BAIJIAN - Third party testing organization
Manganese tetroxide is an oxide with the molecular formula Mn3O4. It is a black tetragonal crystal、 which is formed by burning. Relative density 4.856. Insoluble in water、 soluble in concentrated hydrochloric acid (co heating and releasing chlorine gas) and concentrated sulfuric acid (co heating and releasing oxygen). It belongs to the spinel class、 where divalent and trivalent manganese ions are distributed at two different lattice positions. Oxygen ions are tightly packed in cubic form、 with divalent manganese ions occupying tetrahedral voids and trivalent manganese ions occupying octahedral voids. At temperatures below 1443K、 manganese tetroxide exhibits a deformed tetragonal spinel structure、 which is attributed to the Ginger Taylor effect; Above 1443K、 it has a cubic spinel structure. Prepare by burning manganese oxides、 hydroxides、 or sulfates、 carbonates in air or oxygen to about 1000 ℃. Used in glass manufacturing
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific、 fair、 and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsinspection and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered、 meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing、 with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle、 low cost、 and attentive service 7. Possess authoritative qualifications such as CMA、 CNAS、 CAL、 etc 8. The testing report is authoritative and effective、 and is generally used in China