Home

Citation: LIU Chang-Jian, ZHANG Yi. Thermal Decomposition of NaNH₄CrO₄•2H₂O[J]. Acta Physico-Chimica Sinica, ;2005, 21(02): 218-220. doi: 10.3866/PKU.WHXB20050222 shu

Thermal Decomposition of NaNH₄CrO₄•2H₂O

LIU Chang-Jian ,
ZHANG Yi

1.
InstituteProcessEngineering,ChineseAcademyofSciences,Beijing　100080;TheKeyLaboratoryofCatalysis,ChinaNationalPetroleumCo.,UniversityofPetroleum,Beijing　102249

Received Date: 10 June 2004
Available Online: 15 February 2005

Thermal decomposition of NaNH4CrO4•2H2O was studied by means of thermogravimetric analysis (TG),differential thermogravimetric (DTG), differential thermal analysis (DTA) and X-ray diffraction (XRD). The results showed that the thermal decomposition of NaNH4CrO4•2H2O proceeds in three steps, i.e., the release of crystal water at temperature from 50 ℃ to 95 ℃ at first, the formation of the intermediates sodium chromate and ammonium dichromate with the partial release of ammonia at temperature from 100 ℃ to 180 ℃,and the complete elimination of ammonia from 215 ℃ to 385 ℃ .In flowing ambient and suitable temperature（400～790 ℃）,the final decomposition product was mostly sodium dichromate. This leads to a cleaner process for sodium dichromate production.
- NaNH₄CrO₄•2H₂O;Thermal decomposition;Cleaner process
1. [1]
  Zhuo WANG , Junshan ZHANG , Shaoyan YANG , Lingyan ZHOU , Yedi LI , Yuanpei LAN . Preparation and photocatalytic performance of CeO₂-reduced graphene oxide by thermal decomposition. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1708-1718. doi: 10.11862/CJIC.20240067
2. [2]
  Yahui HAN , Jinjin ZHAO , Ning REN , Jianjun ZHANG . Synthesis, crystal structure, thermal decomposition mechanism, and fluorescence properties of benzoic acid and 4-hydroxy-2, 2′: 6′, 2″-terpyridine lanthanide complexes. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 969-982. doi: 10.11862/CJIC.20240395
3. [3]
  Jiaxin Zhang , Yingzhang Shi , Zhiwen Wang , Yujie Song , Dongpeng Yan . Photosynthesis of CH4 and H2O2 from CO2 and H2O over Pd/SnNb2O6 via strong metal-support interaction. Chinese Journal of Structural Chemistry, 2026, 45(5): 100866-100866. doi: 10.1016/j.cjsc.2026.100866
4. [4]
  Lihui Ou , Zhancheng Liu , Dai-Huo Liu , Zhi Zhang . Cl-adsorbed Cu(111)/H₂O interface selectively realizes electrochemical CO₂ reduction towards C₂H₄ product: Mechanistic understanding. Chinese Chemical Letters, 2026, 37(2): 111920-. doi: 10.1016/j.cclet.2025.111920
5. [5]
  Xuan Pang , Leyan Nian , Yongzhang Wang , Chunmei Huang . Na2(C6H4NO3)2∙H2O: A promising ultraviolet nonlinear optical crystal with strong second-harmonic generation effect and large birefringence. Chinese Journal of Structural Chemistry, 2026, 45(4): 100847-100847. doi: 10.1016/j.cjsc.2025.100847
6. [6]
  Dong-Xue Jiao , Hui-Li Zhang , Chao He , Si-Yu Chen , Ke Wang , Xiao-Han Zhang , Li Wei , Qi Wei . Layered (C5H6ON)2[Sb2O(C2O4)3] with a large birefringence derived from the uniform arrangement of π-conjugated units. Chinese Journal of Structural Chemistry, 2024, 43(6): 100304-100304. doi: 10.1016/j.cjsc.2024.100304
7. [7]
  Sikai Wu , Xuefei Wang , Huogen Yu . Hydroxyl-enriched hydrous tin dioxide-coated BiVO4 with boosted photocatalytic H2O2 production. Chinese Journal of Structural Chemistry, 2024, 43(12): 100457-100457. doi: 10.1016/j.cjsc.2024.100457
8. [8]
  Shuang Zhao , Fei Jia , Kaibei Zhan , Rui-Xi Wang , Pengfei Tan , Lin Shen , Li-Ming Wu , Ling Chen . Amino substitution strategy achieves significant blue shift while preserving high optical anisotropy: A₂(H₃C₃N₄S₂)₂•H₂O (A =NH₄, K, Rb, Cs). Chinese Chemical Letters, 2026, 37(3): 110625-. doi: 10.1016/j.cclet.2024.110625
9. [9]
  Tong Zhou , Xue Liu , Liang Zhao , Mingtao Qiao , Wanying Lei . Efficient Photocatalytic H₂O₂ Production and Cr(Ⅵ) Reduction over a Hierarchical Ti₃C₂/In₄SnS₈ Schottky Junction. Acta Physico-Chimica Sinica, 2024, 40(10): 2309020-0. doi: 10.3866/PKU.WHXB202309020
