23828925]
14. Jisun Han,Bong-Seok Jeon,Noriko Futatsugi,Ho-Dong Park. (2013-07-17) The effect of alum coagulation for in-lake treatment of toxic Microcystis and other cyanobacteria related organisms in microcosm experiments.. Ecotoxicology and environmental safety, 96 (): (17-23). [PMID:23856121]
15. Dengbin Yu,Daming Yong,Shaojun Dong. (2013-08-09) Toxicity detection of sodium nitrite, borax and aluminum potassium sulfate using electrochemical method.. Journal of environmental sciences (China), 25 ((4)): (785-790). [PMID:23923788]
16. K P Sharma,N Upreti,Shweta Sharma,S Sharma. (2013-08-31) Protective effect of Spirulina and tamarind fruit pulp diet supplement in fish (Gambusia affinis Baird & Girard) exposed to sublethal concentration of fluoride, aluminum and aluminum fluoride.. Indian journal of experimental biology, 50 ((12)): (897-903). [PMID:23986974]
17. Yosuke Kumamoto,Melissa Linehan,Jason S Weinstein,Brian J Laidlaw,Joseph E Craft,Akiko Iwasaki. (2013-10-01) CD301b? dermal dendritic cells drive T helper 2 cell-mediated immunity.. Immunity, 39 ((4)): (733-743). [PMID:24076051]
18. B Heydenreich,I Bellinghausen,L Lund,H Henmar,G Lund,P Adler Würtzen,J Saloga. (2014-02-18) Adjuvant effects of aluminium hydroxide-adsorbed allergens and allergoids - differences in vivo and in vitro.. Clinical and experimental immunology, 176 ((3)): (310-319). [PMID:24528247]
19. Yinan Wang,Deepta Bhattacharya. (2014-04-09) Adjuvant-specific regulation of long-term antibody responses by ZBTB20.. The Journal of experimental medicine, 211 ((5)): (841-856). [PMID:24711582]
20. Ayuko Imaoka,Michiko Hattori,Takeshi Akiyoshi,Hisakazu Ohtani. (2014-05-09) Decrease in ciprofloxacin absorption by polyvalent metal cations is not fully attributable to chelation or adsorption.. Drug metabolism and pharmacokinetics, 29 ((5)): (414-418). [PMID:24806820]
21. Michaela Leyh,Andreas Seitz,Lutz Dürselen,Hans-Robert Springorum,Peter Angele,Anita Ignatius,Joachim Grifka,Susanne Gr?ssel. (2014-06-12) Osteoarthritic cartilage explants affect extracellular matrix production and composition in cocultured bone marrow-derived mesenchymal stem cells and articular chondrocytes.. Stem cell research & therapy, 5 ((3)): (77-77). [PMID:24916039]
22. Katharina Stoelzel,Benjamin Kohl,Mariann Hoyer,Carola Meier,Agnieszka J Szczepek,Heidi Olze,Gundula Schulze-Tanzil. (2014-07-06) Effect of nasal sprays on an in vitro survival and morphology of nasoseptal cartilage.. European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 272 ((4)): (877-887). [PMID:24993660]
23. S Jolly,A Jaffal,L Delahaut,O Palluel,J-M Porcher,A Geffard,W Sanchez,S Betoulle. (2014-07-06) Effects of aluminium and bacterial lipopolysaccharide on oxidative stress and immune parameters in roach, Rutilus rutilus L.. Environmental science and pollution research international, 21 ((22)): (13103-13117). [PMID:24996940]
24. N Mahalakshmi,R Aparnaa,P Kaliraj. (2014-07-22) Evaluation of immune response elicited by inulin as an adjuvant with filarial antigens in mice model.. Scandinavian journal of immunology, 80 ((4)): (261-270). [PMID:25041426]
