Potassium dichromate | K2Cr2O7 - PubChem

Potassium dichromate | K2Cr2O7 - PubChem

Potassium dichromate primarily affects the respiratory tract causing ulcerations, shortness of breath, bronchitis, pneumonia and asthma but can also affect the gastrointestinal tract, liver, kidneys and immune system. This substance is a known human carcinogen and is associated with an increased risk of developing lung cancer and cancer of the sinonasal cavity. (NCI05) NCI Thesaurus (NCIt) 10,potassium dichromate - Substance Information - ECHA,water solution potassium dichromate . C&L Inventory . Other identifiers . 024-002-00-6 . C&L Inventory . Index Number. 7778-50-9 . EC Inventory, C&L Inventory, Candidate List, Authorisation list, Registration dossier, Pre-Registration process, FCM Active and Intelligent Materials - CMRs not allowed for use, CAD - Chemical Agents Directive, Art. 2(b)(i) - Hazardous Agents, Construction Product,Potassium dichromate ACS reagent, >= 99.0 % | 7778-50-9,,Potassium dichromate is a red-orange colored solid. Its crystals belong to the triclinic crystal system. On heating above 600°C, it decomposes to give oxygen, potassium chromate and chromium (III) oxide. It acts as a strong oxidizing agent in acidic media.Potassium dichromate - Brief Profile - ECHA,water solution potassium dichromate. C&L Inventory . Other names. Other identifiers. 024-002-00-6. Index number. C&L Inventory . 7778-50-9. CAS number. EC Inventory, C&L Inventory, Candidate list, Authorisation list, Registration dossier, REACH pre-registration, Other, FCM Active and Intelligent Materials - CMRs not allowed for use, CAD - Chemical Agents Directive, Art. 2(b)(i) - Hazardous,Potassium Dichromate (VI) | Sigma-Aldrich,Potassium dichromate solution. 1 Product Result | Match Criteria: Keyword Linear Formula: K 2 Cr 2 O 7. Molecular Weight: 294.18. CAS Number: 7778-50-9. 1.60333 ; c(K 2 Cr 2 O 7) = 1/60 mol; standardised against silver nitrate solution, Titripur ® Supelco pricing. 1,Potassium Dichromate (235-430 nm) - Starna,Description and Discussion Potassium dichromate in 0.001 M perchloric acid, permanently sealed by heat fusion into 10 mm UV-quality quartz cells. Solutions are prepared from solid potassium dichromate, NIST SRM 935a.Potassium dichromate liquid filter - Hellma,Potassium dichromate in perchloric acid is very suitable for checking the photometric accuracy of spectrophotometers. In the UV range, the Potassium dichromate spectrum has characteristic maxima at 257 nm and 350 nm and characteristic minima at 235 nm and 313 nm. The spectrum reaches a plateau at 430 nm, which is used to determine photometric accuracy in the visible range. Hellma Analytics,Potassium dichromate - Registration Dossier - ECHA,Potassium dichromate EC Number: 231-906-6 EC Name: Potassium dichromate CAS Number: 7778-50-9 Molecular formula: K2Cr2O7 IUPAC Name: dipotassium [(oxidodioxochromio)oxy]chromiumoylolate. Composition(s) generated upon use Other types of composition(s) Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment ofPotassium Dichromate (235-430 nm) - Starna,Description and Discussion Potassium dichromate in 0.001 M perchloric acid, permanently sealed by heat fusion into 10 mm UV-quality quartz cells. Solutions areICSC 1371 - POTASSIUM DICHROMATE,The substance is very toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment. It is strongly advised not to let the chemical enter into the environment.

