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关于此项目
grade
ACS reagent
Quality Level
agency
reag. ISO, reag. Ph. Eur.
vapor pressure
<1 Pa ( 25 °C)
product line
EMSURE®
assay
99.5-100.5% anhydrous basis (acidimetric)
form
solid
potency
3000 mg/kg LD50, oral (Rat)
composition
Water, 7.5-8.8% Karl Fischer
impurities
≤200 ppm Sulfated ash, ≤50 ppm In water insoluble matter
color
clear, white to almost white
pH
1.85 (25 °C, 50 g/L in H2O)
pKa
(1) 3.13, (2) 4.76, (3) 6.4
mp
135-152 °C
transition temp
flash point 173.9 °C
solubility
880 g/L
density
1.54 g/cm3 at 20 °C
bulk density
800‑1000 kg/m3
anion traces
chloride (Cl-): ≤5 ppm, oxalate (as oxalic acid): ≤50 ppm, phosphate (PO43-): ≤10 ppm, sulfate (SO42-): ≤20 ppm
cation traces
Al: ≤0.2 ppm, As: ≤1 ppm, Cu: ≤5 ppm, Fe: ≤3 ppm, Hg: ≤1 ppm, Pb: ≤0.5 ppm, heavy metals (as Pb): ≤5 ppm
storage temp.
2-30°C
SMILES string
OC(CC(O)(C(O)=O)CC(O)=O)=O.O
InChI
1S/C6H8O7.H2O/c7-3(8)1-6(13,5(11)12)2-4(9)10;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);1H2
InChI key
YASYEJJMZJALEJ-UHFFFAOYSA-N
Application
- 热塑性淀粉与聚乳酸生物聚合物共混物作为可持续包装材料的研究:本出版物使用一水柠檬酸合成可生物降解聚合物,强调了其在工业制造和环境部门开发可持续材料方面的效用(Jozinović A et al., 2024)。
Analysis Note
同一性(红外光谱):通过测试
外观:白色至几乎白色或无色晶体
溶液外观(200 g/l;水)澄清(≤ 3 NTU),并且不比参考溶液Y₇、BY₇ 或GY₇的颜色强烈
在水中不溶物#: ≤ 50 ppm
氯化物(Cl): ≤ 5 ppm
磷酸盐(PO₄): ≤ 10 ppm
硫酸盐(SO₄): ≤ 20 ppm
重金属(以 Pb 计): ≤ 5 ppm
Al(铝): ≤ 0.2 ppm
As(砷): ≤ 1 ppm
Hg(汞): ≤ 1 ppm
Cu(铜): ≤ 5 ppm
Fe(铁): ≤ 3 ppm
Fe(铁,符合 Reag. Ph Eur.):适用于铁的极限测试
Pb(铅): ≤ 0.5 - 0,769
草酸盐(以C₂H₂O₄计): ≤ 50 ppm
易碳化物质:通过测试
硫酸灰: ≤ 200 ppm
水(根据Karl Fischer)7.5 - 8.8 %
符合 ACS,ISO 6353/2,Reag.Ph.Eur.
Other Notes
Legal Information
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signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - STOT SE 3
target_organs
Respiratory system
存储类别
11 - Combustible Solids
flash_point_f
345.0 °F - closed cup
flash_point_c
173.9 °C - closed cup
全球贸易项目编号
| 货号 | GTIN |
|---|---|
| 1002441000 | 04022536003429 |
| 1002445000 | 04022536003443 |
| 1002449012 | 04027269677732 |
| 1002440500 | 04022536003405 |
| 1002449026 | 04022536646008 |