10. [10]
  Hualin Jiang , Wenxi Ye , Huitao Zhen , Xubiao Luo , Vyacheslav Fominski , Long Ye , Pinghua Chen . Novel 3D-on-2D g-C₃N₄/AgI._x._y heterojunction photocatalyst for simultaneous and stoichiometric production of H₂ and H₂O₂ from water splitting under visible light. Chinese Chemical Letters, 2025, 36(2): 109984-. doi: 10.1016/j.cclet.2024.109984
11. [11]
  Yanyan Zhao , Zhen Wu , Yong Zhang , Bicheng Zhu , Jianjun Zhang . Enhancing photocatalytic H₂O₂ production via dual optimization of charge separation and O₂ adsorption in Au-decorated S-vacancy-rich CdIn₂S₄. Acta Physico-Chimica Sinica, 2025, 41(11): 100142-0. doi: 10.1016/j.actphy.2025.100142
12. [12]
  Guoqiang Chen , Zixuan Zheng , Wei Zhong , Guohong Wang , Xinhe Wu . Molten Intermediate Transportation-Oriented Synthesis of Amino-Rich g-C₃N₄ Nanosheets for Efficient Photocatalytic H₂O₂ Production. Acta Physico-Chimica Sinica, 2024, 40(11): 2406021-0. doi: 10.3866/PKU.WHXB202406021
13. [13]
  Wei Zhong , Dan Zheng , Yuanxin Ou , Aiyun Meng , Yaorong Su . Simultaneously Improving Inter-Plane Crystallization and Incorporating K Atoms in g-C₃N₄ Photocatalyst for Highly-Efficient H₂O₂ Photosynthesis. Acta Physico-Chimica Sinica, 2024, 40(11): 2406005-0. doi: 10.3866/PKU.WHXB202406005
14. [14]
  Zheng Liu , Yuqing Bian , Graham Dawson , Jiawei Zhu , Kai Dai . Rational constructing of Zn_0.5Cd_0.5S-diethylenetriamine/g-C₃N₄ S-scheme heterojunction with enhanced photocatalytic H₂O₂ production. Chinese Chemical Letters, 2025, 36(9): 111272-. doi: 10.1016/j.cclet.2025.111272
15. [15]
  Mengru , Qu , Chuanzhi Sun , Shujuan Jiang , Shaoqing Song . Localized Co3O4/In2S3 S-scheme heterojunction by polarization engineering for achieving an exceptional H2 efficiency. Chinese Journal of Structural Chemistry, 2026, 45(5): 100870-100870. doi: 10.1016/j.cjsc.2026.100870
16. [16]
  Jiaming Li , Yuxin Huang , Chengshan Zhao , Kai Wang . Unveiling the interfacial charge dynamics in organic/inorganic C3N4/Bi2O3 S-scheme heterojunction for efficient solar-driven H2O2 synthesis. Chinese Journal of Structural Chemistry, 2026, 45(5): 100869-100869. doi: 10.1016/j.cjsc.2026.100869
17. [17]
  Chunhui Gao , Lurong Li , Guanwei Peng , Jinni Shen , Wenxin Dai , Zizhong Zhang . Efficient photocatalytic NADH regeneration and enzymatic CO₂ reduction over[Cp^*Rh(bpy)H₂O]²⁺ self-assembled CdIn₂S₄ flower-like microspheres. Acta Physico-Chimica Sinica, 2026, 42(3): 100165-0. doi: 10.1016/j.actphy.2025.100165
18. [18]
  Huiying ZHANG , Ping LI , Weixia DONG , Zhiwen HU , Qifu BAO , Qizheng DONG , Mingmin BAI , Wenqi LI . Photocatalytic performance of spheroidal nano Bi₄Ti₃O₁₂ prepared by surfactant-assisted hydrothermal reaction. Chinese Journal of Inorganic Chemistry, 2026, 42(3): 551-561. doi: 10.11862/CJIC.20250269
19. [19]
  Yi Yang , Xin Zhou , Miaoli Gu , Bei Cheng , Zhen Wu , Jianjun Zhang . Femtosecond transient absorption spectroscopy investigation on ultrafast electron transfer in S-scheme ZnO/CdIn₂S₄ photocatalyst for H₂O₂ production and benzylamine oxidation. Acta Physico-Chimica Sinica, 2025, 41(6): 100064-0. doi: 10.1016/j.actphy.2025.100064
20. [20]
  Jie Guo , Lijun Xue , Fahui Song , Chengpeng Li , Zhuo Chen , Lili Wen . Dual built-in electric field-driven S-scheme heterojunction of D-A COFs/ZnIn₂S₄ for accelerated charge separation toward high-efficiency H₂O₂ photosynthesis in pure water. Acta Physico-Chimica Sinica, 2026, 42(4): 100177-0. doi: 10.1016/j.actphy.2025.100177

Get Citation

PDF

XML

Metrics

PDF Downloads(2568)
Abstract views(3827)
HTML views(48)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return

Thermal Decomposition of NaNH4CrO4&#8226;2H2O

Metrics

通讯作者: 陈斌, bchen63@163.com

Thermal Decomposition of NaNH₄CrO₄•2H₂O