| [Mgeni (223.104.*.*)]majibu [Kichina ] | Wakati :2025-03-22 |  Paraben Hydroxybenzoic Acid
CAS Number: 99-96-7,
Mfumo wa Molekuli: C7H6O3,
Uzito wa Masi: 138.12,
EINECS: 202-804-9,
Kiwango cha kuyeyuka: 213-217 °C (lit.),
Kiwango cha Kuchemsha: 213.5 ° C (makadirio mabaya), msongamano
: 1,46 g/cm＜ sup＞3＜/sup＞;
wiani mwingi: 600kg / m3;
shinikizo la mvuke: 0Pa kwa 20 ° C,
fahirisi ya refractive: 1.4600 (makadirio),
FEMA: 3986 _ 4-HYDROXYBENZOIC ACID;
kiwango cha flash: 199 °C;
hali ya kuhifadhi:Hifadhi chini ya 30 °C;
umumunyifu:umumunyifu katika methanoli:5%,wazi hadi chafu kidogo, isiyo na rangi hadi manjano isiyokolea;
fomu: poda ya fuwele;
mgawo wa asidi (pKa):4.48(saa 19 °C);
rangi: nyeupe hadi pembe za ndovu,
pH: 3.3 (1g/l, H2O, 20°C);
Harufu: Phenolic Nut,
Harufu: phenolic,
Asili ya Biolojia: synthetic,
Umumunyifu wa Maji: 5 g/L (20 ºC);
Merck:14,4812;
Nambari ya JECFA:957;
BRN:970950;
InChIKey:FJKROLUGYXJWQN-UHFFFAOYSA-N;
Lopp: 0.878 att 22 ° g; |
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