水溶性鞣酸蛋白/鞣酸蛋白 新品

产品名称

Product Name

水溶性鞣酸蛋白

Water-soluble tannalbin

CAS  NO.

———

产品批号

Batch No.

HBWS-20250301

产品货号

Product Code

HBW-R107

检测日期

Test Date

2025-03-12

包装规格

Packaging

25KG/桶/Drum

复测日期

Retest Date

2027-03-11

检验项目

Test Items

检验指标

Standard

检验结果

Test Results

性状

Characteristics

为黄棕色粉末

Yellow brown powder

符合规定

Complies

鉴别

Identification

A：取本品0.1g,加乙醇10ml, 振摇混合，滤过，滤液加三氯化铁试液1滴，显青紫色到青黑色,放置后生成青黑色沉淀

Take 0.1g of this product, add 10ml of ethanol, shake and mix, filter, add 1 drop of ferric chloride test solution to the filtrate, it turns blue purple to blue black, and after leaving it, a blue black precipitate is generated

B:取本品约 0.lg，加硝酸5ml，溶液显黄色

Take about 0.1g of this product and add 5ml of nitric acid. The solution turns yellow

符合规定

Complies

溶解性

Solubility

取本品0.5g加水100ml，搅拌，应形成稳定乳状液,4小时内不产生沉降

Take 0.5g of this product and add 100ml of water. Stir to form a stable emulsion that does not settle within 4 hours

符合规定

Complies

干燥失重

Loss on drying

≤5.0%

3.7%

炽灼残渣

Residue on ignition

≤2.5%

1.3%

含量（氮）

Assay（N）

≥8.0%（干品计，anhydrous substance）

8.2%

结论

Conclusion

本品符合企业内控质量标准

Complies with In-house standard

储存

Storage

遮光、干燥、密封、阴凉处储存

Preserve in tight containers and store in a dry place