سیتریک اسید با فرمول C₆H₈O₇ یک اسید آلی بی رنگ، بدون بو و بسیار محلول در آب است.
این ماده در صنایع غدایی، آرایشی بهداشتی و دارویی مورد استفاده قرار میگیرد و نقش طعم دهندگی و تنظیم PH را دارد.
مشخصات سیتریک اسید:
Description |
|
| 137002 | Catalogue Number |
| 2-Hydroxypropane-1,2,3-tricarboxylic acid, Hydroxytricarballylic acid | Synonyms |
| Citric acid | Description |
Product Information |
|
| 77-92-9 | CAS number |
| 201-069-1 | EC number |
| Ph Eur,BP,JP,USP,ACS | Grade |
| C₆H₈O₇ | Hill Formula |
| (HOOCCH₂)₂C(OH)COOH | Chemical formula |
| 192.12 g/mol | Molar Mass |
| 2918 14 00 | HS Code |
| MQ500 | Quality Level |
Physicochemical Information |
|
|---|---|
| 200 °C (1013 hPa) (decomposition) | Boiling point |
| 1.665 g/cm3 (18 °C) | Density |
| 153 °C (decomposition) | Melting Point |
| 1.7 (100 g/l, H₂O, 20 °C) | pH value |
| <0.1 hPa (20 °C) | Vapor pressure |
| 560 kg/m3 | Bulk density |
| 1330 g/l | Solubility |
Toxicological Information |
|
| LD50 Rat 3000 mg/kg | LD 50 oral |
Safety Information according to GHS |
|
 |
Hazard Pictogram(s) |
| H319: Causes serious eye irritation. | Hazard Statement(s) |
| P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. | Precautionary Statement(s) |
| Warning | Signal Word |
| GE7350000 | RTECS |
| 10 – 13 Other liquids and solids | Storage class |
| WGK 1 slightly hazardous to water | WGK |
Safety Information |
|
 |
Hazard Symbols |
| irritant | Categories of danger |
| R 36 Irritating to eyes. |
R Phrase |
| S 26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
S Phrase |
Storage and Shipping Information |
|
| Store at +15°C to +25°C. | Storage |
Transport Information |
|
| Kein Gefahrgut | Declaration (railroad and road) ADR, RID |
| No Dangerous Good | Declaration (transport by air) IATA-DGR |
| No Dangerous Good | Declaration (transport by sea) IMDG-Code |
Specifications |
|
| 99.5 – 100.5 % | Assay (alkalimetric, calculated on anhydrous substance) |
| passes test | Identity (IR-spectrum) |
| white to almost white, fine powder | Appearance |
| clear (≤ 3 NTU) and not more intense in color than reference solution Y₇, BY₇ or GY₇ | Appearance of solution (200 g/l; water) |
| ≤ 0.005 % | In water insoluble matter # |
| ≤ 0.001 % | Chlorid (Cl) # |
| ≤ 0.001 % | Phosphat (PO4) # |
| ≤ 20 ppm | Sulfate (SO₄) |
| ≤ 10 ppm | Heavy metals (as Pb) |
| ≤ 0.2 ppm | Al (Aluminium) |
| ≤ 3 ppm | Fe (Iron) # |
| ≤ 2 ppm | Pb (Lead) # |
| ≤ 360 ppm | Oxalates (as C₂H₂O₄) |
| excluded by manufacturing process | Residual solvents (ICH (Q3C)) |
| passes test | Readily carbonisable substance |
| ≤ 0.02 % | Sulfated ash (600 °C) |
| ≤ 1.0 % | Water (according to Karl Fischer) |
| ≤ 100 CFU/g | Total aerobic microbial count (TAMC) |
| ≤ 10 CFU/g | Total combined yeasts/moulds count (TYMC) |
| passes test | Bile-tolerant gram-negative bacteria (absent in 1 g) |
| passes test | Candida albicans (absent in 1 g) |
| passes test | Escherichia coli (absent in 1 g) |
| passes test | Pseudomonas aeruginosa (absent in 1 g) |
| passes test | Salmonella (absent in 10 g) |
| passes test | Staphylococcus aureus (absent in 1 g) |
| < 10 | Bacterial endotoxins |
| # Additional requirements by ACS. Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*). |
|
| Corresponds to Ph. Eur., BP, JP, USP, ACS | |
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Citric acid 1 kg Art 137002
Citric acid with the formula C₆H₈O₇ is a colorless, odorless and highly soluble in water organic acid.
This substance is used in food, cosmetics and pharmaceutical industries and has the role of flavoring and pH regulation.
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