??????? ????????? ????????? ??????? ??????? ????? ?????????? ??????
??????????
description2
????????
???????? ???????
???????? ????? | Fumaric acid |
CAS | 110-17-8 |
MF | C4H4O4 |
MW | 116.07 |
EINECS | 203-743-0 |
??????? ?????????? ????????? ?????????? | ? |
??????? ??????? | 298-300 ° C (subl.) (??????????) |
?????? ????? | 137.07 ° C (????? ??????) |
??????? | 1.62 |
??? ?????? | 1.7 ?????????? Hg (165 ° C) |
FEMA | 2488 | FUMARIC ACID |
???????? ?????????? | 1.5260 (??????) |
Fp | 230 ° C. |
?????? ????. | + 30 ° C ??? ????? ?????. |
???????????? | 95% ???????: ???????? 0.46g / 10 mL ? ????? ? ?????? |
????? | ????? ???????? ??????? |
pka | 3.02 ? 4.38 (25oC ??) |
??? | ??? |
PH | 2.1 (4.9g / l, H2O, 20oC) |
???????? ???? | 40% |
Water Solubility | 0.63 g / 100 mL (25 oC) |
JECFA ?????? | 618 |
???? | 144,287 |
BRN | 605763 |
????????: | ??? ??????????????? ?????. 230 ??????? ?????? ????????? ??????????? ? ?????? ??????????? ?????? ? ?????? ? ???????? ?????? ????? ????????????. ????? ?????????. |
InChIKey | VZCYOOQTPOCHFL-OWOJBTEDSA-N |
CAS DataBase ?????????? ?????????? | 110-17-8 (CAS DataBase ?????????? ??????????) |
NIST ????????? ?????????? ?????????? | ??????? ??????? (110-17-8) |
EPA ?????????? ???????? ????????? | ??????? ??????? (110-17-8) |
?????? | ?????? |
Assay (%) | ≥99.0 |
Mesh | 300 Mesh ???????? |
AS PPM | ≤3 |
????? ???????? (Pb) | ≤10 |
?? (%) | ≤0.3 |
?????? ????????? (%) | ≤0.1 |
??? (Pt-Co) | ≤15 Hazen |
??????? ??????? (oC) | 286-289 |
Solubility (25oC) | ≥1.00g / 100ml ?? |