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99.5% citric acid anhydrous / citric acid monohydrate food additive for food and juice

Model No.: nc15
Product Name: 99.5% citric acid anhydrous / citric acid monohydrate food additive for food and juice
Product Origin: Zhengzhou,China
Standard: BP93 / BP98 / USP24
Brand Name: NC
PriceTerms: T/T,DP,L/C
Supply Ability: 100MT/MONTH
Detailed Product Description:

Introduction

Citric acid, at room temperature, is a white crystalline powder. It can exist either in an anhydrous form or as a monohydrate. The anhydrous form crystallizes from hot water, whereas the monohydrate forms when citric acid is crystallized from cold water. The monohydrate can be converted to the anhydrous form by heating above 78 °C. Citric acid also dissolves in absolute (anhydrous) ethanol (76 parts of citric acid per 100 parts of ethanol) at 15 degrees Celsius.

In chemical structure, citric acid shares the properties of other carboxylic acids. When heated above 175°C, it decomposes through the loss of carbon dioxide and water. Citric acid leaves a white crystalline

precipitate.

Product Identification

Product name: Citric acid anhydrous

Synonyms: 2-Hydroxy-1,2,3-propanetricarboxylic acid, 2-Hydroxytricarballylic acid

Molecular Formula: C 6 H 8 O 7

Molecular Weight: 192.12

Molecular structure: →

CASE NO: 77-92-9

Product Grade: Food grade

Physical & Chemical Properties

Citric acid is a colorless translucent crystals or white granules or white crystalline powder, no smell. Soluble in water, ethanol, ethyl ether, insoluble in benzene, slightly soluble in chloroform.

Citric acid is a strong organic acids, there are three H + can be ionization; when heated can be decomposed into variety of products; it can reacted with acid, alkali, glycerol, etc.

Application

As a food additive, citric acid is used as a acidulating, flavoring and preservative in food and

beverages, especially soft drinks. It is denoted by E number E330.

Citric acid is used in biotechnology and the pharmaceutical industry to passivate high-purity process piping (in lieu of using nitric acid). Nitric acid is considered hazardous to dispose once used for this purpose, while citric acid is not.

It is also used as antioxidant, plasticizer, detergent and builder.

Packing

1). Net 25 kg kraft bags

2). Net 25 kg carton

3). According to customers' requirement

Quality standard ( see table )

The quality conforms to BP / USP / FCC / E330 Standard.

Citric acid anhydrous index

Items

Index

Content

99.5%-101%

Moisture

≤0.5%

Sulphated Ash

≤0.05%

Sulphate

≤150 ppm

Oxalate

≤350 ppm

Arsenic

≤1 ppm

Heavy metal

≤10 ppm

Lead

≤1 ppm

Mercury

≤1 ppm

Iron

≤50 ppm

Chloride

≤50 ppm

Aluminum

≤0.2 ppm

Bacterial endotoxin

≤0.5 IU/mg

Barium

Pass test

Readily carbonisable substances

Standard color

Clarity and colour of solution

20% water solution clarity

Shelf life

2 years

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