{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

MAGNESI SULFAT-sualan1 - MAGNESI SULFAT Magnesii sulfas...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
MAGNESI SULFAT Magnesii sulfas MgSO 4 .7H 2 O P.t.l: 246,5 Magnesi sulfat ph i ch a t 99,0 đ n 100,5% MgSO ế 4 , tính theo ch ph m đã làm khô. ế Tính ch t B t k t tinh tr ng hay tinh th không màu, bóng. ế D tan trong n c, r t d tan trong n c sôi, th c t không tan trong ethanol 96%. ướ ướ ế Đ nh tính Hòa tan 0,50 g ch ph m trong 10 ml ế n c ướ . Dung d ch ph i cho ph n ng đ nh tính c a magnesi và sulfat (Ph l c 8.1). ụ ụ Đ trong và màu s c c a dung d ch Dung d ch S : Hòa tan 5,0 g ch ph m trong ế n c ướ và pha loãng thành 50 ml b ng cùng dung môi. Dung d ch S ph i trong (Ph l c 9.2) và không màu (Ph l c 9.3, ph ng pháp 2). ụ ụ ụ ụ ươ Gi i h n acid - ki m Thêm 0,05 ml dung d ch đ phenol (TT) vào 10 ml dung d ch S. Dung d ch ph i chuy n màu khi thêm không đ c quá 0,2 ml ượ dung d ch acid hydrocloric 0,01 M (CĐ) ho c
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern