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Detail of "7789-09-5"

  • MSDS Download
  • CAS Number:
  • 7789-09-5
  • Name:

  • Chromic acid, ammonium salt (1:2)

  • Superlist Name:
  • Ammonium dichromate
  • Molecular Structure:
  • Formula:
  • Cr2H8N2O7
  • Molecular Weight:
  • 252.06
  • Synonyms:
  • Chromicacid, diammonium salt (9CI);Dichromic acid, diammoniumsalt (8CI);Ammonium chromate;Diammonium dichromate;
  • EINECS:
  • 232-143-1
  • Density:
  • 2.150 g/cm3
  • Melting Point:
  • 170 °C (dec.)(lit.)
  • Appearance:
  • bright orange-red crystals
  • Hazard Symbols:
  • ExplosiveE,VeryT+,DangerousN
  • Risk Codes:
  • 45-46-60-61-2-8-21-25-26-34-42/43-48/23-50/53
  • Safety:
  • 53-45-60-61 Details
  • Transport Information:
  • UN 1439 5.1/PG 2
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CAS No.7789-09-5 Ammonium dichromateCompetitive Product

Supplier:Aoruide International Chemicals Co.,Ltd [ China (Mainland)]

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CAS No.7789-09-5 Ammonium dichromate

Assay:99.5%  Appearance:orange needl...  Package:25kg/drum  Application:can be used ...

Supplier:Nanjing FeiXiang Chemicals & Technology Co.,Ltd. [ China (Mainland)]

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CAS No.7789-09-5 Ammonium dichromate

  Appearance:orange prism...  Application:It is mainly...

This product de watering and becoming brown non-water matter with temperature 84.6°C. It is easy to adsorbed moisture and dissolved into water and not dissolved into alcohol, having high moisture absorption and strong oxidizability, connecting with organic substance and causing i

Supplier:Shenyang jinlaiwang Chemical Co., Ltd. [ China (Mainland)]

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CAS No.7789-09-5 Ammonium dichromate

Ammonium bichromate*We supply this product 1.in very competitive price; 2.quality guaranteed; 3.fast delivery; 4.financial credit support

Supplier:Hangzhou UNIWISE International Co.,Ltd. [ China (Mainland)]

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CAS No.7789-09-5 Ammonium dichromate

Assay:98%

Supplier:Hangzhou Dayangchem Co., Ltd. [ China (Mainland)]

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3875

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CAS No.7789-09-5 Ammonium dichromate

Supplier:Shananxi Dongtaiyuan Chemical Technology Co.,Ltd. [ China (Mainland)]

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CAS No.7789-09-5 Ammonium dichromate

Ammonium dichromate

Supplier:Guangzhou Chemical Reagent Factory [ China (Mainland)]

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Supplier Manufacturer 2139Integral
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CAS No.7789-09-5 Ammonium dichromate

Assay:98.5% min

Parameter Index Chloride 1% max Water Insoluble 0.05% max

Supplier:WUHAN WELLSONG INT'L CO.,LTD [ China (Mainland)]

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CAS No.7789-09-5 Ammonium dichromate

Assay:99.5%  Appearance:orange, acid...

Classification:Other Inorganic Salts Other Names:ammonium dichromate MF:Cr2H2O7.2H3N EINECS No.:232-143-1 Place of Origin:Tianjin China (Mainland) Grade Standard:Industrial Grade Application:industrial use Brand Name:shengshide

Min. Order:1Metric Ton

Supplier:ShengShiDe(Tian Jin) Chemical CO., Ltd [ China (Mainland)]

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CAS No.7789-09-5 Ammonium dichromate

Assay:99%min  Appearance:orange-red n...  Package:25kg/drum or...