25. Heena,Rajesh Kumar,Susheela Rani,Ashok Kumar Malik. (2014-10-18) Development of a rapid and sensitive method for the determination of aluminum by reverse-phase high-performance liquid chromatography using a fluorescence detector.. Journal of chromatographic science, 53 ((5)): (800-806). [PMID:25323526]
26. Kyle K Shimabuku,Hyukjin Cho,Eli B Townsend,Fernando L Rosario-Ortiz,R Scott Summers. (2014-11-06) Modeling nonequilibrium adsorption of MIB and sulfamethoxazole by powdered activated carbon and the role of dissolved organic matter competition.. Environmental science & technology, 48 ((23)): (13735-13742). [PMID:25371136]
27. Alonso G P Guedes,Joseph A Jude,Jaime Paulin,Laura Rivero-Nava,Hirohito Kita,Frances E Lund,Mathur S Kannan. (2015-01-13) Airway responsiveness in CD38-deficient mice in allergic airway disease: studies with bone marrow chimeras.. American journal of physiology. Lung cellular and molecular physiology, 308 ((5)): (L485-L493). [PMID:25575514]
28. Min-Je Kim,Sae-Bom Kwon,Seung Hoon Ham,Eui-Suk Jeong,Yang-Kyu Choi,Kang Duk Choi,Jin Tae Hong,Seung Hyun Jung,Do-Young Yoon. (2015-02-03) H9 Inhibits Tumor Growth and Induces Apoptosis via Intrinsic and Extrinsic Signaling Pathway in Human Non-Small Cell Lung Cancer Xenografts.. Journal of microbiology and biotechnology, 25 ((5)): (648-657). [PMID:25639715]
29. Zhao Huang,Patcharakamon Nooeaid,Benjamin Kohl,Judith A Roether,Dirk W Schubert,Carola Meier,Aldo R Boccaccini,Owen Godkin,Wolfgang Ertel,Stephan Arens,Gundula Schulze-Tanzil. (2015-03-10) Chondrogenesis of human bone marrow mesenchymal stromal cells in highly porous alginate-foams supplemented with chondroitin sulfate.. Materials science & engineering. C, Materials for biological applications, 50 (): (160-172). [PMID:25746258]
30. Subbaiah Muthu Prabhu,Sankaran Meenakshi. (2015-04-12) A dendrimer-like hyper branched chitosan beads toward fluoride adsorption from water.. International journal of biological macromolecules, 78 (): (280-286). [PMID:25863157]
31. Najla A Lakkis,Grace J Maalouf,Dina M Mahmassani. (2015-05-04) Jellyfish Stings: A Practical Approach.. Wilderness & environmental medicine, 26 ((3)): (422-429). [PMID:25935311]
32. K A Schall,K A Holoyda,C N Grant,D E Levin,E R Torres,A Maxwell,H A Pollack,R A Moats,M R Frey,A Darehzereshki,D Al Alam,C Lien,T C Grikscheit. (2015-06-20) Adult zebrafish intestine resection: a novel model of short bowel syndrome, adaptation, and intestinal stem cell regeneration.. American journal of physiology. Gastrointestinal and liver physiology, 309 ((3)): (G135-G145). [PMID:26089336]
33. Kavithaa Loganathan,David Bromley,Pamela Chelme-Ayala,Mohamed Gamal El-Din. (2015-07-15) A hybrid froth flotation-filtration system as a pretreatment for oil sands tailings pond recycle water management: Bench- and pilot-scale studies.. Journal of environmental management, 161 (): (113-123). [PMID:26164269]
34. Thaqif El Khassawna,Wolfgang B?cker,Katharina Brodsky,David Weisweiler,Parameswari Govindarajan,Marian Kampschulte,Ulrich Thormann,Anja Henss,Marcus Rohnke,Natali Bauer,Robert Müller,Andreas Deutsch,Anita Ignatius,Lutz Dürselen,Alexander Langheinrich,Katrin S Lips,Reinhard Schnettler,Christian Heiss. (2015-07-27) Impaired extracellular matrix structure resulting from malnutrition in ovariectomized mature rats.. Histochemistry and cell biology, 144 ((5)): (491-507). [PMID:26210855]
