nav Searchuser
Chemical Identification
Common Name
Borax
中文通用名
硼砂
IUPAC
disodium tetraborate decahydrate
CAS
borax
CAS No.
1303-96-4
Molecular Formula
B4H20Na2O17
Physical Properties
Molecular weight:381.4; Physical form:Colourless crystalline solid, efflorescent at low r.h. Density:1.71 (20 °C); Melting point:742 °C (anhydrous sodium tetraborate); Flash point:A fire retardant; Solubility:In water 47.1 g/l ( pH 9.3, 20 °C). Soluble in glycerol and ethylene glycol. Insoluble in ethanol.; Stability:Stable. When heated above c. 62 °C, borax loses water of crystallisation, first forming the pentahydrate and then anhydrous sodium tetraborate.;
Toxicology
Oral:Acute oral LD50 for rats 4500-6000 mg/ kg. Percutaneous:Acute percutaneous LD50 for rabbits >10 000 mg/kg. Not an eye or skin irritant. Phytotoxicity:Not to be used near desired plants.
Environmental Profile
Ecotoxicology: 
Bees:Not hazardous to bees.Daphnia:LC50 (48 h) 1170 mg/l (disodium tetraborate decahydrate).Fish: LC50 (24 d) for rainbow trout 1320 mg/l (disodium tetraborate decahydrate). 

Environmental fate:
 Animals:Not metabolised in animals.Soil:No microbial degradation. Disappearance from soil is by washing out. Persistence in soil is ×2 y, depending on rainfall and soil structure.
Transport Information
Signal Word:WARNING; Hazard Class:II(Moderately hazardous)

Porduct NewsMore

FMC launches new fungicide Onsuva in Argentina

Difenoconazole fluindapyr

CITYMAX: Ready to serve Chinese Biostimulant market with 55 overseas markets experience

Biostimulants

Nissan Chemical acquires mancozeb fungicide product line from Corteva Agriscience

Mancozeb

Sumitomo Chemical launches insecticide Abaday for caterpillar control in Brazil

Lufenuron Thiodicarb

Survey shows dicamba may reduce the effectiveness of junglerice controls

Dicamba

Canada to approve Beauveria bassiana strain ANT-03-based bioinsecticides

Beauveria bassiana

Syngenta’s wheat fungicide Miravis® Flowable registered in Japan

pydiflumetofen

Canada approves BASF’s new pre-seed herbicide

Topramezone

US EPA proposes new safety measures for chlorpyrifos

Chlorpyrifos

Bayer introduces TilMOR flex-timing fungicide in Canada

Tebuconazole Prothioconazole

Related CompaniesMore