九九国产精品视频_最近中文字幕视频2019_美女视频黄频大全视频在线观看_老熟女一区二区高清视频

CAS:

135-53-5

Structure formula:

Molecular formula:

C₁₀H₇NaO₅S

Use:

Mainly used as the coupling agent of diazo photosensitive paper, and food additives.

Amount:

≥85% 90% 98% 99%

Molecular weight:

262

Iron:

10PPM

Water solution PH value:

≤3-7

Appearance:

White crystalline powder

Packing:

25kg/fiber drum