35. Vivien Kauschke,Mathias Kneffel,Wolfgang Floel,Sonja Hartmann,Marian Kampschulte,Lutz Dürselen,Anita Ignatius,Reinhard Schnettler,Christian Heiss,Katrin Susanne Lips. (2015-08-08) Bone status of acetylcholinesterase-knockout mice.. International immunopharmacology, 29 ((1)): (222-230). [PMID:26250336]
36. Nagasathiya Krishnan,Pachaiappan Raman,Vairamani Mariappanadar. (2015-08-27) Simple mass spectrometric method for the estimation of boron and aluminum in water at the parts per billion level.. European journal of mass spectrometry (Chichester, England), 21 ((3)): (481-486). [PMID:26307729]
37. Robyn L Kosinsky,Florian Wegwitz,Nicole Hellbach,Matthias Dobbelstein,Ahmed Mansouri,Tanja Vogel,Yvonne Begus-Nahrmann,Steven A Johnsen. (2015-10-03) Usp22 deficiency impairs intestinal epithelial lineage specification in vivo.. Oncotarget, 6 ((35)): (37906-37918). [PMID:26431380]
38. Sandra G Velleman,Daniel L Clark. (2015-10-20) Histopathologic and Myogenic Gene Expression Changes Associated with Wooden Breast in Broiler Breast Muscles.. Avian diseases, 59 ((3)): (410-418). [PMID:26478160]
39. Catarina M S S Neves,Christoph Held,Sultan Mohammad,Miko Schleinitz,Jo?o A P Coutinhoa,Mara G Freire. (2015-11-18) Effect of salts on the solubility of ionic liquids in water: experimental and electrolyte Perturbed-Chain Statistical Associating Fluid Theory.. Physical chemistry chemical physics : PCCP, 17 ((47)): (32044-32052). [PMID:26575280]
40. Florent Arbogast,Johan Arnold,Philippe Hammann,Lauriane Kuhn,Johana Chicher,Diane Murera,Justine Weishaar,Sylviane Muller,Jean-Daniel Fauny,Frédéric Gros. (2018-09-11) ATG5 is required for B cell polarization and presentation of particulate antigens.. Autophagy, 15 ((2)): (280-294). [PMID:30196744]
41. Alan D Steinman,Mary E Ogdahl. (2012-10-27) Macroinvertebrate response and internal phosphorus loading in a Michigan Lake after alum treatment.. Journal of environmental quality, 41 ((5)): (1540-1548). [PMID:23099946]
42. Tetsuo Nakayama,Takuji Kumagai,Ken J Ishii,Toshiaki Ihara. (2012-10-30) Alum-adjuvanted H5N1 whole virion inactivated vaccine (WIV) induced IgG1 and IgG4 antibody responses in young children.. Vaccine, 30 ((52)): (7662-7666). [PMID:23102974]
43. Peter M Gray,Gail Forrest,Thomas Wisniewski,Gene Porter,Daniel C Freed,Julie A DeMartino,Dennis M Zaller,Zhiqiang Guo,Joseph Leone,Tong-Ming Fu,Kalpit A Vora. (2012-11-06) Evidence for cyclic diguanylate as a vaccine adjuvant with novel immunostimulatory activities.. Cellular immunology, 278 ((1-2)): (113-119). [PMID:23121983]
44. Xuan-Yi Wang,Xin Yao,Yan-Min Wan,Bin Wang,Jian-Qing Xu,Yu-Mei Wen. (2012-11-28) Responses to multiple injections with alum alone compared to injections with alum adsorbed to proteins in mice.. Immunology letters, 149 ((1-2)): (88-92). [PMID:23183095]
45. M Chéramy,C S Hampe,J Ludvigsson,R Casas. (2013-02-06) Characteristics of in-vitro phenotypes of glutamic acid decarboxylase 65 autoantibodies in high-titre individuals.. Clinical and experimental immunology, 171 ((3)): (247-254). [PMID:23379430]
