Naphthalene

• Post Date:

  May 22,2017

• Expiry Date:

  Nov 18,2017

• Detailed Description:

  Cas No. :91-20-3

  Taking  naphthalene from coking industry as raw material and using multiple directional crystallization method, we are able to produce flaky Refined naphthalene with a purity of more than 99%. 
  First, Physical and chemical properties 
  Molecular Formula: C10H8 
  Molecular Weight: 128 
  white or slightly pink flaky crystal at room temperature, with characteristic odor of naphthalene; dissolved in ether, alcohol, chloroform, etc., can sublimate at room temperature or form explosive mixture if mixed with air, so it is a type 3 dangerous goods, Specific gravity 1.145, Boiling point: 218 ℃, Melting point: 80 ℃, Explosive limit 0.9-5.19%.  
  Second, Quality index
  In accordance with national standard (GB / T6699-1998) of Refined naphthalene. 
  Its technical index should meet the following requirements: 
  3.4 Product specifications and quality index
  Table 3.1 Specifications (GB6699-1998)

  Item	Refined naphthalene
  	Top grade	First grade	Qualified product
  Appearance	White flaky crystal, easy to sublimation	White, slightly reddish or yellowish powder, flaky crystals
  Content	More than 99%	98.95%
  Crystallization point (℃, not less than)	79.8	79.5	79.3
  Non-volatile matter, (% not more than)	-	0.01	0.02
  Ash,%	-	0.006	0.008
  Pickling colorimetric, according to standard colorimetric solution, is not darkener than	2#	4#	-

  Third, use 
  as a basic organic chemical material, Refined naphthalene and is widely used in dyes,synthetic fibers, pharmaceuticals, pesticides and so on. 
  
  Fourth, packing 
  Sealed tightly, kept in clean polyethylene film bag lined woven bag, net weight 50Kg/bag

• CAS Registry Number:

  91-20-3

• Synonyms:

  ;Naphthalene [BSI:ISO];AI3-00278;Albocarbon;CCRIS 1838;Camphor tar;Caswell No. 587;Dezodorator;EPA Pesticide Chemical Code 055801;HSDB 184;Mighty 150;Mighty RD1;Moth balls;Moth flakes;NCI-C52904;NSC 37565;Naftalen;Naftalen [Polish];Naphtalene;Naphtalene [ISO:French];Naphthalin;Naphthaline;Naphthene;RCRA waste number U165;Tar camphor;White tar;Naphthalene, pure;Naphthalene (molten);Naphthalene, crude or refined;Naphthalene, crude or refined [UN1334] [Flammable solid];Naphthalene, molten;Naphthalene, molten [UN2304] [Flammable solid];Refined Naphthalene;

• Molecular Formula:

  C₁₀H₈

• Molecular Weight:

  128.17

• Molecular Structure:

  

• Hazard Symbols:

   Xn:Harmful;
   N:Dangerous for the environment;
  

• Risk Codes:

  R22:;
  R40:;
  R50/53:;
  

• Safety Description:

  S36/37:;
  S46:;
  S60:;
  S61:;
  

• Company:

  Shouguang Jinyu Chemical Co., Ltd.     [ China ]          

• Contact:

  Manager Liu

• Tel:

  +86-536-5258520 5209955 520592

• Fax:

  +86-536-5676556

• Email:

  chinalukeone@yeah.net