Wallpaper quality identification method

2019-06-18 10:15:49

To identify the quality of wallpaper, generally refer to the following aspects:

1. First discriminate the material: natural material or synthetic (PVC) material, the simple method can be judged by fire. Generally, natural materials burn without odor and black smoke. The burned dust is powder white ash. The synthetic (PVC) material has odor and black smoke when burned, and the burned ash is black globular.

2. Water scrubbing: Good wallpaper color fastness can be scrubbed with a damp cloth or water.

3. Green is harmless. When purchasing, it is possible to get close to the product and smell if there is any odor. The odorous product may contain excessive amounts of harmful substances such as toluene and ethylbenzene, which may cause carcinogenic effects.

4. The color is long. The wallpaper surface coating materials and printing pigments need to be optimized and strictly controlled to ensure that the wallpaper does not yellow after long-term illumination (especially light color, white wallpaper).

5. See if the pattern style is unique and the production process is excellent.

Sulfobutyl Beta Cyclodextrin is the product thatβ-cyclodextrin 6 (also including 2, 3) OH is substituted by Sulfobutyl. It can be divided into single substitution, multiple substitution and total 6 substitutionβ-Cyclodextrin. The molecular formula is therefore different. Sulfobutyl Ether-Beta-Cyclodextrin/sulfobutyl ether-β-cyclodextrin has special affinity and inclusion for nitrogen containing. drugs.Our products including sulfobutyl ether-beta-cyclodextrin sodium salt,betadex sulfobutyl ether sodium,sulfobutyl ether-β-cyclodextrin sodium.

Sulfobutyl Ether-β-cyclodextrin

Product name : Sulfobutyl Ether-Beta-cyclodextrin

Product No. : SBE-β-CD
CAS No. : 182410-00-0

Appearance : white powder

Details:

Sulfobutyl Ether-Beta-cyclodextrin is anionic highly water-soluble cyclodextrin derivative. It can well form non covalent complex with drug molecular inclusion, to improve the stability, water solubility and safety of drugs, reduce the renal toxicity, ease the drug hemolysis, control the drug release rate, cover up the bad smell, etc..

Sulfobutyl Ether-Beta-cyclodextrin is used for Injection medicine, oral medicine, nasal medication and eye treatment. Sulfobutyl Ether-Beta-cyclodextrin has special affinity and inclusion for drugs containing nitrogen. 

Specification of sulfobutyl beta cyclodextrin

ITEMS

SPECIFICATION

Appearance

White to off-white solid, free from foreign matter

Solution Clarity

A 30%w/v solution in water is clear and essentially free from particles of foreign matter

Identification (IR)

Consistent with SBECD standard

     Identification(Sodium)

Identify test are positive for Sodium

Identification(LC)

the retention time of the major peak of  sample solution corresponds to the  standard solution

Average Degree of Substitution

6.2-6.9

Water solution pH

pH of 30%w/v solution in water is 5.8-6.8

Heavy Metals

≤5ppm

Water

≤10%

β-Cyclodextrin Content

≤0.1%

Sodium Chloride

≤0.2%

1,4-butane sultone

≤0.5ppm

4-Hydroxybutane-1-Sulfonic Acid

≤0.09%

Disodium bis-(4-sulfobtyl) ether

≤0.05%

Assay

95%-105%

Bacterial endotoxins

≤20EU/g

Microbiology

Total viable aerobic count (mould plus yeast)

≤100CFU/g

Escherichia Coli

Absence

mould plus yeast

≤50CFU/g



Sulfobutyl Beta Cyclodextrin

Sulfobutyl Beta Cyclodextrin,Sulfobutyl Ether Beta Cyclodextrin,White Sulfobutyl Beta Cyclodextrin,98% Sulfobutyl Beta Cyclodextrin

Shandong Binzhou Zhiyuan Biotechnology Co., LTD , http://www.zycydextrin.com