46. Sabrina Diemert,Wei Wang,Robert C Andrews,Xing-Fang Li. (2013-02-06) Removal of halo-benzoquinone (emerging disinfection by-product) precursor material from three surface waters using coagulation.. Water research, 47 ((5)): (1773-1782). [PMID:23379973]
47. Erik Johannessen,Arild Schanke Eikum,Tore Krogstad. (2013-02-27) Long term in-line sludge storage in wastewater treatment plants: the potential for phosphorus release.. Environmental technology, 33 ((22-24)): (2723-2731). [PMID:23437673]
48. Geraldine Nogaro,Amy J Burgin,Valerie A Schoepfer,Matthew J Konkler,Katlin L Bowman,Chad R Hammerschmidt. (2013-03-05) Aluminum sulfate (alum) application interactions with coupled metal and nutrient cycling in a hypereutrophic lake ecosystem.. Environmental pollution (Barking, Essex : 1987), 176 (): (267-274). [PMID:23454589]
49. Thorsten Demberg,Egidio Brocca-Cofano,Seraphin Kuate,Stanley Aladi,Diego A Vargas-Inchaustegui,David Venzon,Irene Kalisz,V S Kalyanaraman,Eun Mi Lee,Ranajit Pal,Janet DiPasquale,Ruth M Ruprecht,David C Montefiori,Indresh Srivastava,Susan W Barnett,Marjorie Robert-Guroff. (2013-03-27) Impact of antibody quality and anamnestic response on viremia control post-challenge in a combined Tat/Env vaccine regimen in rhesus macaques.. Virology, 440 ((2)): (210-221). [PMID:23528732]
50. Vanessa G Oliveira,Ana Agua-Doce,Maria A Curotto de Lafaille,Juan J Lafaille,Luis Graca. (2013-03-28) Adjuvant facilitates tolerance induction to factor VIII in hemophilic mice through a Foxp3-independent mechanism that relies on IL-10.. Blood, 121 ((19)): (3936-3945). [PMID:23532736]
51. Feng-Cai Zhu,Fan-Yue Meng,Jing-Xin Li,Xiu-Ling Li,Qun-Ying Mao,Hong Tao,Yun-Tao Zhang,Xin Yao,Kai Chu,Qing-Hua Chen,Yue-Mei Hu,Xing Wu,Pei Liu,Lin-Yang Zhu,Fan Gao,Hui Jin,Yi-Juan Chen,Yu-Ying Dong,Yong-Chun Liang,Nian-Min Shi,Heng-Ming Ge,Lin Liu,Sheng-Gen Chen,Xing Ai,Zhen-Yu Zhang,Yu-Guo Ji,Feng-Ji Luo,Xiao-Qin Chen,Ya Zhang,Li-Wen Zhu,Zheng-Lun Liang,Xin-Liang Shen. (2013-06-04) Efficacy, safety, and immunology of an inactivated alum-adjuvant enterovirus 71 vaccine in children in China: a multicentre, randomised, double-blind, placebo-controlled, phase 3 trial.. Lancet (London, England), 381 ((9882)): (2024-2032). [PMID:23726161]
52. Odette M Shaw,Jacquie L Harper. (2013-07-09) An efficient single prime protocol for the induction of antigen-induced airways inflammation.. Journal of immunological methods, 395 ((1-2)): (79-82). [PMID:23831610]
53. K St?lzel,G Schulze-Tanzil,H Olze,S Schwarz,E M Feldmann,N Rotter. (2014-05-17) Immortalised human mesenchymal stem cells undergo chondrogenic differentiation in alginate and PGA/PLLA scaffolds.. Cell and tissue banking, 16 ((1)): (159-170). [PMID:24832181]
54. Yuan-Tsung Fu,Shi-Yuan Sheu,Yueh-Sheng Chen,Kuo-Yu Chen,Chun-Hsu Yao. (2015-05-03) Porous gelatin/tricalcium phosphate/genipin composites containing lumbrokinase for bone repair.. Bone, 78 (): (15-22). [PMID:25933942]

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硫酸铝

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化学和物理性质

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硫酸铝

库存信息

库存信息

库存信息

库存信息

库存信息

基本描述

名称和标识符

化学和物理性质

安全和危险性（GHS）

相关文档

质检报告COA

产品问答

产品问答

参考文献

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