亚洲中文字幕第二十三页,51妺嘿嘿午夜福利,波多野结衣美乳人妻hd电影欧美

LOADING IMAGES

白凡士林

CAS號	8009-03-8
規格	1kg/袋	純度	工業級99.9%
貨號	HATCH552	貨期	需咨詢
品牌	海曲	庫存	200kg
規格	1kg/袋
純度	工業級99.9%
貨號	HATCH552
貨期	---
品牌	海曲
庫存	200kg
注意：請務必與賣家聯系核實單價庫存，以確保您的資金安全及交易順利。
參考價：￥50.00 元/公斤

立即詢盤

貨號	品牌	純度	規格	參考價	貨期
HATCH552	海曲	工業級99.9%	1kg/袋	￥50.00元/公斤	---
10124	---	99%	按需包裝千克/包	需詢盤	---

產品詳情

詳細信息(中文)：
儲存方式編輯
儲存于陰涼、干燥、通風良好的倉庫內遠離火種、熱源。防止陽光直射 [2]
性狀編輯
本品為白色或微黃色均勻的軟膏狀物；無臭或幾乎無臭；與皮膚接觸有滑膩感；具有一定的拉絲性。本品在約35℃的苯中易溶，在約35℃的氯仿中溶解，在乙醚中微溶，在乙醇或水中幾乎不溶。 [1]
熔點
本品的熔點（附錄Ⅵ C第三法）為45～60℃。 [1]
檢查顏色
取本品10g置燒杯中，在水浴上加熱使熔融，傾注于比色管中與同體積的對照液（取比色用重鉻酸鉀溶液7.8ml 與比色用硫酸銅溶液0.2ml,搖勻，取2.5ml, 加水至25ml）比較，顏色不得更深（比色時應將比色管靠近白色背景成一無熒光的角度，在反射光下進行觀察）。 [1]
雜質吸收度編輯
取本品，加三甲基戊烷制成每1ml 中含0.50mg的溶液，照分光光度法（附錄Ⅳ A）測定，在290nm 波長處的吸收度不得過0.50。
錐入度、酸堿度、有機酸、異性有機物與熾灼殘渣、硫化物照黃凡士林項下的方法檢查，應符合規定。 [1]
主要用途編輯
具防水性，是一種非常好的保濕用品，用于配制醫藥的藥膏及皮膚保護油膏用的原料；化妝品乳膏、香脂化妝油等的配料；紡織工業潤滑絲織品用的乳化膏；精密儀器及醫療器械的臨時防護。也可用作橡膠制品的軟化劑。
危險性概述編輯
白凡士林的化學惰性使得它對任何類型的皮膚都沒有刺激性 [2]

詳細信息(英文)：
Storage editor
Stored in a cool, dry, well ventilated warehouse away from fire and heat source. Prevent direct sunlight [2]
Characteristics of editing
This product is white or light yellow paste evenly; Odourless or almost odourless. Contact with the skin has satiny feeling; Has certain drawing. It is easily dissolved in about 35 ℃ benzene, in about 35 ℃ dissolve in chloroform, slightly soluble in ether, hardly soluble in ethanol or water. [1]
Melting point
The melting point of this product (appendix Ⅵ C third method) for 45 ~ 60 ℃. [1]
Check the color
, 10 g beaker, proper heating flux in the water bath, pour in the colorimetric tube with volume on the control of the fluid (color with potassium dichromate solution 7.8 ml and colorimetric with copper sulfate solution 0.2 ml, shake well, take 2.5 ml, add water to 25 ml), color shall not be deeper (colorimetric colorimetric tube should be close to the white background fluorescence nothing Angle, observation under the reflected light). [1]
Impurities absorbance editor
Take this product, plus three methyl pentane made each 1 ml contains 0.50 mg of solution, according to the spectrophotometric method (appendix Ⅳ A) determination of absorbance at 290 nm wavelength shall not be over 0.50.
Cone into the degree, ph, organic acids, heterosexual and organic matter on ignition residue, sulfide, yellow vaseline under way should comply with the rules. [1]
Main use edit
Water proofing property, is a very good moisturizing products, used in preparation of medicine ointment and oil of skin protection with raw material; Cosmetic cream, face cream makeup oil ingredients; Textile industrial lubrication with emulsion cream silk goods; Precision instruments and medical apparatus and instruments of temporary protection. Also can be used as rubber softener.
Summary of dangerous editor
White petroleum jelly chemical inertness make it for every type of skin without irritation [2]