Sodium disulfite

7681-57-4
Sodium disulfite
Sodium metabisulfite, Sodium pyrosulfite, Disulfite, Pyrosulfite

产品介绍９�/div>

产品说明

分析说明

Assay (iodometric): 98.0 - 100.5 %
Identity: passes test
Appearance of solution: passes test
pH-value (5 %; water): 3.5 - 5.0
Insoluble matter: �� 0.005 %
Chloride (Cl): �� 0.005 %
Thiosulfate (S?O?):
�� 0.05 %
: passes test
Heavy metals (as Pb): �� 0.001 %
As (Arsenic): �� 0.0001 %
Fe (Iron): �� 0.0005 %

法律信息

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

基本信息

经验(实验)分子弎�/td>	Na2O5S2
分子野�/td>	190.11
MDL编号	MFCD00167602
EC索引叶�/td>	231-673-0

产品性质

质量水平	300
等级	ACS reagent
机构	reag. Ph. Eur.
测定	98.0-100.5% (iodometric)
形式	powder
效能	1540 mg/kg LD50, oral (Rat) >2000 mg/kg LD50, skin (Rat)
pH�?酸碱�?	3.5-5 (20 �? 50 g/L in H2O)
mp	150 � (decomposition)
溶解�?/td>	650 g/L
密度	2.36 g/cm3at 20 ℂ�/td>
堆积密度	1000?1200 kg/m3
痕量阴离孏�/td>	chloride (Cl-): ��0.005% thiosulfate (S2O32-): ��0.05%passes test
痕量阳离孏�/td>	As: �� 0.0001% Fe: �� 0.0005% heavy metals (as Pb): �� 0.001%
储存温度	2-30ℂ�/td>
InChI	1S/2Na.H2O5S2/c;;1-6(2)5-7(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2
InChI key	LDTLADDKFLAYJA-UHFFFAOYSA-L

安全信息

象形国�/td>
警示用语９�/td>	Danger
危险声明	H302 - H318
预防措施声明	P264 - P270 - P280 - P301 + P312 - P305 + P351 + P338 - P501
危险分类	Acute Tox. 4 Oral - Eye Dam. 1
补充剂危宲�/td>	EUH031
储存分类代码	13 - Non Combustible Solids
WGK	WGK 1
闪点(F)	Not applicable
闪点(C)	Not applicable