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Gallic acid 中国没食子酸
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详情
Product description 产品描述
Synonyms: benic acid, gallic acid
异 名:蓓酸、五倍子酸
Chemical name: 3,4,5- trihydroxybenzoic acid Molecular formula and weight( based on 1983 international atomic weight )
化学名: 3,4,5- 三羟基苯甲酸 分子式及分子量(按 1983 年国际原子量)
Molecular formula: C6H2(HO)3 .COOH.H2O 分子式: C6H2(HO)3 .COOH.H2O
Molecular weight: 188.4 分子量: 188.4
Properties:White or grey white crystalline powder,losing crystal water at 100°C . Soluble in acetone,ethyl acetate, 85-share water, 6-share ethanol, 2-share boiling water, slightly soluble in cold water, insoluble in benzene or trichloromethane.
性 状:本品为白色或灰白色的结晶性粉末,在 100 摄氏度时失去结晶水。能溶于丙酮、乙酸乙酯, 85 分水、 6 份乙醇、 2 份沸水,微溶于冷水,不溶于苯或三氯甲烷。与三氯化铁作用后产生蓝黑色。
Use:Industrial gallic acid used in analyzing and testing bismuth, cerium, copper, nitryl,phosphorus, silver, thorium and titanium etc.. It is also widely used in the fields including organic synthesis, pharmaceutical, ink, dyes, national defence and food etc..
用 途:工业没食子酸 用于分析测定铋、铈、铜、硝基、磷、银、钍和钛等。还 广泛用于有机合成、制药、墨水、染料、国防、食品各轻工等领域。
Specification: in accordance with JIS K8898-61 and GB5309-85
规 格:产品符合日本国家标准 JIS K8898-61 和国家标准 GB5309-85
Main technical index 主要技术指标:
|
|
日标特级 |
国标特级 |
本厂内控指标 |
|
含量 % ≥ |
98.5 |
98.5 |
99.50 |
|
水溶解试验t |
微黄色,澄明 |
微黄色,澄明 |
微黄色,澄明 |
|
干燥失重 % ≤ |
10.0 |
10.0 |
10.0 |
|
灼烧残渣 % ≤ |
0.05 |
0.10 |
0.05 |
|
硫酸盐 % ≤ |
10.0 PPM |
0.02 |
10.0 PPM |
|
单宁试验 ≤ |
1.0 PPM |
1.0 PPM |
1.0 PPM |
|
浊度 ≤ |
10.0 PPM |
10.0 PPM |
10.0 PPM |
|
色数 APHA ≤ |
150 |
180 |
150 |
|
|
Top quality of Japanese standard |
Top quality of national standard |
Factory standard |
|
Content¡¡ % ≥ |
98.5 |
98.5 |
99.50 |
|
Water solubility test |
Yellowish, clear |
Yellowish, clear |
Yellowish, clear |
|
Loss on drying % ≤ |
10.0 |
10.0 |
10.0 |
|
Residue on ignition % ≤ |
0.05 |
0.10 |
0.05 |
|
Sulphate % ≤ |
10.0 PPM |
0.02 |
10.0 PPM |
|
Tannin test≤ |
1.0 PPM |
1.0 PPM |
1.0 PPM |
|
Turbidity ≤ |
10.0 PPM |
10.0 PPM |
10.0 PPM |
|
Chromatic number APHA ≤ |
150 |
180 |
150 |
包 装:塑料编织袋包装,每袋净重 25Kg ,出口产品用纸板圆桶包装,每桶净重 25Kg 。
Packing: Plastic woven bags, net weight of each bag is 25Kg. Export products are packed in cardboard drums, net weight of each drum is 25Kg.
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