无码aⅴ精品一区二区三区浪潮,久久无码人妻国产一区二区,免费看又色又爽又黄的国产,成人毛片18女人毛片免费

產(chǎn)品中心
Fine Powder L(+)-Tartaric Acid
Fine Powder L(+)-Tartaric Acid is an optimal gypsum retarder, which can not only prolong and match the operation time of gypsum mortar, but also maintain sufficient flexural and compressive strength of gypsum mortar after curing.
Structure
基礎(chǔ)指標
  • Chemical Formula:
    C4H6O6
  • Assay:
    94.5-96.5%
  • Molecular Weight:
    150.09
  • Moisture:
    ≤0.2%
  • CAS NO.:
    87-69-4
  • Specific Rotation:
    +12.0°~+12.8°
  • Melting Point:
    168-170°C
提交成功 !