Potassium dichromate | Allergic Contact Dermatitis

Potassium dichromate | Allergic Contact Dermatitis

Potassium dichromate is found naturally in our environment; in sand, ash, clay, and loam. It can be found in tools made of steel, and chrome-plated objects (silverware, handles, bracelets, needles, etc.).Potassium Dichromate - LabChem Inc,Potassium Dichromate Safety Data Sheet according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations Date of issue: 12/11/2014 Revision date: 05/29/2018 Supersedes: 01/31/2018 Version: 1.2 05/29/2018 EN (English US) Page 1 SECTION 1: Identification . 1.1. Identification . Product form : Substance Substance name : Potassium Dichromate Chemical name : potassium,Potassium dichromate liquid filter - Hellma,Potassium dichromate in perchloric acid is very suitable for checking the photometric accuracy of spectrophotometers. In the UV range, the Potassium dichromate spectrum has characteristic maxima at 257 nm and 350 nm and characteristic minima at 235 nm and 313 nm.Potassium Dichromate Solution Standard, Set of 2,The Potassium Dichromate Solution Standard is available in a set of two or six standards. Both standard sets are: Supplied in 0.001M perchloric acid in permanently sealed quartz cells; Compatible with any cell holder that accommodates 10mm pathlength rectangular cells; Traceable to NIST™ standards and supplied with a calibration certificate ; Calibrated for use with instruments with a SBW of,Potassuim Dichromate Reference for Absorbance/Linearity,Potassium Dichromate solvated in dilute (0.001N) perchlorate acid has been found to be the best method for testing the absorbance scale and linearity of spectrophotometers in the UV. Starna purchases the potassium dichromate crystals directly from NIST (SRM 935a). We then make up the solutions as per the instructions from NIST and permanently heat fuse seal the solutions in UV quartz,Right to Know Hazardous Substance Fact Sheet,Potassium Dichromate, (2) while wearing particulate filters abnormal resistance to breathing is experienced, or (3) eye irritation occurs while wearing a full facepiece respirator. Check to make sure the respirator-to-face seal is still good. If it is, replace the filter or cartridge. If the seal is no longer good, you may need a new respirator. f Consider all potential sources of exposure in,SAFETY DATA SHEET - Fisher Sci,Potassium dichromate Revision Date 19-Jan-2018 Specific Hazards Arising from the Chemical The product causes burns of eyes, skin and mucous membranes. Oxidizer: Contact with combustible/organic material may cause fire. May ignite combustibles (wood paper, oil, clothing, etc.). Do not allow run-off from fire-fighting to enter drains or water,Potassium Dichromate - an overview | ScienceDirect Topics,Potassium dichromate is used mostly for the analysis of iron (see Table 12-4).Either SnCl 2 or the zinc reductor is used for the adjustment of the iron to the 2+ oxidation state. Sodium diphenylamine sulfonate (H 3 PO 4 must be present) or 5,6-dimethylferroin and N-phenylanthranilic acid can be used as indicators.If needed, a K 2 Cr 2 O 7 solution can be standardized against pure iron.Potassium Dichromate - an overview | ScienceDirect Topics,Potassium dichromate is another inorganic oxidant that can be supported on alumina and used to convert alcohols into carbonyl compounds. 17 Its chief merit is its selectivity for allylic and benzylic alcohols. 18,19 For instance, 1-phenylpropane-1,3-diol is oxidized selectively to the benzylic oxidation product. Alumina also serves as the support for reagents effecting the epoxidation of,Potassium dichromate CAS 7778-50-9 | 102403,Potassium dichromate volumetric standard, secondary reference material for redox titration, traceable to NIST SRM Certipur® Reag. USP. Potassium dichromate CAS No. 7778-50-9, EC Number 231-906-6. - Find MSDS or SDS, a COA, data sheets and more information.

Ricca Chemical - Potassium Dichromate

Ricca Chemical - Potassium Dichromate

Potassium Dichromate is commonly used in acid solution to standardize Ferrous salt solutions using Ferroin indicator: Cr 2 O 7 2-+ 6 Fe 2+ + 14 H + → 2 Cr 3+ + 6 Fe 3+ + 7 H 2 O. Potassium Dichromate is also used to standardize Sodium Thiosulfate solutions. In acidic solution, Potassium Dichromate oxidizes Potassium Iodide to Iodine; the Iodine thus generated can then be titrated with the,ICSC 1371 - POTASSIUM DICHROMATE,POTASSIUM DICHROMATE: ICSC: 1371: Dipotassium dichromate (VI) Dichromic acid, dipotassium salt Potassium bichromate: April 2013: CAS #: 7778-50-9: UN #: 3288 EC Number: 231-906-6 ACUTE HAZARDS PREVENTION FIRE FIGHTING; FIRE & EXPLOSION: Not combustible but enhances combustion of other substances. Risk of fire and explosion on contact with combustible substances.Potassium dichromate | Allergic Contact Dermatitis,Potassium dichromate is found naturally in our environment; in sand, ash, clay, and loam. It can be found in tools made of steel, and chrome-plated objects (silverware, handles, bracelets, needles, etc.). Chromium is also used as a component in leather (shoes, suede, upholstery) and fur tanning agents, wood preservatives, anti-corrosion paints, fire retardants, printing inks, color glazes,Potassium dichromate liquid filter - Hellma,Potassium dichromate in perchloric acid is very suitable for checking the photometric accuracy of spectrophotometers. In the UV range, the Potassium dichromate spectrum has characteristic maxima at 257 nm and 350 nm and characteristic minima at 235 nm and 313 nm. The spectrum reaches a plateau at 430 nm, which is used to determine photometric accuracy in the visible range. Hellma Analytics,Potassium Dichromate Solution Standard, Set of 2,The Potassium Dichromate Solution Standard is available in a set of two or six standards. Both standard sets are: Supplied in 0.001M perchloric acid in permanently sealed quartz cells; Compatible with any cell holder that accommodates 10mm pathlength rectangular cells; Traceable to NIST™ standards and supplied with a calibration certificate ; Calibrated for use with instruments with a SBW of,Potassuim Dichromate Reference for Absorbance/Linearity,Potassium Dichromate solvated in dilute (0.001N) perchlorate acid has been found to be the best method for testing the absorbance scale and linearity of spectrophotometers in the UV. Starna purchases the potassium dichromate crystals directly from NIST (SRM 935a). We then make up the solutions as per the instructions from NIST and permanently heat fuse seal the solutions in UV quartz,Potassium chromate - Wikipedia,It is prepared by treating potassium dichromate with potassium hydroxide: K 2 Cr 2 O 7 (aq) + 2KOH → 2K 2 CrO 4 + H 2 O. Or, the fusion of potassium hydroxide and chromium oxide: 2KOH + Cr 2 O 3 → 2K 2 CrO 4 + H 2 O. In solution, the behavior of potassium and sodium dichromates are very similar. When treated with lead(II) nitrate, it gives an orange-yellow precipitate, lead(II) chromate,,,,