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CAS:5949-29-1
Molecular formula:C6H10O8
Molecular weight:210.13900
Appearance:White crystalline powder
Melting point: -94 °C
Boiling point: 56 °C
Flash point: 1 °F
Appearance |
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Index | BP | USP | FCC | E 330 | GB 1886.235-2016 | Q-370725WYX 007-2019 |
Appearance | Colorless or white crystalline particles or powder, very soluble in water and ethanol | / | White or colorless white crystal or powder, divided into monohydrate and anhydrous citric acid monohydrate, which is weathered in dry air, odorless and extremely sour. 1g citric acid can be dissolved in 0.5ml water, 2ml ethanol and 30ml ether | / | Colorless or white, crystalline particles or powder, odorless, extremely sour taste, citric acid monohydrate is slightly weathered in dry air | Colorless or white, crystalline particles or powder, odorless, extremely sour taste, citric acid monohydrate is slightly weathered in dry air |
Identification test | Compliance test | |||||
Solution color & Clarity | Compliance test | Compliance test | / | / | / | Compliance test |
Content % | 99.5-100.5 | 99.5-100.5 | 99.5-100.5 | ≥99.5% | 99.5-100.5 | 99.5-100.5 |
Water % | 7.5-9.0 | 7.5-9.0 | ≤8.8 | ≤8.8 | 7.5-9.0 | 7.5-8.8 |
Carbonaceous compound | Shallower than standard | Shallower than standard | below 470nm，A≤0.52，T≥30% | Shallower than standard K | ≤1.0 | Shallower than standard or below 470nm，A≤0.52， T≥30% |
Sulfuric acid ash % | ≤0.1 | ≤0.1 | ≤0.05 | ≤0.05 | ≤0.05 | ≤0.05 |
sulfate ppm | ≤150 | ≤150 | / | / | ≤150 | ≤50 |
chloride ppm | / | / | / | / | ≤50 | ≤5 |
oxalate ppm | ≤360 | ≤360 | ≤100 | ≤100 | ≤100 | ≤50 |
Calcium salt ppm | / | / | / | / | ≤200 | / |
Al ppm | ≤0.2 | ≤0.2 | / | / | / | ≤0.2 |
As ppm | / | / | / | ≤1 | ≤1 | ≤0.1 |
Pt ppm | / | / | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.1 |
Hg ppm | / | / | / | ≤1 | / | ≤0.1 |
heavy metal ppm | / | / | / | / | / | ≤5 |
Bacterial endotoxin IU/mg | ＜0.5 | Compliance test | / | / | / | ＜0.5 |
Laurylamine mg/kg | / | / | ≤0.1（Citric acid extracted with organic solvent only） | / | / | / |
1. It can be used as food sour agent and antioxidant regulator. For beverages, jams, fruits and pastries.
2. About 10% citric acid is used in the pharmaceutical industry, mainly as an anti acid antidote, flavoring agent, cosmetics, etc.
3. About 15% citric acid is used in the chemical industry as a buffer, complexing agent, metal cleaner, mulberry agent, gelling agent, toner, etc. in electronics, textiles, petroleum, leather, architecture, photography, plastics, casting and ceramics.
Weifang Ensign Industry Co., Ltd. is a large enterprise which specializes in the production of Citric Acid Series products and Alcohol Series products. Ensign Industry is located in Chinese Sapphire City---Changle, where there is convenient traffic, abundant products, advantageous geographic location and obvious location advantage, and the waterway, airway, railway and highway are very convenient. The nearby seaports are Qingdao, Yantai, Rizhao, Weifang and Longkou. It faces Qingdao international airport on the east and Jinan international airport on the west. Jiaoji railway, Jiqing highway and No. 309 National Road run through Changle. It's just 1km away from railway freight station.
♦ Our factory is famous for its comparison in foreign markets, with a continuous and stable supply of products. Most other domestic counterparts are intermittent, few factories can be stably supplied.
♦ Our factory works with a lot of customers. We are a country with our account and export rights, with over 70% of its products being sold by itself or through a foreign trade company to multiple countries and regions.
♦ You can get free samples to test the quality before placing orders.
We are a manufacturer, and we own a factory located in Changle County, Weifang City with 21 years of history. And it covers an area of about 1100 mu.
You are warmly welcome to visit us! You can arrive at Qingdao International Airport first and then we will pick you up at our factory.
TT, LC, OA, and DA, all the payments are optional, with the support of Chemball.
Yes, please contact us if you have any special requests, you will get what you want.
Please feel free to contact me and we will get free samples(within 500g) to test the quality before placing orders.
Manufacturing