1.Name:Ammonium dichromate 2.MF:(NH4)2Cr2O7 3.Application:can be used in printing and dyeing

Supplier:Shenyang Jiutongyuan Chemicals Co., Ltd. [ China (Mainland)]

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CAS No.7789-09-5 Ammonium dichromate

OTHER SPECIFICATIONS: O-A-498A PACKAGING: 100 & 375 lb. Polylined Fiber Drums USES: Ammonium Dichromate is use in engraving, lithography, mordant for dyeing, oil purification and picking. It can also be used as a catalyst in chemical reations, as ingredient in py

Supplier:Hummel Croton Inc. [ Canada]

520Integral
520

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CAS No.7789-09-5 Ammonium dichromate

Molecular Formula (NH4)2Cr2O7 Molecular Weight 252.07 CAS Number 7789-09-5 Description ORANGE / RED CRYSTALLINE POWDER Packing 25 & 50 KG BAGS / DRUMS

Supplier:P.D. Fine Chem [ India]

355Integral
355

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CAS No.7789-09-5 Ammonium dichromate

CAS Number:7789-09-5 Molecular Formula:(NH4)2.Cr2O7 Molecular Weight:252.06 EINECS:232-143-1 Melting Point:170 oC

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67Integral
67

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CAS No.7789-09-5 Ammonium dichromate

Supplier:Bostick & Sullivan [ United States]

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345

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CAS No.7789-09-5 Ammonium dichromate

Supplier:Aadeetya Chemical Center [ India]

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CAS No.7789-09-5 Ammonium dichromate

Supplier:Shahid Rasouli Petrochemical Company [ Iran (Islamic Republic of)]

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CAS No.7789-09-5 Ammonium dichromate

Supplier:ArtCraft Chemicals, Inc. [ United States]

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CAS No.7789-09-5 Ammonium dichromate

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Supplier:The Panchi Chemicals [ India]

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CAS No.7789-09-5 Ammonium dichromate

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CAS No.7789-09-5 Ammonium dichromate

Supplier:ANTEC, INC. [ United States]

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CAS No.7789-09-5 Ammonium dichromate

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CAS No.7789-09-5 Ammonium dichromate

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CAS No.7789-09-5 Ammonium dichromate

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CAS No.7789-09-5 Ammonium dichromate

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CAS No.7789-09-5 Ammonium dichromate

Supplier:Otto Chemie pvt ltd [ India]

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CAS No.7789-09-5 Ammonium dichromate

Supplier:Otto Chemie pvt ltd [ India]

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Reference

Improving the technology of producing chromium corundum
Improving the technology of producing chromium corundum. Vityugin, V. M.; Koyain, V. V.; Poddubnyak, N. I.; Voznyak, A. V.; Frolova, G. S.; Sokolov, L. V. (USSR). Sb. Annot. Nauchno-Issled.Several substances with their cas registry numbers 7440-47-3 and 1302-74-5 may be metioned in this study. Rab. - Tomsk. Politekh. Inst., 6, 107-8 (Russian) 1975. CODEN: SANIDK. DOCUMENT TYPE: Journal CA Section: 57 (Ceramics) The mineral compn. of Cr-contg. corundum [1302-74-5] abrasive powders was detd. and harmful impurities were identified. The uniformity was increased and segregation decreased by using (NH4)2Cr2O7 [7789-09-5] as the Cr oxide source. Effects of heat treatment, magnetic sepn., and acid treatment on the powder properties were detd. .
Formation of fine pattern using water-soluble resist
Formation of fine pattern using water-soluble resist. (Mitsubishi Electric Corp., Japan).Several substances are used for example 7789-09-5 and 67-63-0 which are their cas registry numbers. Jpn. Kokai Tokkyo Koho JP 59053840 A2 28 Mar 1984 Showa, 4 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: G03C005-00; G03C005-24; G03F007-00. APPLICATION: JP 82-165523 20 Sep 1982. DOCUMENT TYPE: Patent CA Section: 74 (Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes) The imaging method consists of (1) formation of water-sol. resist layer on a substrate, (2) pattern formation by irradn. by light and development with water, and (3) rinsing with org. solvent sol. in water. Preferable types of solvents are described. The method gives well defined pattern with high resoln. Thus, photosensitive soln. was prepd. by mixing 15% gelatin soln. 30 and 10% NH4 dichromate soln. 2.5 mL. A Si wafer with 5000 ? oxide layer was coated with the soln., prebaked in N, and irradiated through photomask using a Hg lamp. Immersion in water (15 s) and rinsing in iso-PrOH for 20 s, followed by drying with N stream, gave a 1 mm thick resist pattern of 2 mm line resoln. .
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