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China Methylparaben 99-76-3 - China Supplier
China Methylparaben 99-76-3 - China Supplier

Methylparaben 99-76-3

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S?n ph?m khác

M? t?
Th?ng tin b? sung

C?ng th?c hóa(chǎn) h?cC8H8O3
Kh?i l??ng phan t?152.15
C?ng th?c c?u trúcMethyl p-hydroxybenzoate 99-76-3
Kh?i l??ng riêng1,46g/cm
?i?m nóng ch?y125-128 °C (lit.)
?i?m s?i298.6 °C
?i?m b?c cháy280°C
?? tan trong n??cHòa tan ít trong n??c.
áp su?t h?i0.000005 hPa (20 °C)
?? tanEtanol: Tan ???c 0.1m, trong su?t, kh?ng màu
Chi?t su?t1.4447 (??c tính)
H?ng s? axitpKa 8.15(H2OO,t =20.0) (Ch?a ch?c ch?n)
Giá tr? PH5.8 (H2O, 20°C) (dung d?ch b?o hòa)
?i?u ki?n b?o qu?nnhi?t ?? phòng
?n ??nh?n ??nh. Kh?ng t??ng thích v?i ch?t oxy hóa(chǎn) m?nh, baz? m?nh.
?? nh?y c?mD? hút ?m
Di?n m?oB?t k?t tinh
Màu s?cTr?ng ??n g?n nh? tr?ng
Merck14,6107
BRN509801
Tính ch?t ly hóa(chǎn)K?t tinh d?ng kim tr?ng. Hòa tan ít trong n??c, d? hòa tan trong etanol và các dung m?i h?u c? khác.

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